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Subject
- Stars157
- Astronomy36
- History7
- Double stars6
- Proper motion5
- Astronomical photometry4
- Magnitudes4
- Clusters3
- Comets3
- Nebulae3
- Observations3
- Parallax3
- Astrographic catalog and chart2
- Astronomical instruments2
- Astronomical observatories2
- Astrophysics2
- Mathematics2
- Messier, Charles, 1730-18172
- Micrometers (Instruments)2
- Nutation2