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Names SDSS J1226+2152, MCS J1226.8+2153, SGAS J122651.3+215220
Right Ascension (2000.0) 12:26:51.3
Declination +21:52:20
Constellation Coma Berenices
Redshift (z) 0.43 +/-
Heliocentric Radial Velocity 128911 km/s +/-
Distance (esteem) 5,559,000,000 light years
Date (DD/MM/YYYY) 04/04/2022
Exposure time 12,000 seconds (8 x 1500 exposures) with binning mode 1 x 1 and AO-7
CCD Camera SBIG ST-8XE
Telescope Meade Instruments Schmidt-Cassegrain 14" LX200 OTA on 10 Micron GM2000 HPS Mount
Focal length 3556 mm
Diameter 355.6 mm
Focal ratio 10
Field of View 13.3 x 8.9 arcminute
Original scale 0.522 arcsecond / pixel

Palomar Observatory Sky Survey images
POSS
Sloan Digital Sky Survey images
SDSS image

The gravitational arc SGAS J122651.3+215220 has a Redshift (z)= 2.92600 +/- 0.00200 an Heliocentric Radial Velocity of 877193 +/- 60 km/s
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