Andromeda Galaxy with DESI Overlay and Spectrum
The disk of the Andromeda Galaxy (M31), which spans more than 3 degrees across the sky, is targeted by a single DESI pointing, represented by the large circular overlay. The smaller circles within this overlay represent the regions accessible to each of the 5000 DESI robotic fiber positioners. In this sample, the 5000 spectra that were simultaneously collected by DESI include not only stars within the Andromeda Galaxy, but also distant galaxies and quasars. The example DESI spectrum that overlays this image is of a distant quasar that is 11 billion years old.
Credit:DESI collaboration/DESI Legacy Imaging Surveys/LBNL/DOE & KPNO/CTIO/NOIRLab/NSF/AURA/unWISE
About the Image
Id: | noirlab2117b |
Type: | Artwork |
Release date: | May 17, 2021, 6:45 a.m. |
Related releases: | noirlab2117 |
Size: | 13910 x 7576 px |
About the Object
Name: | M31 |
Category: | Illustrations |
Image Formats
Large JPEG
28.2 MB
Publication TIFF 10K
91.9 MB
Publication TIFF 4K
18.8 MB
Publication JPEG
4.5 MB
Screensize JPEG
358.4 KB