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- apparent magnitude1
- astronomical object identification1
- comets1
- galactic and extragalactic astronomy1
- galaxies1
- hot stars1
- observation1
- observational astronomy3
- solar system astronomy1
- stellar astronomy1
- survey source4
- surveys3
- ultraviolet astronomy2
- ultraviolet sources1
- uv astronomy1
- variable stars1
- white dwarfs1
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