Astronomy:IC 4263
| IC 4263 | |
|---|---|
 The IC 4263 galaxy | |
| Observation data (J2000 epoch) | |
| Constellation | Canes Venatici |
| Right ascension | 13h 28m 33.530s[1] |
| Declination | +46° 55′ 38.27″[1] |
| Redshift | 0.009074[1] |
| Helio radial velocity | 2708 km/s[1] |
| Distance | 141 million |
| Characteristics | |
| Type | SA_B[1] |
| Other designations | |
| UGC 8470, MCG+08-25-007, PGC 47270[1] | |
IC 4263 an edge-on barred spiral galaxy in the constellation Canes Venatici. Its velocity relative to the cosmic microwave background is 2,887 ± 13 km/s, which corresponds to a Hubble distance of 42.6 ± 3.0 Mpc (~139 million light years ). It was discovered by American astronomer James Edward Keeler in 1899.[2]
IC 4263 is class IV in luminosity and has a broad HI 1 line. With a surface brightness of 14.20 mag / am 2, IC 4263 can be described as a low surface brightness (LSB) galaxy. LSB galaxies are diffuse (D) galaxies with a surface brightness less than one magnitude lower than that of the ambient night sky.
To date, six non-redshift measurements give a distance of 40.150 ± 2.601 Mpc (~131 million lightyears), which is within the Hubble distance values.[3]
References
- ↑ 1.0 1.1 1.2 1.3 1.4 1.5 "IC 4263". SIMBAD. Centre de données astronomiques de Strasbourg. http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=IC+4263.
- ↑ "Celestial Atlas Table of Contents, IC 4263". http://cseligman.com/text/atlas/ic42a.htm#ic4263..
- ↑ "Les données de «Revised NGC and IC Catalog by Wolfgang Steinicke», IC 4200 à 4299" (in fr). https://astrovalleyfield.com/AstronomieCompl/NGC%20et%20autres/WolfgangS/IC4200_exc_web.htm.
External links
Coordinates: 
[http://www.wikisky.org/?ra=13.475611111111&de=46.927222222222&zoom=9&show_grid=1&show_constellation_lines=1&show_constellation_boundaries=1&show_const_names=1&show_galaxies=1&img_source=IMG_all 13h 28m 32.2
s, +46° 55′ 38
″]
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