NGC 222 | |
---|---|
Observation data (J2000 epoch) | |
Right ascension | 00h 40m 43.7s [1] |
Declination | −73° 23′ 08″ [1] |
Distance | 210000 ly |
Apparent magnitude (V) | 12.64 [2] |
Apparent dimensions (V) | 1.2′ × 1.2′ [2] |
Physical characteristics | |
Mass | 6.2×103 [3] M☉ |
Estimated age | 83 Myr [3] |
Other designations | ESO 029-SC 004. [1] |
Associations | |
Constellation | Tucana |
NGC 222 is an open cluster located approximately 210,000 light-years from the Sun in the Small Magellanic Cloud. It is located in the constellation Tucana. It was discovered on August 1, 1826 by James Dunlop. [4]
The Jewel Box is an open cluster in the constellation Crux, originally discovered by Nicolas Louis de Lacaille in 1751–1752. This cluster was later named the Jewel Box by John Herschel when he described its telescopic appearance as "...a superb piece of fancy jewellery". It is easily visible to the naked eye as a hazy star some 1.0° southeast of the first-magnitude star Mimosa. This hazy star was given the Bayer star designation "Kappa Crucis", from which the cluster takes one of its common names. The modern designation Kappa Crucis has been assigned to one of the stars in the base of the A-shaped asterism of the cluster
NGC 3532, also commonly known as the Pincushion Cluster, Football Cluster, the Black Arrow Cluster, or the Wishing Well Cluster, is an open cluster some 405 parsecs from Earth in the constellation Carina. Its population of approximately 150 stars of 7th magnitude or fainter includes seven red giants and seven white dwarfs. On 20 May 1990 it became the first target ever observed by the Hubble Space Telescope. A line from Beta Crucis through Delta Crucis passes somewhat to the north of NGC 3532. The cluster lies between the constellation Crux and the larger but fainter "False Cross" asterism. The 4th-magnitude Cepheid variable star x Carinae appears near the southeast fringes, but it lies between the Sun and the cluster and is not a member of the cluster.
NGC 4244, also known as Caldwell 26, is an edge-on loose spiral galaxy in the constellation Canes Venatici, and is part of the M94 Group or Canes Venatici I Group, a galaxy group relatively close to the Local Group containing the Milky Way. In the sky, it is located near the yellow naked-eye star, Beta Canum Venaticorum, but also near the barred spiral galaxy NGC 4151 and irregular galaxy NGC 4214.
NGC 176 is an open cluster around 3.5 million light-years away in the constellation Tucana. It is located within the Small Magellanic Cloud. It was discovered on August 12, 1834, by John Herschel.
NGC 220 is an open cluster located approximately 210,000 light-years from the Sun in the Small Magellanic Cloud. It is located in the constellation Tucana. It was discovered on August 12, 1834 by John Herschel.
NGC 361 is an open cluster in the Small Magellanic Cloud. It is located in the constellation Tucana. It was discovered on September 6, 1826, by James Dunlop. It was described by Dreyer as "very very faint, pretty large, very little extended, very gradually brighter middle." At an aperture of 31.0 arcseconds, its apparent V-band magnitude is 12.24, but at this wavelength, it has 0.40 magnitudes of interstellar extinction.
NGC 4457 is an intermediate spiral galaxy located about 55 million light-years away in the constellation of Virgo. It is also classified as a LINER galaxy, a class of active galaxy defined by their spectral line emissions. NGC 4457 Is inclined by about 33°. It was discovered by astronomer William Herschel on February 23, 1784. Despite being listed in the Virgo Cluster Catalog as VCC 1145, NGC 4457 is a member of the Virgo II Groups which form an extension of the Virgo cluster.
NGC 4683 is a barred lenticular galaxy located about 170 million light-years away in the constellation Centaurus. It was discovered by astronomer John Herschel on June 8, 1834. NGC 4683 is a member of the Centaurus Cluster.
NGC 4709 is an elliptical galaxy located in the constellation Centaurus. It is considered to be a member of the Centaurus Cluster and is the dominant member of a small group of galaxies known as "Cen 45" which is currently merging with the main Centaurus Cluster even though the two subclusters' line of sight redshift velocities differ by about 1500 km/s. NGC 4709 was discovered by astronomer James Dunlop on May 7, 1826.
NGC 4743 is a lenticular galaxy located about 145 million light-years away in the constellation Centaurus. NGC 4743 was discovered by astronomer John Herschel on June 8, 1834. It is a member of the Centaurus Cluster.
NGC 4744 is a barred lenticular galaxy located about 160 million light-years away in the constellation Centaurus. NGC 4744 was discovered by astronomer John Herschel on June 8, 1834. It is a member of the Centaurus Cluster.
NGC 3312 is a large and highly inclined spiral galaxy located about 194 million light-years away in the constellation Hydra. The galaxy was discovered by astronomer John Herschel on March 26, 1835. It was later rediscovered by astronomer Guillaume Bigourdan on February 26, 1887. NGC 3312 was later listed and equated with IC 629 because the two objects share essentially the same celestial coordinates. NGC 3312 is the largest spiral galaxy in the Hydra Cluster and is also classified as a LINER galaxy.
NGC 2527 is an open cluster in the constellation Puppis. It was discovered by William Herschel on December 9, 1784. The cluster was also observed by John Herschel on January 7, 1831. He also observed it on February 5, 1837, identifying it as a different object, which was catalogued as NGC 2520. It is a poor cluster and with no central concentration, with Trumpler class III1p.
NGC 4060 is a lenticular galaxy located 320 million light-years away in the constellation Coma Berenices. It was discovered by astronomer Albert Marth on March 18, 1865 and is a member of the NGC 4065 Group which is part of the Coma Supercluster.
NGC 4065 is an elliptical galaxy located 300 million light-years away in the constellation Coma Berenices. The galaxy was discovered by astronomer William Herschel on April 27, 1785. It was then rediscovered by John Herschel on April 29, 1832 and was listed as NGC 4057. NGC 4065 is the brightest member of the NGC 4065 Group.
NGC 4066 is an elliptical galaxy located 340 million light-years away in the constellation Coma Berenices. The galaxy was discovered by astronomer William Herschel on April 27, 1785. NGC 4066 is a member of the NGC 4065 Group.
NGC 4070 is an elliptical galaxy located 340 million light-years away in the constellation Coma Berenices. NGC 4070 was discovered by astronomer William Herschel on April 27, 1785. It was rediscovered by John Herschel on April 29, 1832 and was listed as NGC 4059. The galaxy is a member of the NGC 4065 Group.
NGC 4092 is a spiral galaxy located 310 million light-years away in the constellation Coma Berenices. It was discovered by astronomer Heinrich d'Arrest on May 2, 1864. NGC 4092 is a member of the NGC 4065 Group and hosts an AGN.
NGC 4380 is an unbarred spiral galaxy located in the constellation of Virgo. Located about 52.2 million light-years away, is a member of the Virgo Cluster, a large galaxy cluster. It was discovered on March 10, 1826, by the astronomer John Herschel.
NGC 911 is an elliptical galaxy located in the constellation Andromeda about 258 million light years from the Milky Way. It was discovered by French astronomer Édouard Stephan in 1878. It is a member of the galaxy cluster Abell 347.