IC 4263
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.[1]
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.[2]
References
[edit]- ^ Courtney Seligman. "Celestial Atlas Table of Contents, IC 4263". Retrieved 25 March 2023..
- ^ "Les données de «Revised NGC and IC Catalog by Wolfgang Steinicke», IC 4200 à 4299". astrovalleyfield.com (in French). Retrieved 6 January 2024.
External links
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