File:NGC_0018_SDSS.png · Wikimedia Commons · See Wikimedia Commons
NGC 18
Sign in to saveAlso known as New General Catalogue 18
double star in the constellation of Pegasus
Key facts
- Constellation
- Pegasus
- Right ascension
- 00 09 23.1
- Declination
- +27 ° 43 ′ 55 ″
via Wikipedia infobox
Wikidata facts
- Image
- NGC 0018 SDSS.png
Show 5 more facts
- Commons category
- NGC 18
- catalog code
- NGC 18
- time of discovery or invention
- 1866-10-15
- right ascension
- 2.346233
- declination
- 27.732071
via Wikidata · CC0
~1 min read
Article
NGC 18 is a double star system located in the constellation of Pegasus. It was first recorded by Herman Schultz on 15 October 1866. It was looked for but not found by Édouard Stephan on 2 October 1882. It was independently observed by Guillaume Bigourdan in November 1886.
Both stars are 2528±20 light-years away, and based on this distance have a minimum separation of approximately 2,700 astronomical units, an unusually wide separation for a binary system.
Connections
list of NGC objects (1–1000)
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NGC 241
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NGC 945
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star
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constellation
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astronomical unit
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nebula
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Andromeda Galaxy
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exoplanet
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Pegasus
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star cluster
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binary star
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apparent magnitude
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declination
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Triangulum Galaxy
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right ascension
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New General Catalogue
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galaxy cluster
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