Subject
- kron-cousins photometry4
- late-type stars7
- line intensities16
- m stars8
- magellanic clouds6
- medium band photometry9
- metallicity28
- milky way galaxy10
- molecular clouds1
- morgan-keenan classification1
- multiple stars21
- narrow band photometry1
- o stars1
- open star clusters20
- optical astronomy[remove]162
- parallax1
- photographic photometry2
- photometry122
- planetary nebulae2
- population ii stars1