Global Information9io9 information
| 9io9 | |
|---|---|
 ALMA image of 9io9, showing the magnetic field in the 11 billion light years distant galaxy. | |
| Observation data (J2000 epoch) | |
| Constellation | Cetus |
| Right ascension | 02h 09m 41.27s[1] |
| Declination | +00° 15′ 58.48″[1] |
| Redshift | 0.206 (lensing galaxy) [2] 2.554±0.0002 (lensed galaxy)[3] |
| Distance | 2.5 and 11.1 Gly (770 and 3,400 Mpc)[4] |
| Other designations | |
| G1, G2, HerS J020941.1+001557, HERS1, PJ020941.3 | |
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ASW0009io9 (9io9) is a gravitationally lensed system of two galaxies. The nearer galaxy is approximately 2 billion light-years (610 Mpc) from Earth and is designated SDSS J020941.27+001558.4, while the lensed galaxy is 10 billion light-years (3.1 Gpc) distant and is designated ASW0009io9 (shortened to 9io9).[5][2] It was discovered in January 2014 by a group of citizen scientists, while classifying images on the website Spacewarps.org.[5] The discovery was announced on the BBC television programme Stargazing Live.[5][2]
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