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.

1990年8月29日 · NGC 7457 is a quiescent galaxy that was picked for its "normality" as an early target for assessing the science performance of HST. The resulting images show, to the surprise of astronomers, that an exceptionally bright and compact core is embedded in the diffuse background of the rest of the galaxy. Based on this new image, the stars in the ...

NGC 7457 is a Spiral Galaxy located in the constellation of Pegasus in the northern hemisphere. NGC 7457's distance from Earth is 43,515,783.91 light years. NGC 7457 is called NGC 7457 in the New General Catalogue (NGC).

NGC 7457 is a Elliptical/Spiral Galaxy in the Pegasus constellation. NGC 7457 is situated north of the celestial equator and, as such, it is more easily visible from the northern hemisphere. Given its visual magnitude of 11.87, NGC 7457 is visible with the help of a telescope having an aperture of 8 inches (200mm) or more.

We construct Schwarzschild orbit-based models of NGC 7457, known as a peculiar low-mass lenticular galaxy. Our best-fitting model successfully retrieves most of the unusual kinematics behaviours of this galaxy, in which, the orbital distribution of stars is …

< NGC List NGC 7457. NGC 7457 is a lenticular galaxy located in the constellation of Pegasus. The NGC is a catalog of 7,840 nebulae, star clusters, and galaxies. Here are the key stats on NGC 7457:

A brief analysis is presented of images of the nearby S0 galaxy NGC 7457 obtained with the HST Planetary Camera. While the galaxy remains unresolved with the HST, the images reveal that any core most likely has r(c) less than 0.052 arcsec.

2018年11月2日 · NGC 7457 is a galaxy in Pegasus about 9 degrees north-northeast of the northwest star (Beta Pegasi) of the Great Square. My reason for taking it was it was an entry in the second Herschel 400 program.

2008年6月6日 · We present Hubble Space Telescope photometry and Keck spectroscopy of globular clusters (GCs) in the nearby S0 galaxy NGC 7457. The V − I color–magnitude diagram of GCs lacks the clear bimodality present in most early-type galaxies; there may be a significant population of intermediate-color objects.

2011年6月24日 · We performed surface photometry of NGC 7457 and compared the galaxy's surface brightness profile with the surface density profile of the GC system. The profiles have similar shapes in the inner 1 arcminute (3.9 kpc), but the GC system profile appears to flatten relative to the galaxy light at larger radii.