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An Attempt to determine Photovisual Magnitudes without a Colour-Filter and a Study of the Colours and Magnitudes of the Stars in the Galactic Cluster Messier 7 and its Surroundings. By Åke Wallenquist.
LIBRA 522.19 B655 v.3 pt.4
Available from offsite location
- Format:
- Book
- Author/Creator:
- Bosscha Sterrenwacht (LEMBANG)
- Language:
- English
- Physical Description:
- 52 pages ; 4°
- Place of Publication:
- Bandoeng, 1931.
- OCLC:
- 561728281
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