Astronomy:NGC 257

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Short description: Galaxy in the constellation Pisces
NGC 257
NGC257 - SDSS DR14.jpg
SDSS image of NGC 257
Observation data (J2000 epoch)
ConstellationPisces
Right ascension 00h 48m 01.510s[1]
Declination+08° 17′ 49.45″[1]
Redshift0.017592[2]
Helio radial velocity5274 km/s[2]
Distance219.64 ± 34.73 Mly (67.343 ± 10.649 Mpc)[2]
Apparent magnitude (B)13.7[3]
Characteristics
TypeScd?[2]
Size141,000 ly (43,100 pc)[2][note 1]
Apparent size (V)3.0 × 2.5[2]
Other designations
UGC 493, MGC+01-03-003, PGC 2818

NGC 257 is a spiral galaxy in the Pisces constellation. It was discovered on December 29, 1790, by Frederick William Herschel.[4]

References

Notes

  1. POSS1 103a-O values used.

External links