NGC 78

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NGC 78
SDSS image of NGC 78A (bottom right) and 78B (top left)
Observation data (J2000 epoch)
ConstellationPisces
Right ascension00h 20m 27.482s[1]
Declination+00° 50′ 00.96″[1]
Redshift0.018283[2]
Heliocentric radial velocity5079 km/s[2]
Apparent magnitude (B)14.5[3]
Characteristics
TypeSB0/a?(r)[2]
Size84,100 ly (25,790 pc)[2][note 1]
Apparent size (V)1.3 × 0.897[2][note 1]
Other designations
NGC 78A: UGC 193, MGC+00-02-004, PGC 1306[3]
NGC 78B: UGC 194, MGC+00-02-005, PGC 1309[4]

NGC 78 is a pair of galaxies in the constellation Pisces.[2] NGC 78A, which is the more southern galaxy, is a barred spiral galaxy.[2] NGC 78B, which is the more northern galaxy, is an elliptical galaxy.[4] Although the designations NGC 78A and 78B are used today, the designation NGC 78 was formerly used mainly for the northern galaxy.[5]

Discovery

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NGC 78 was discovered no later than 1876 by Carl Frederick Pechüle.[5] It was described as "very faint, small, round" by John Louis Emil Dreyer, the compiler of the New General Catalogue.[5] Because the two galaxies have different recessional velocities, the two galaxies are most likely not interacting.[5]

References

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  1. ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  2. ^ a b c d e f g Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  3. ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  4. ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  5. ^ a b c d Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).

Notes

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  1. ^ a b POSS1 103a-O values used.
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  • Error creating thumbnail: File missing Media related to Lua error in Module:Commons_link at line 62: attempt to index field 'wikibase' (a nil value). at Wikimedia Commons