NGC 428

NGC 428 is a barred spiral galaxy in the constellation of Cetus (The Sea Monster), with its spiral structure distorted and warped, possibly the result of the collision of two galaxies.^[3] There appears to be a substantial amount of star formation occurring within NGC 428 and it lacks well defined arms — a telltale sign of a galaxy merger.^[3] In 2015 the Hubble Space Telescope made a close-up shot of the galaxy with its Advanced Camera for Surveys and its Wide Field and Planetary Camera 2.^[1] The structure of NGC 428 has been compared to NGC 5645.^[4]

NGC 428
Hubble image of NGC 428.
Observation data (J2000.0 epoch)
Constellation	Cetus[1]
Right ascension	01h 12m 55,709s[2]
Declination	+00° 58′ 53.69″[2]
Distance	48 mly[3]
Apparent magnitude (B)	12.1[2]
Characteristics
Type	SAB(s)m[4]
Other designations
NGC 428 • UGC 763 • PGC 4367 • Z 385.28 • MCG + 00-04-36 • IRAS 01103 + 0043 • 2MASX J01125570 + 0058536 • GC 238 • H 2.622 • HIPASS J0112 + 00[2]

Discoveries

NGC428 by Hubble Space Telescope

NGC 428 was discovered by William Herschel in December 1786.^[3] A type Ia supernova designated SN2013ct was discovered May 11, 2013, within the galaxy by Stuart Parker of the Backyard Observatory Supernova Search (BOSS) project in Australia and New Zealand.^[3][5]

Smoker et al. reported in 1996 on the NGC 428 field, with the HI tail and LSB dwarf 0110+008, assessing star formation properties based on molecule density distributions, and concluded that the tail formation most likely originated through tidal interactions between two galaxies.^[6]

Further reading

• H-alpha kinematics of S4G spiral galaxies-II. Data description and non-circular motions
• Comparative internal kinematics of the HII regions in interacting and isolated galaxies: implications for massive star formation modes
• A classical morphological analysis of galaxies in the spitzer survey of stellar structure in galaxies (S4G)
• Kinematics of disk galaxies with known masses of their supermassive black holes. Observations Cherepashchuk, A.; Afanas’ev, V.; Zasov, A.; and Katkov, I. Astronomy Reports, 2010, Vol.54(7), pp. 578–589.

See also

• Galaxy merger
• List of galaxies