Subject
- optical observation2
- polarimetry2
- radio astronomy2
- stellar ages2
- supergiant stars2
- surveys2
- trigonometric parallax2
- am stars1
- astronomical object identification1
- astronomical reference materials1
- carbon stars1
- dwarf stars1
- eclipsing binary stars1
- galaxies1
- interstellar reddening1
- m stars1
- milky way galaxy1
- photometric systems1
- planetary nebulae1
- population ii stars1
