Subject |
has right ascension |
has spectral type |
has declination |
is part of |
has surface temperature |
has orbital period |
has rotation velocity |
has inclination |
is an instance of |
has optical brightness variation |
has V magnitude |
has parallax |
has eccentricity |
has observational problem |
has author |
has color |
has symbol |
has location |
has B-V magnitude |
has distance |
has absorption line |
has ejection velocity |
has temperature |
has relative abundance |
has prototype |
M6e-M9e III |
has abundance |
has lifetime |
has primary |
has period |
has proper motion |
has discoverer |
has absolute magnitude |
has apparent magnitude |
has image |
has name designated with |
has observable variation time scale |
has emission line |
has use |
has synonym |
has definition |
has discovery date |
has luminosity class |
has number of star |
Achernar | 1 37 42.9 | B5 | -57 14 12 | Milky Way | 11000 to 28000 K | | | | subgiant | | 0.46 | from the point of view of Earth's orbit | | | | blue-white | | or center of gravity | -0.16 | 35 pc | He I | | | | | | | | | | | | | brighter than 5 | | | | | | HR 472 | | | IV | |
Aldebaran | 4 35 55.2 | K5III | +16 30 33 | Milky Way | 3600 to 5000 K | | | | naked eye star | | 0.85 | from the point of view of Earth's orbit | | | | orange to red | | or center of gravity | 1.54 | 21 parsecs | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 1457 | A K5 III subgiant (a foreground star in the Hyades). It has a faint M2 V companion. It is now known to be slowly and irregularly variable. | | III | |
Alpha Andromedae | 00 08 23.2 | B8IVpMnHg | +29 05 26 | Milky Way | 11000 to 28000 K | | | | naked eye star | | 2.06 | from the point of view of Earth's orbit | | | | blue-white | | or center of gravity | -0.11 | | He I | | | | | | | | | | | | | brighter than 5 | | | | | | HR 15 | | | IV | |
Alpha Antliae | 10 27 09.1 | K4III | -31 04 04 | Milky Way | 3600 to 5000 K | | | | naked eye star | | 4.25 | from the point of view of Earth's orbit | | | | orange to red | | or center of gravity | 1.45 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 4104 | | | III | |
Alpha Apodis | 14 47 51.6 | K2.5III | -79 02 41 | Milky Way | 3600 to 5000 K | | | | naked eye star | | 3.83 | from the point of view of Earth's orbit | | | | orange to red | | or center of gravity | 1.43 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 5470 | | | III | |
Alpha Arietis | 02 07 10.3 | K2IIIabCa-I | +23 27 45 | Milky Way | 3600 to 5000 K | | | | naked eye star | | 2.00 | from the point of view of Earth's orbit | | | | orange to red | | or center of gravity | 1.15 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 617 | | | III | |
Alpha Caeli | 4 40 33.6 | F2V | -41 51 50 | Milky Way | 6000 to 7500 K | | | | naked eye star | | 4.45 | from the point of view of Earth's orbit | | | | yellow-white | d | or center of gravity | 0.34 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 1502 | | | V | |
Alpha Cassiopeiae | 0 40 30.4 | K0III | +56 32 15 | Milky Way | 3600 to 5000 K | | | | naked eye star | | 2.23 | from the point of view of Earth's orbit | | | | orange to red | | or center of gravity | 1.17 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 168 | | | III | |
alpha Centauri | 14 39 36.2 | G2V | -60 50 07 | Milky Way | 5000 to 6000 K | | | | naked eye star | | -0.01 | from the point of view of Earth's orbit | | | | yellowish | d | or center of gravity | 0.71 | 4.35 light-years | | | | | | | half the stars in the solar neighborhood are members of star systems | | | 80 years | 3'.68 per year | | | brighter than 5 | | | | | | HR 5459 | A binary star whose components have G2 V and K5 V spectral types. The nearest star system to the Sun and the third brightest star in the night sky. | | V | 2 |
Alpha Cephei | 21 18 34.7 | A7V | +62 35 08 | Milky Way | 10000 K | | | | naked eye star | | 2.44 | from the point of view of Earth's orbit | | | | white | d | or center of gravity | 0.22 | | H I | | | | | | | | | | | | | brighter than 5 | | | | | | HR 8162 | | | V | |
Alpha Chamaeleontis | 08 18 31.7 | F5III | -76 55 11 | Milky Way | 6000 to 7500 K | | | | naked eye star | | 4.07 | from the point of view of Earth's orbit | | | | yellow-white | | or center of gravity | 0.39 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 3318 | | | III | |
Alpha Circini | 14 42 30.3 | ApSrEuCr: | -64 58 31 | Milky Way | 10000 K | | | | naked eye star | | 3.19 | from the point of view of Earth's orbit | | | | white | | or center of gravity | 0.24 | | H I | | | | | | | | | | | | | brighter than 5 | | | | | | HR 5463 | | | | |
Alpha Columbae | 05 39 38.9 | B7IVe | -34 04 27 | Milky Way | 11000 to 28000 K | | | | naked eye star | | 2.64 | from the point of view of Earth's orbit | | | | blue-white | | or center of gravity | -0.12 | | He I | | | | | | | | | | | | | brighter than 5 | | | | | | HR 1956 | | | IV | |
Alpha Coronae Autralis | 19 09 28.2 | A2V | -37 54 16 | Milky Way | 10000 K | | | | naked eye star | | 4.11 | from the point of view of Earth's orbit | | | | white | d | or center of gravity | 0.04 | | H I | | | | | | | | | | | | | brighter than 5 | | | | | | HR 7254 | | | V | |
Alpha Coronae Borealis | 15 34 41.2 | A0V | +26 42 53 | Milky Way | 10000 K | | | | naked eye star | | 2.23 | from the point of view of Earth's orbit | | | | white | d | or center of gravity | -0.02 | | H I | | | | | | | | | | | | | brighter than 5 | | | | | | HR 5793 | | | V | |
Alpha Doradus | 4 33 59.8 | A0IIISi | -55 2 42 | Milky Way | 10000 K | | | | naked eye star | | 3.27 | from the point of view of Earth's orbit | | | | white | | or center of gravity | -0.10 | | H I | | | | | | | | | | | | | brighter than 5 | | | | | | HR 1465 | | | III | |
Alpha Equulei | 21 15 49.3 | G0III+A5V | + 5 14 52 | Milky Way | 5000 to 6000 K | | | | naked eye star | | 3.92 | from the point of view of Earth's orbit | | | | yellowish | | or center of gravity | 0.53 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 8131 | | | III | |
Alpha Fornacis | 03 12 04.2 | F8V | -28 59 14 | Milky Way | 6000 to 7500 K | | | | naked eye star | | 3.87 | from the point of view of Earth's orbit | | | | yellow-white | d | or center of gravity | 0.52 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 963 | | | V | |
Alpha Gruis | 22 8 13.9 | B7IV | -46 57 40 | Milky Way | 11000 to 28000 K | | | | naked eye star | | 1.74 | from the point of view of Earth's orbit | | | | blue-white | | or center of gravity | -0.13 | | He I | | | | | | | | | | | | | brighter than 5 | | | | | | HR 8425 | | | IV | |
Alpha Horologii | 04 14 00.1 | K1III | -42 17 40 | Milky Way | 3600 to 5000 K | | | | naked eye star | | 3.86 | from the point of view of Earth's orbit | | | | orange to red | | or center of gravity | 1.10 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 1326 | | | III | |
Alpha Hydrae | 9 27 35.2 | K3II-III | -8 39 31 | Milky Way | 3600 to 5000 K | | | | naked eye star | | 1.98 | from the point of view of Earth's orbit | | | | orange to red | | or center of gravity | 1.44 | | | | | | | | | | | | | | | brighter than 5 | | | | | | Alphard | | | II | |
Alpha Indi | 20 37 34.0 | K0IIICNIII-IV | -47 17 29 | Milky Way | 3600 to 5000 K | | | | naked eye star | | 3.11 | from the point of view of Earth's orbit | | | | orange to red | | or center of gravity | 1.00 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 7869 | | | III | |
Alpha Lacertae | 22 31 17.4 | A1V | +50 16 57 | Milky Way | 10000 K | | | | naked eye star | | 3.77 | from the point of view of Earth's orbit | | | | white | d | or center of gravity | 0.01 | | H I | | | | | | | | | | | | | brighter than 5 | | | | | | HR 8585 | | | V | |
Alpha Leonis | 10 8 22.3 | B7V | +11 58 2 | Milky Way | 11000 to 28000 K | | | | naked eye star | | 1.35 | from the point of view of Earth's orbit | | | | blue-white | d | or center of gravity | -0.11 | | He I | | | | | | | | | | | | | brighter than 5 | | | | | | HR 3982 | | | V | |
Alpha Leporis | 05 32 43.7 | F0Ib | -17 49 20 | Milky Way | 6000 to 7500 K | | | | naked eye star | | 2.58 | from the point of view of Earth's orbit | | | | yellow-white | | or center of gravity | 0.21 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 1865 | | | | |
Alpha Lupi | 14 41 55.7 | B1.5III | -47 23 17 | Milky Way | 11000 to 28000 K | | | | naked eye star | | 2.30 | from the point of view of Earth's orbit | | | | blue-white | | or center of gravity | -0.20 | | He I | | | | | | | | | | | | | brighter than 5 | | | | | | HR 5469 | | | III | |
Alpha Lyncis | 9 21 3.2 | K7IIIab | +34 23 33 | Milky Way | 3600 to 5000 K | | | | naked eye star | | 3.13 | from the point of view of Earth's orbit | | | | orange to red | | or center of gravity | 1.55 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 3705 | | | II | |
Alpha Monocerotis | 07 41 14.8 | K0III | -09 33 04 | Milky Way | 3600 to 5000 K | | | | naked eye star | | 3.93 | from the point of view of Earth's orbit | | | | orange to red | | or center of gravity | 1.02 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 2970 | | | III | |
Alpha Muscae | 12 37 11.0 | B2IV-V | -69 08 08 | Milky Way | 11000 to 28000 K | | | | naked eye star | | 2.69 | from the point of view of Earth's orbit | | | | blue-white | | or center of gravity | -0.20 | | He I | | | | | | | | | | | | | brighter than 5 | | | | | | HR 4798 | | | IV | |
Alpha Ophiuchi | 17 34 56.0 | A5III | +12 33 36 | Milky Way | 10000 K | | | | naked eye star | | 2.08 | from the point of view of Earth's orbit | | | | white | | or center of gravity | 0.15 | | H I | | | | | | | | | | | | | brighter than 5 | | | | | | HR 6556 | | | III | |
Alpha Pavonis | 20 25 38.8 | B2IV | -56 44 07 | Milky Way | 11000 to 28000 K | | | | naked eye star | | 1.94 | from the point of view of Earth's orbit | | | | blue-white | | or center of gravity | -0.20 | | He I | | | | | | | | | | | | | brighter than 5 | | | | | | HR 7790 | | | IV | |
Alpha Persei | 3 24 19.3 | F5Ib | +49 51 41 | Milky Way | 6000 to 7500 K | | | | naked eye star | | 1.79 | from the point of view of Earth's orbit | | | | yellow-white | | or center of gravity | 0.48 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 1017 | | | I | |
Alpha Phoenicis | 0 26 17.0 | K0III | -42 18 22 | Milky Way | 3600 to 5000 K | | | | naked eye star | | 2.39 | from the point of view of Earth's orbit | | | | orange to red | | or center of gravity | 1.09 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 99 | | | III | |
Alpha Pictoris | 06 48 11.4 | A7IV | -61 56 29 | Milky Way | 10000 K | | | | naked eye star | | 3.27 | from the point of view of Earth's orbit | | | | white | | or center of gravity | 0.21 | | H I | | | | | | | | | | | | | brighter than 5 | | | | | | HR 2550 | | | IV | |
Alpha Pyxidis | 08 43 35.5 | B1.5III | -33 11 11 | Milky Way | 11000 to 28000 K | | | | naked eye star | | 3.68 | from the point of view of Earth's orbit | | | | blue-white | | or center of gravity | -0.18 | | He I | | | | | | | | | | | | | brighter than 5 | | | | | | HR 3468 | | | III | |
Alpha Reticuli | 04 14 25.5 | G8II-III | -62 28 26 | Milky Way | 5000 to 6000 K | | | | naked eye star | | 3.35 | from the point of view of Earth's orbit | | | | yellowish | | or center of gravity | 0.91 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 1336 | | | II | |
Alpha Sculptoris | 0 58 36.3 | B7IIIp | -29 21 28 | Milky Way | 11000 to 28000 K | | | | naked eye star | | 4.31 | from the point of view of Earth's orbit | | | | blue-white | | or center of gravity | -0.16 | | He I | | | | | | | | | | | | | brighter than 5 | | | | | | HR 280 | | | II | |
Alpha Scuti | 18 35 12.3 | K3III-IIIb | -08 14 39 | Milky Way | 3600 to 5000 K | | | | naked eye star | | 3.85 | from the point of view of Earth's orbit | | | | orange to red | | or center of gravity | 1.33 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 6973 | | | III | |
Alpha Serpentis | 15 44 16.0 | K2IIIbCN1Fe414 | +6 25 32 | Milky Way | 3600 to 5000 K | | | | naked eye star | | 2.65 | from the point of view of Earth's orbit | | | | orange to red | | or center of gravity | 1.17 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 5854 | | | III | |
Alpha Sextantis | 10 7 56.2 | A0III | -0 22 18 | Milky Way | 10000 K | | | | naked eye star | | 4.49 | from the point of view of Earth's orbit | | | | white | | or center of gravity | -0.04 | | H I | | | | | | | | | | | | | brighter than 5 | | | | | | HR 3981 | | | III | |
Alpha Telescopii | 18 26 58.3 | B3IV | -45 58 06 | Milky Way | 11000 to 28000 K | | | | naked eye star | | 3.51 | from the point of view of Earth's orbit | | | | blue-white | | or center of gravity | -0.17 | | He I | | | | | | | | | | | | | brighter than 5 | | | | | | HR 6897 | | | IV | |
Alpha Trianguli Australis | 16 48 39.9 | K2IIb-IIIa | -69 01 40 | Milky Way | 3600 to 5000 K | | | | naked eye star | | 1.92 | from the point of view of Earth's orbit | | | | orange to red | | or center of gravity | 1.44 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 6217 | | | II | |
Alpha Tucanae | 22 18 30.1 | K3III | -60 15 35 | Milky Way | 3600 to 5000 K | | | | naked eye star | | 2.86 | from the point of view of Earth's orbit | | | | orange to red | | or center of gravity | 1.39 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 8502 | | | III | |
Alpha Vulpeculae | 19 28 42.2 | M0III | +24 39 54 | Milky Way | greater than 1000 Kelvin | | | | naked eye star | | 4.44 | from the point of view of Earth's orbit | | | | | | or center of gravity | 1.50 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 7405 | | | III | |
Altair | 19 50 46.9 | A7 V | +08 52 06 | Milky Way | 10000 K | | | | naked eye star | | 0.77 | from the point of view of Earth's orbit | | | | white | d | or center of gravity | 0.22 | 4.8 pc | H I | | | | | | | | | | | | | mv = 0.78 | | | | | | HR 7557 | A bright A7 V star. | | V | |
Antares | 16 29 24.4 | M1.5Iab-Ib+B4V | -26 25 55 | Milky Way | greater than 1000 Kelvin | | | | naked eye star | | 0.96 | from the point of view of Earth's orbit | | | | | | inner edge of the Orion spiral arm | 1.83 | 125 parsecs | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 6134 | A red M1 Ib supergiant. It has a B3 V companion, which is a radio source. | | I | |
Arcturus | 14 15 39.6 | K1IIIbCN-1 | +19 10 57 | Milky Way | 3600 to 5000 K | | | | naked eye star | | -0.04 | from the point of view of Earth's orbit | | | | orange to red | | or center of gravity | 1.23 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 5340 | An old subgiant disk star (K2 IIIp, mv = 0.06) about 11 pc distant. | | II | |
Beta Aquarii | 21 31 33.4 | G0Ib | -05 34 16 | Milky Way | greater than 1000 Kelvin | | | | naked eye star | | 2.91 | from the point of view of Earth's orbit | | | | yellowish | | or center of gravity | 0.83 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 8232 | | | I | |
Beta Arae | 17 25 17.9 | K3Ib-IIa | -55 31 47 | Milky Way | 3600 to 5000 K | | | | naked eye star | | 2.85 | from the point of view of Earth's orbit | | | | orange to red | | or center of gravity | 1.46 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 6461 | | | I | |
Beta Camelopardalis | 05 03 25.1 | G0Ib | +60 26 32 | Milky Way | greater than 1000 Kelvin | | | | naked eye star | | 4.03 | from the point of view of Earth's orbit | | | | yellowish | | or center of gravity | 0.92 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 1603 | | | I | |
Beta Cancri | 8 16 30.9 | K4IIIBa0.5 | + 9 11 8 | Milky Way | 3600 to 5000 K | | | | naked eye star | | 3.52 | from the point of view of Earth's orbit | | | | orange to red | | or center of gravity | 1.48 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 3249 | | | III | |
Beta Ceti | 0 43 35.3 | K0IIICH-1H,K-0 | -17 59 12 | Milky Way | 3600 to 5000 K | | | | naked eye star | | 2.04 | from the point of view of Earth's orbit | | | | orange to red | | or center of gravity | 1.02 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 188 | | | III | |
Beta Crucis | 12 47 43.3 | B0.5III | -59 41 19 | Milky Way | 11000 to 28000 K | | | | naked eye star | | 1.25 | from the point of view of Earth's orbit | | | | blue-white | | or center of gravity | -0.23 | | He I | | | | | | | | | | | | | brighter than 5 | | | | | | HR 4853 | | | III | |
Beta Delphini | 20 37 32.9 | F5IV | +14 35 43 | Milky Way | 6000 to 7500 K | | | | naked eye star | | 3.63 | from the point of view of Earth's orbit | | | | yellow-white | | or center of gravity | 0.44 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 7882 | | | IV | |
Beta Herculis | 16 30 13.1 | G7IIIa | +21 29 22 | Milky Way | 5000 to 6000 K | | | | naked eye star | | 2.77 | from the point of view of Earth's orbit | | | | yellowish | | or center of gravity | 0.94 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 6148 | | | III | |
Beta Hydri | 0 25 45.3 | G2IV | -77 15 16 | Milky Way | 5000 to 6000 K | | | | naked eye star | | 2.80 | from the point of view of Earth's orbit | | | | yellowish | | or center of gravity | 0.62 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 98 | | | IV | |
Beta Librae | 15 17 0.3 | B8V | -9 22 59 | Milky Way | 11000 to 28000 K | | | | naked eye star | | 2.61 | from the point of view of Earth's orbit | | | | blue-white | d | or center of gravity | -0.11 | | He I | | | | | | | | | | | | | brighter than 5 | | | | | | HR 5685 | | | V | |
Beta Trianguli | 2 9 32.5 | A5II | +34 59 14 | Milky Way | 10000 K | | | | naked eye star | | 3.00 | from the point of view of Earth's orbit | | | | white | | or center of gravity | 0.14 | | H I | | | | | | | | | | | | | brighter than 5 | | | | | | HR 622 | | | II | |
Beta Volantis | 8 25 44.3 | K1III | -66 8 13 | Milky Way | 3600 to 5000 K | | | | naked eye star | | 3.77 | from the point of view of Earth's orbit | | | | orange to red | | or center of gravity | 1.13 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 3347 | | | III | |
Canopus | 06 23 57.2 | F0II | -52 41 44 | Milky Way | 6000 to 7500 K | | | | naked eye star | | -0.72 | from the point of view of Earth's orbit | | | | yellow-white | | or center of gravity | 0.15 | 55 pc | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 2326 | A supergiant, the second brightest star in the southern sky. | | I | |
Canum Venaticorum | 12 56 1.6 | A0pSiEuHg | +38 19 6 | Milky Way | 10000 K | | | | naked eye star | | 2.90 | from the point of view of Earth's orbit | | | | white | | or center of gravity | -0.12 | | H I | | | | | | | | | | | | | brighter than 5 | | | | | | HR 4915 | | | | |
Capella | 05 16 41.3 | G5IIIe+G0III | +45 59 53 | Milky Way | 5000 to 6000 K | 104.023 days | | | naked eye star | | 0.08 | from the point of view of Earth's orbit | | | | yellowish | | or center of gravity | 0.80 | 13 pc | | | | | | | | | | | | | | brighter than 5 | | | | | | Alpha Aurigae | The sixth brightest star in the night sky, consists of two yellow giants. A spectroscopic triple (F8-G0 III, G5 III, M5 V) (1974 parallax 0'.079). It has a high lithium content and a nearly circular orbit. It may be an X-ray source. | | III | |
Delta Capricorni | 21 47 02.3 | Amv | -16 07 38 | Milky Way | 10000 K | | | | naked eye star | | 2.87 | from the point of view of Earth's orbit | | | | white | | or center of gravity | 0.29 | | H I | | | | | | | | | | | | | brighter than 5 | | | | | | HR 8322 | | | | |
Delta Crateris | 11 19 20.4 | G8III-IV | -14 46 43 | Milky Way | 5000 to 6000 K | | | | naked eye star | | 3.56 | from the point of view of Earth's orbit | | | | yellowish | | or center of gravity | 1.12 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 4382 | | | III | |
Delta Scuti | 18 42 16.3 | F2IIIp<04>Del | -09 03 09 | Milky Way | 6000 to 7500 K | | | | naked eye star | | 4.72 | from the point of view of Earth's orbit | | | | yellow-white | | or center of gravity | 0.35 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 7020 | | | III | |
Deneb | 20 41 25.8 | A2Iae | +45 16 49 | Milky Way | 10000 K | | | | naked eye star | | 1.25 | from the point of view of Earth's orbit | | | | white | | or center of gravity | 0.09 | 430 pc | H I | | | | | | | | | | | | | brighter than 5 | | | | | | HR 7924 | An A2 Ia supergiant at the head of the Northern Cross. Most distant first-magnitude star. | | | |
Epsilon Pegasi | 21 44 11.1 | K2Ib | +9 52 30 | Milky Way | 3600 to 5000 K | | | | naked eye star | | 2.39 | from the point of view of Earth's orbit | | | | orange to red | | or center of gravity | 1.53 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 8308 | | | I | |
Epsilon Sagittarii | 18 24 10.3 | B9.5III | -34 23 5 | Milky Way | 11000 to 28000 K | | | | naked eye star | | 1.85 | from the point of view of Earth's orbit | | | | blue-white | | or center of gravity | -0.03 | | He I | | | | | | | | | | | | | brighter than 5 | | | | | | HR 6879 | | | III | |
Epsilon Ursae Majoris | 12 54 1.7 | A0pCr | +55 57 35 | Milky Way | 10000 K | | | | naked eye star | | 1.77 | from the point of view of Earth's orbit | | | | white | | or center of gravity | -0.02 | | H I | | | | | | | | | | | | | brighter than 5 | | | | | | HR 4905 | | | | |
Eta Piscium | 1 31 28.9 | G7IIIa | +15 20 45 | Milky Way | 5000 to 6000 K | | | | naked eye star | | 3.62 | from the point of view of Earth's orbit | | | | yellowish | | or center of gravity | 0.97 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 437 | | | III | |
Fomalhaut | 22 57 39.0 | A3 V | -29 37 20 | Milky Way | 10000 K | | | | naked eye star | | 1.16 | from the point of view of Earth's orbit | | | | white | d | or center of gravity | 0.09 | 7 pc | H I | | | | | | | | | | | | | brighter than 5 | | | | | | HR 8728 | An A star. The brightest star in the constellation Piscis Austrinus. | | V | |
Gamma Corvi | 12 15 48.3 | B8IIIpHgMn | -17 32 31 | Milky Way | 11000 to 28000 K | | | | naked eye star | | 2.59 | from the point of view of Earth's orbit | | | | blue-white | | or center of gravity | -0.11 | | He I | | | | | | | | | | | | | brighter than 5 | | | | | | HR 4662 | | | III | |
Gamma Draconis | 17 56 36.3 | K5III | +51 29 20 | Milky Way | 3600 to 5000 K | | | | naked eye star | | 2.23 | from the point of view of Earth's orbit | | | | orange to red | | or center of gravity | 1.52 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 6705 | | | III | |
Gamma Microscopii | 21 1 17.4 | G6III | -32 15 28 | Milky Way | 5000 to 6000 K | | | | naked eye star | | 4.67 | from the point of view of Earth's orbit | | | | yellowish | | or center of gravity | 0.89 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 8039 | | | III | |
Gamma Normae | 16 19 50.3 | G8III | -50 09 20 | Milky Way | 5000 to 6000 K | | | | naked eye star | | 4.02 | from the point of view of Earth's orbit | | | | yellowish | | or center of gravity | 1.08 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 6072 | | | III | |
Gamma Sagittae | 19 58 45.3 | M0III | +19 29 32 | Milky Way | greater than 1000 Kelvin | | | | naked eye star | | 3.47 | from the point of view of Earth's orbit | | | | | | or center of gravity | 1.57 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 7635 | | | III | |
Gamma Velorum | 8 9 31.9 | WC8+O7.5e | -47 20 12 | Milky Way | greater than 1000 Kelvin | 78.5 days | | | triple star | | 1.78 | from the point of view of Earth's orbit | | | | | | or center of gravity | -0.22 | 400 pc | | 2000 km s-1 | up to 50000 K | | | | half the stars in the solar neighborhood are members of star systems | | | | | | Mv = - 5.6 | brighter than 5 | | | | He I, He II, C II, C III or C IV | | HR 3207 | A triple system (WC8, B1 IV, O9 I) embedded in the Gum Nebula. It is the brightest Wolf-Rayet star in the sky. | | | 3 |
HR 4247 | 10 53 18.6 | K0III-IV | +34 12 53 | Milky Way | 3600 to 5000 K | | | | naked eye star | | 3.83 | from the point of view of Earth's orbit | | | | orange to red | | or center of gravity | 1.04 | | | | | | | | | | | | | | | brighter than 5 | | | | | | | | | III | |
Mira | | M star, R star, or N star | | disk | greater than 1000 Kelvin | | | | naked eye star | 0.2 magnitudes or greater | | from the point of view of Earth's orbit | | some difficulty in distinguishing between various kinds | | | | or center of gravity | | 70 pc | | | | | Mira | -has source: Hopkins, J. 1976 Glossary of Astronomy and Astrophysics, University of Chicago Press | half the stars in the solar neighborhood are members of star systems | | | 331 days | | David Fabricius | | brighter than 5 | | - R, S, T, U, V, W, X, Y, or Z and the genitive of the latin constellation name
- RR, RS, RT, RU, RV, RW, RX, RY, or RZ and the genitive of the latin constellation name when the single letter designations are exhausted
- AA...AZ, BB...BZ, etc. (omitting J), which ends with QQ...QZ and the genitive of the latin constellation namewhen the RR...RZ designations are exhausted
- V 335, V 336, etc., when the double letter designations are exhausted
| within a period of decades | | | omicron Cet | A irregular long-period intrinsic variable. It was named Mira ("wonderful") in 1596 by Fabricius, who made the first recorded observations of its brightness fluctuations. Mira is a double star with a faint B companion which is itself variable. | 1596 | III | 2 |
Nu Octantis | 21 41 28.6 | K0III | -77 23 24 | Milky Way | 3600 to 5000 K | | | | naked eye star | | 3.76 | from the point of view of Earth's orbit | | | | orange to red | | or center of gravity | 1.00 | | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 8254 | | | III | |
Polaris | 2 31 50.5 | F7:Ib-IIv | +89 15 51 | disk | 6000 to 7500 K | | | | binary star | 0.2 magnitudes or greater | 2.02 | from the point of view of Earth's orbit | | some difficulty in distinguishing between various kinds | Baade (1944) | yellow-white | | or center of gravity | 0.60 | 330 light-years | | | | | delta Cephei | | half the stars in the solar neighborhood are members of star systems | | F8 Ib | 3.97 days | | | <Mv> = -0.5 to -6 | brighter than 5 | | - R, S, T, U, V, W, X, Y, or Z and the genitive of the latin constellation name
- RR, RS, RT, RU, RV, RW, RX, RY, or RZ and the genitive of the latin constellation name when the single letter designations are exhausted
- AA...AZ, BB...BZ, etc. (omitting J), which ends with QQ...QZ and the genitive of the latin constellation namewhen the RR...RZ designations are exhausted
- V 335, V 336, etc., when the double letter designations are exhausted
| within a period of decades | | The star that lies near the direction in the sky toward which the North Pole of the Earth points. | alpha UMi | A supergiant F8 Ib, F3 V visual binary, with an orbital period of thousands of years. The primary (a Cepheid with a pulsation period of 3.97 days) is itself a single-lined spectroscopic double with a period of 29.6 years. There are at least two more faint (12th mag) components of the system. | | I | 2 |
Pollux | 7 45 18.9 | K0IIIb | +28 1 34 | Milky Way | 3600 to 5000 K | | | | naked eye star | | 1.14 | from the point of view of Earth's orbit | | | | orange to red | | or center of gravity | 1.00 | 11 pc | | | | | | | | | | | | | | brighter than 5 | | | | | | HR 2990 | A K0 III star. | | II | |
Procyon | 07 39 18.1 | F5 IV-V | +05 13 30 | Milky Way | 6000 to 7500 K | 40 years | | | naked eye star | | 0.38 | 0.283 | | | | yellow-white | | or center of gravity | 0.42 | 3.5 pc | | | | | | | half the stars in the solar neighborhood are members of star systems | | | | | | | brighter than 5 | | | | | | HR 2943 | One of the nearest stars, it is the eighth brightest star. An F star. It is a visual binary; its companion is a DF8 white dwarf. | | IV | 2 |
Rigel | 05 14 32.2 | B8 Iae | -08 12 06 | Milky Way | 11000 to 28000 K | | | | naked eye star | | 0.12 | from the point of view of Earth's orbit | | | | blue-white | | or center of gravity | -0.03 | 900 light-years | He I | | | | | | | | | | | | | brighter than 5 | | | | | | HR 1713 | A blue supergiant. It is a multiple star. The seventh brightest star in the night sky. | | I | |
Sirius | 6 45 8.9 | A1Vm | -16 42 58 | Milky Way | 10000 K | 49.9 years | | | binary star | | -1.46 | from the point of view of Earth's orbit | | | | white | d | or center of gravity | 0.00 | 8.6 light-years | H I | | | | | | half the stars in the solar neighborhood are members of star systems | | | | | | | brighter than 5 | | | | | | HR 2491 | The brightest star in the sky. Its companion (Sirius B) is a white dwarf of about 0.96 Msun but only about 0.03 Rsun, the nearest white dwarf to Earth. | | V | 2 |
Spica | 13 25 11.5 | B1III-IV+B2V | -11 9 41 | Milky Way | 11000 to 28000 K | 4.01452 days | | i = 65° | naked eye star | | 0.98 | from the point of view of Earth's orbit | e = 0.146 | | | blue-white | | or center of gravity | -0.23 | 80 pc | He I | | | | | | half the stars in the solar neighborhood are members of star systems | | | | | | | brighter than 5 | | | | | | HR 5056 | A double-lined spectroscopic binary (B1.5 V, late B). Component A (10.9 Msun) is a beta Cephei star which seems to be near core hydrogen exhaustion. | | III | 2 |
Vega | 18 36 56.2 | A0Va | +38 47 01 | Milky Way | 10000 K | | | | naked eye star | | 0.03 | from the point of view of Earth's orbit | | | | white | d | or center of gravity | 0.00 | 25 light-years | H I | | | | | | | | | | | | | brighter than 5 | | | | | | HR 7001 | The fifth brightest star in the night sky. | | V | |
Zeta Puppis | 8 3 35.0 | O5Iaf | -40 0 11 | Milky Way | 35000 K | | very high | | naked eye star | | 2.25 | from the point of view of Earth's orbit | | | | blue-white | | or center of gravity | -0.26 | | He II | | | rare | | | | 3 to 6 million years | | | | | | brighter than 5 | | | | | | HR 3165 | | | I | |