NGC 1721

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NGC 1721
Galaxy group in Eridanus showing NGC 1721, NGC 1723, NGC 1725, and NGC 1728
Observation data (J2000 epoch)
Constellation	Eridanus
Right ascension	04^h 59^m 17.4^s^[1]
Declination	−11° 07′ 07″ ^[1]
Redshift	0.015010 ^[1]
Helio radial velocity	4 500 ± 9 km/s ^[1]
Galactocentric velocity	4 388 ± 10 km/s ^[1]
Distance	200 Mly (61.3 Mpc) h−1 0.73 ^[1]
Apparent dimensions (V)	36.92 by 17.58 kpc ^[1]
See also: Galaxy, List of galaxies

NGC 1721 is a galaxy in the New General Catalog.

References

↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 "NED results for object NGC 1721". NASA/IPAC Extragalactic Database (NED). Retrieved March 15, 2012.

Coordinates: 04^h 59^m 17.4^s, −11° 07′ 07″

v t e Galaxies

Morphology	Disc galaxy Dwarf galaxy elliptical irregular spheroidal spiral Elliptical galaxy Irregular galaxy barred Lenticular galaxy barred unbarred Ring galaxy Polar Spiral galaxy barred flocculent grand design intermediate Magellanic unbarred cD-galaxy

Structure	Bar Bulge Dark matter halo Disc Galactic halo corona Galactic plane Interstellar medium Protogalaxy Spiral arm Supermassive black hole

Active nuclei	Blazar LINER Quasar Radio galaxy X-shaped Relativistic jet Seyfert galaxy

Energetic galaxies	LAE LIRG Starburst galaxy BCD Pea

Interaction	Field galaxy Galactic tide Galaxy groups and clusters brightest cluster galaxy fossil group Interacting galaxy merger Satellite galaxy Stellar stream Superclusters Walls Void galaxy Voids and supervoids

Lists	Groups and clusters Large quasar groups Nearest galaxies Polar-ring galaxies Ring galaxies Quasars Spiral galaxies Superclusters Voids

See also	Dark galaxy Faint blue galaxy Galaxy formation and evolution Intergalactic dust Intergalactic stars Intergalactic travel

Book:Galaxies Category:Galaxies Portal:Astronomy

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