Cosmoview Episode 46: Gemini North Spies Ultra-Faint Fossil Galaxy Discovered on Outskirts of Andromeda

An unusual ultra-faint dwarf galaxy has been discovered on the outer fringes of the Andromeda Galaxy thanks to the sharp eyes of an amateur astronomer examining archival data processed by NSF’s NOIRLab’s Community Science and Data Center. Follow-up by professional astronomers using the International Gemini Observatory, a Program of NSF’s NOIRLab, revealed that the dwarf galaxy — Pegasus V — contains very few heavier elements and is likely to be a fossil of the first galaxies.


Images and Videos: International Gemini Observatory/KPNO/NOIRLab/NSF/AURA/K. Pu'uohau-Pummill/Adam Block
Image Processing: T.A. Rector (University of Alaska Anchorage/NSF’s NOIRLab), M. Zamani (NSF’s NOIRLab) & D. de Martin (NSF’s NOIRLab)
Music:Stellardrone - In Time

About the Video

Release date:June 30, 2022, 8 a.m.
Related releases:noirlab2214
Duration:01 m 12 s
Frame rate:29.97

About the Object

Ultra HD (info)


For Broadcasters