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LEDA, not PGC as it has only has about 73,000 objects
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| size_v = 0.676′ × 0.457′
| size_v = 0.676′ × 0.457′
| notes =
| notes =
| names = NGC 7840 , PGC 1345780
| names = NGC 7840 , LEDA 1345780
| references =
| references =
}}
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Revision as of 17:04, 19 June 2020

NGC 7840
Sloan Digitalised Sky Survey image of NGC 7840, spanning 2.4' by 2.4'.
SDSS image of NGC 7840
Observation data
ConstellationPisces[1][2]
Right ascension00h 07m 09s[1]
Declination±08° 23′ 01″[1]
Apparent magnitude (V)15[1]
Characteristics
TypeS?[1]
Apparent size (V)0.676′ × 0.457′
Other designations
NGC 7840 , LEDA 1345780

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.[3] One observing guide recommended a telescope with a least 300mm aperture for observations.[3]

See also

References

  1. ^ a b c d e f Celestial Atlas, "NGC Objects: NGC 7800 - 7840 ", Courtney Seligman, March 2010 (accessed 2010-10-27)
  2. ^ WikiSky, "NGC 7840" (accessed 2010-10-17)
  3. ^ 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.
  • Media related to NGC 7840 at Wikimedia Commons