NGC 1003 information

NGC 1003
NGC 1003
	NGC 1003 from the Hubble Space Telescope
Observation data (J2000 epoch)
Constellation	Perseus
Right ascension	02h 39m 16.893s
Declination	+40° 52′ 20.25″
Redshift	0.002090
Heliocentric radial velocity	624 km/s
Distance	35.9 kly (11.02 kpc)
Group or cluster	NGC 1023 group
Apparent magnitude (B)	12.1
Characteristics
Type	SAcd
Mass	299+28; −26×1010 M☉
Mass/Light ratio	0.70+0.16; −0.15 M☉/L☉
Notable features	Warped disk
Other designations
	NGC 1003, UGC 2137, MCG +07-06-051, PGC 10052

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NGC 1003 is a spiral galaxy at the western edge of the Perseus constellation.^[8] It is located at a distance of about 36 million light years from the Milky Way and is receding with a heliocentric radial velocity of 624 km/s.^[4] This galaxy was discovered by the Anglo-German astronomer William Herschel on October 6, 1784, who described it as "pretty faint, large, extended 90°±, much brighter middle, mottled but not resolved".^[9] It is a member of the NGC 1023 group of galaxies.^[5]

The morphological class of NGC 1003 is SAcd, which means it is an unbarred spiral galaxy (SA) with somewhat loosely-wound spiral arms (cd). It is inclined by an angle of 70° to the line of sight from the Earth, with the major axis aligned along a position angle of 276°. The visual disk of the galaxy shows a substantial warping in the eastern side, turning it almost face on. The estimated star formation rate is 0.40 M_☉·yr⁻¹.^[6] It has a virial mass of 3×10¹² M_☉ and a mass-to-light ratio of 0.7.^[7]

A type Ia supernova^[10] was discovered in the galaxy by F. Zwicky in 1937,^[11] and subsequently designated SN 1937D.

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NGC 1003 information

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SAGES Legacy Unifying Globulars and GalaxieS Survey

NGC 1003
NGC 1003 from the Hubble Space Telescope
Observation data (J2000^[1] epoch)
Constellation	Perseus
Right ascension	02^h 39^m 16.893^s^[2]
Declination	+40° 52′ 20.25″^[2]
Redshift	0.002090^[3]
Heliocentric radial velocity	624 km/s^[4]
Distance	35.9 kly (11.02 kpc)^[4]
Group or cluster	NGC 1023 group^[5]
Apparent magnitude (B)	12.1^[3]
Characteristics
Type	SAcd^[6]
Mass	299+28 −26×10¹⁰^[7] `M`_☉
Mass/Light ratio	0.70+0.16 −0.15^[7] `M`_☉/`L`_☉
Notable features	Warped disk^[6]
Other designations
NGC 1003, UGC 2137, MCG +07-06-051, PGC 10052^[3]