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physical object > naked eye object > naked eye star > Alpha Columbae |
Alpha Columbae (HR 1956) | ||||
subject | fact |
Alpha Columbae | has declination -34 04 27 | |
has right ascension 05 39 38.9 | ||
has spectral type B7IVe | ||
has V magnitude 2.64 | ||
is a part of Columba | ||
has synonym HR 1956 | ||
has B-V magnitude -0.12 | ||
is an instance of B star | ||
is an instance of subgiant | ||
is an instance of naked eye star | ||
subgiant | has luminosity class IV | |
B star | has color blue-white | |
has surface temperature 11000 to 28000 K | ||
has absorption line He I | ||
naked eye star | has been observed for many centuries | |
is usually part of asterism | ||
is a part of celestial sphere | ||
is a part of Milky Way | ||
has apparent magnitude brighter than 5 | ||
star | has star surface temperature | |
has B magnitude | ||
has U magnitude | ||
has position on celestial sphere from the point of view of Earth | ||
has parallax from the point of view of Earth's orbit | ||
has proper motion | ||
has radiation at surface which is diffused out from the hotter core | ||
has energy source gravitational contraction and or fusion | ||
has energy production which takes place primarily within the core | ||
has surface density which depends on luminosity class | ||
has absolute magnitude | ||
has age | ||
has catalog star catalog | ||
has material hydrogen, helium | ||
has velocity determined from proper motion and radial velocity | ||
has mass greater than 0.08 the sun's mass | ||
celestial body | has spectra | |
physical object | has location or center of gravity | |
has angular momentum | ||
has momentum | ||
has temperature | ||
has volume | ||
has extent |
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