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NGC 1325

Galaxy in the constellation Eridanus

NGC 1325
Hubble Space Telescope image of NGC 1325
Observation data (J2000 epoch)
Constellation	Eridanus
Right ascension	03h 25.576m [1]
Declination	−21° 32′ 38.61″[1]
Heliocentric radial velocity	1,588[2]
Distance	75.0 Mly (23.01 Mpc)h−1 0.73[2]
Grouporcluster	Eridanus cluster[3]
Apparent magnitude (V)	11.5[4]
Characteristics
Type	SBbc[5]
Apparent size (V)	4.47′ × 1.66′[5]
Notable features	Flocculent spiral galaxy
Other designations
IRAS 03221-2143, NGC 1325, UGCA70, PGC 12737, ESO 548-7, MCG -4-9-4[5]
References: [6]

NGC 1325 is a flocculent spiral galaxy situated in the constellation of Eridanus. Located about 75 million light years away,^[2] it is a member of the Eridanus cluster of galaxies,^[3] a cluster of about 200 galaxies. It was discovered by William Herschel on 19 December 1799.

NGC 1325 has a Hubble classification of SBbc, which indicates it is a barred spiral galaxy with moderately wound arms.^[5] Its angular size on the night sky is 4.5' x 1.7'.^[5] The disk of the galaxy is inclined at an angle of 71° with the main axis aligned along a position angle of 232°.^[3] The rotation curve for the galaxy is flat across much of the radius from the core.^[7] The galaxy is moving away from the Milky Way with a heliocentric radial velocity of 1,588 km/s.^[2]

Asupernova was discovered in this galaxy on December 30, 1975 by Justus Dunlap and Y. Dunlap at Corralitos Observatory.^[8] Designated SN 1975S with a magnitude of 14.6,^[9] it was positioned 53″ east and 77″ north of the galactic nucleus. The color of this supernova and the rapid decline of the lightcurve suggest it was a type II supernova.^[10]

A core-collapse supernova designated SN 2021yja was detected in this galaxy on September 8, 2021.^[11] It was initially categorized as a type II, but may instead be a type Ic.^[12]

• Media related to NGC 1325 at Wikimedia Commons