NGC 7840
NGC 7840 | |
---|---|
Observation data (J2000 epoch) | |
Constellation | Pisces[1][2] |
Right ascension | 00h 07m 08.79s[3] |
Declination | +08° 22′ 59.6″[3] |
Apparent magnitude (V) | 15[1] |
Characteristics | |
Type | S?[1] |
Apparent size (V) | 0.676′ × 0.457′ |
Other designations | |
NGC 7840, PGC 1345780[3] |
NGC 7840 is an unbarred spiral galaxy in the constellation Pisces.[1] It is the last numerical entry in the New General Catalogue.
For observing from Earth's surface, it has a magnitude of 15.5 in the early 21st century.[4] One observing guide recommended a telescope with a least 300mm aperture for observations.[4]
See also[]
References[]
- ^ a b c d Celestial Atlas, "NGC Objects: NGC 7800 - 7840 ", Courtney Seligman, March 2010 (accessed 2010-10-27)
- ^ WikiSky, "NGC 7840" (accessed 2010-10-17)
- ^ a b c "Search specification: NGC 7840". HyperLeda. Université Claude Bernard Lyon 1. Retrieved 2021-02-12.
- ^ a b Bakich, Michael E. (2010-07-10). 1,001 Celestial Wonders to See Before You Die: The Best Sky Objects for Star Gazers. Springer Science & Business Media. ISBN 9781441917775.
External links[]
- Media related to NGC 7840 at Wikimedia Commons
Categories:
- Pisces (constellation)
- Unbarred spiral galaxies
- NGC objects
- LEDA objects
- Spiral galaxy stubs