Subject |
has purpose |
has reference |
has location |
has orbit |
is part of |
has spectra |
is a kind of |
has catalog |
has number of star |
has velocity |
is an instance of |
has diameter |
has synonym |
has discovery date |
has mass |
has image |
has definition |
has distance |
has discoverer |
has age |
has Messier number |
class X globular cluster | | | most are in the halo some are members of the thick disk | elongated, around the galactic center | halo | low abundances of heavy elements | globular cluster | globular cluster catalog | 105 to 106 | very high | | about 100 light-years | | | 104 to 106 Msun | | | | | oldest stellar formation in the Galaxy | |
Messier object | originally to catalog all objects which could be confused with a comet | | or center of gravity | | celestial sphere | | celestial body | Messier catalog | | | | | | | | | an object assigned a number by Charles Messier | from Earth | | | |
M 56 | originally to catalog all objects which could be confused with a comet | NED, SIMBAD | most are in the halo some are members of the thick disk | elongated, around the galactic center | halo | low abundances of heavy elements | | Messier catalog | 105 to 106 | very high | Messier object | about 100 light-years | NGC 6779 | 1779 | 104 to 106 Msun | | | from Earth | Charles Messier | oldest stellar formation in the Galaxy | 56 |