Subject
- parallax2
- pulsars2
- standard stars2
- stellar evolutionary models2
- supernovae2
- asteroids1
- b stars1
- bl lacertae objects1
- cataclysmic variable stars1
- catalogs1
- diffuse molecular clouds1
- galactic plane1
- hertzsprung russell diagram1
- high-velocity stars1
- intergalactic medium1
- meridian circles1
- molecular physics1
- north galactic pole1
- observational astronomy1
- optical observation1
