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NGC 7840

From Wikipedia, the free encyclopedia

NGC 7840
Sloan Digitalised Sky Survey image of NGC 7840, spanning 2.4' by 2.4'.
SDSS image of NGC 7840
Observation data (J2000 epoch)
ConstellationPisces[1][2]
Right ascension00h 07m 08.79s[3]
Declination+08° 22′ 59.6″[3]
Apparent magnitude (V)15[1]
Characteristics
TypeS?[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

NGC 7840 (2MASS)

References

  1. ^ a b c d 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 c "Search specification: NGC 7840". HyperLeda. Université Claude Bernard Lyon 1. Retrieved 2021-02-12.
  4. ^ 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


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This page was last edited on 30 December 2023, at 20:35
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