NGC 4993 - Wikipedia
WEBNGC 4993 (also catalogued as NGC 4994 in the New General Catalogue) is a lenticular galaxy [5] located about 140 million light-years away [2] in the constellation Hydra. [6] It was discovered on 26 March 1789 [7] by William Herschel [6][7] and is …
New General Catalog Objects: NGC 4950 - 4999 - cseligman.com
WEBSep 6, 2021 · The Herschels' descriptions are sufficiently similar that if the positions were the same there would be no doubt that they belong to the same object, and although the error in the NPD is unusual it is not at all rare, so the equality of NGC 4993 and 4994 is considered certain.
APOD: 2017 October 23 - NGC 4993: The Galactic Home of an …
WEBNGC 4993: The Galactic Home of an Historic Explosion Image Credit: NASA & ESA. Explanation: That reddish dot -- it wasn't there before. It's the dot to the upper left of galaxy NGC 4993's center, do you see it?
NGC 4993 - HubbleSite
WEBOct 16, 2017 · The galaxy NGC 4993 is located about 130 million light-years from Earth. On August 17, 2017, the Laser Interferometer Gravitational-Wave Observatory detected gravitational waves from a neutron star collision within this galaxy.
NGC 4993 - Wikiwand
WEBNGC 4993 (also catalogued as NGC 4994 in the New General Catalogue) is a lenticular galaxy [5] located about 140 million light-years away [2] in the constellation Hydra. [6] It was discovered on 26 March 1789 [7] by William Herschel [6] [7] and is …
GW170814: A 30 and 25 solar mass black hole merged, observed ... - Reddit
WEBNGC 4993 (also catalogued as NGC 4994) is an elliptical galaxy in the constellation Hydra, discovered in 1789 by Wilhelm Herschel. In August 2017, astronomers reported that a short gamma-ray burst, of the sort conjectured to be emitted in the collision of two neutron stars, was detected in this galaxy.
NGC 4994 - Galaxy - SKY-MAP - wikisky.org
WEBNGC 4994. Contents. Images; Related articles; Related links; Groups; Images. Upload your image DSS Images Other Images Related articles. Redshift-Distance Survey of Early-Type Galaxies: Spectroscopic Data We present central velocity dispersions and Mg2 line indicesfor an all-sky sample of ~1178 elliptical and S0 galaxies, of which 984had no ...
NGC 4993 - Wikidata
WEBNGC 4994. catalog. New General Catalogue. 1 reference. stated in. SIMBAD. AM 1307-230. catalog. A catalogue of southern peculiar galaxies and associations. 1 reference. stated in. SIMBAD. ESO-LV 508-0180. catalog. The surface photometry catalogue of the ESO-Uppsala galaxies. 1 reference. stated in. …
Category : NGC 4993 - Wikimedia
WEBMay 10, 2018 · Media in category "NGC 4993" The following 16 files are in this category, out of 16 total. ApJL 848 L12 Fig2 Timeline of the discovery of GW170817, GRB 170817A, AT 2017gfo.svg 1,720 × 2,368; 1.48 MB. AT2017gfo (SSS17a) location within NGC 4993 galaxy.jpg 1,800 × 1,088; 651 KB.
DOCdb - NGC 4994
WEBDOCdb. Deep Sky Observer's Companion – the online database . Welcome, guest! If you've already registered, please log in,. or register an observer profile for added ...