NGC 7457 explained

NGC 7457
Epoch:	J2000
Constellation Name:	Pegasus
Appmag V:	11.87
Appmag B:	11.04^[1]
Type:	SA0^-(rs)?^[2]
H Radial V:	812 km/s

NGC 7457 is an unbarred lenticular galaxy in the constellation Pegasus. NGC 7457 is its New General Catalogue designation. It was discovered by the astronomer William Herschel on 12 September 1784.^[3]

NGC 7457 is estimated to be about 43 million light-years (13.2 megaparsecs) away from the Sun. There are about 201 globular clusters in the galaxy.^[4] The core of NGC 7457 is surprisingly bright and compact, with many stars.^[5]

Notes and References

1. NGC 7457. 2021-03-27.
2. Web site: Results for object NGC 7457 (NGC 7457). NASA/IPAC Extragalactic Database. California Institute of Technology. 28 March 2021.
3. Web site: New General Catalogue objects: NGC 7450 - 7499. Seligman, Courtney. cseligman.com. 2021-03-28.
4. Hargis . Jonathan R. . Rhode . Katherine L. . Strader . Jay . Brodie . Jean P. . The Globular Cluster Population of NGC 7457: Clues to the Evolution of Field S0 Galaxies . The Astrophysical Journal . 1 September 2011 . 738 . 1 . 113 . 10.1088/0004-637X/738/1/113. 1106.5058 . 2011ApJ...738..113H . 5846760 .
5. Web site: Hubble Space Telescope Peers Into Core of Distant Galaxy . HubbleSite.org . en. 29 August 1990.