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Subject
- kron-cousins photometry1
- late-type stars1
- merging galaxies1
- morgan-keenan classification1
- multiple stars1
- north galactic pole1
- observation1
- photographic photometry1
- planetary nebulae1
- radial velocity1
- radio astronomy1
- radio galaxies1
- radio sources1
- star atlases1
- stellar evolution1
- stucture1
- surface photometry1
- ultraviolet images1
- xrb1
- young stellar objects1
