The ultra-faint dwarf galaxy Pegasus V
noirlab_noirlab2214a June 30th, 2022
Credit: International Gemini Observatory/NOIRLab/NSF/AURAAcknowledgment: Image processing: T.A. Rector (University of Alaska Anchorage/NSF NOIRLab), M. Zamani (NSF NOIRLab) & D. de Martin (NSF NOIRLab)
A unique ultra-faint dwarf galaxy has been discovered in the outer fringes of the Andromeda Galaxy thanks to the sharp eyes of an amateur astronomer examining archival data from the US Department of Energy-fabricated Dark Energy Camera on the Víctor M. Blanco 4-meter Telescope at Cerro Tololo Inter-American Observatory (CTIO) and processed by the Community Science and Data Center (CSDC). Follow-up by professional astronomers using the International Gemini Observatory revealed that the dwarf galaxy — Pegasus V — contains very few heavier elements and is likely to be a fossil of the first galaxies. All three facilities involved are Programs of NSF NOIRLab.
Provider: NOIRLab
Image Source: https://noirlab.edu/public/images/noirlab2214a/
Curator: NSF's NOIRLab, Tucson, AZ, USA
Image Use Policy: Creative Commons Attribution 4.0 International License
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(1992 x 1015)
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- 320 x 163 (35.7 KB)
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Image Details
Position Details
Color Mapping
- ID
- noirlab2214a
- Subject Category
- Subject Name
- Andromeda Galaxy
- Credits
- International Gemini Observatory/NOIRLab/NSF/AURAAcknowledgment: Image processing: T.A. Rector (University of Alaska Anchorage/NSF NOIRLab), M. Zamani (NSF NOIRLab) & D. de Martin (NSF NOIRLab)
- Release Date
- 2022-06-30T08:00:00
- Lightyears
- Redshift
- Reference Url
- https://noirlab.edu/public/images/noirlab2214a/
- Type
- Observation
- Image Quality
- Distance Notes
- Facility
- Gemini North, Gemini North, Gemini North, Gemini North
- Instrument
- GMOS-N, GMOS-N, GMOS-N, GMOS-N
- Color Assignment
- Blue, Green, Green, Red
- Band
- Optical, Optical, Optical, Optical
- Bandpass
- g, g, r, r
- Central Wavelength
- 475, 475, 630, 630
- Start Time
- Integration Time
- Dataset ID
- None, None, None, None
- Notes
- Coordinate Frame
- ICRS
- Equinox
- J2000
- Reference Value
- 349.616228219, 33.3598909354
- Reference Dimension
- 1992.0, 1015.0
- Reference Pixel
- 996.0, 507.5
- Scale
- -4.49050510008e-05, 4.49050510008e-05
- Rotation
- -89.879999999999924
- Coordinate System Projection:
- TAN
- Quality
- Full
- FITS Header
- Notes
- Creator (Curator)
- NSF's NOIRLab
- URL
- https://noirlab.edu
- Name
- Telephone
- Address
- 950 North Cherry Ave.
- City
- Tucson
- State/Province
- AZ
- Postal Code
- 85719
- Country
- USA
- Rights
- Creative Commons Attribution 4.0 International License
- Publisher
- NSF's NOIRLab
- Publisher ID
- noirlab
- Resource ID
- noirlab2214a
- Resource URL
- http://noirlab.edu/public/media/archives/images/original/noirlab2214a.tif
- Related Resources
- Metadata Date
- 2022-06-20T01:31:07-07:00
- Metadata Version
- 1.1
Detailed color mapping information coming soon...
