Huchra's lens
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Galaxy
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| ZW 2237+030 | |
|---|---|
| Observation data (J2000 epoch) | |
| Constellation | Pegasus |
| Right ascension | 22h 40m 30s |
| Declination | +3° 21′ 30″ |
| Distance | 400 million light years |
| Characteristics | |
| Type | Sab D [1] |
Huchra's lens is the lensing galaxy of the Einstein Cross (Quasar 2237+30); it is also called ZW 2237+030 or QSO 2237+0305 G. It exhibits the phenomenon of gravitational lensing that was postulated by Albert Einstein when he realized that gravity would be able to bend light and thus could have lens-like effects. The galaxy is named for astronomer John Huchra, a key member of the team that discovered it.[2] [3]
References
[edit ]- ^ SIMBAD, (Y88) G (accessed 2012年03月20日)
- ^ Huchra, J.; et al. (1985). "2237 + 0305: A new and unusual gravitational lens". Astronomical Journal . 90: 691–696. Bibcode:1985AJ.....90..691H. doi:10.1086/113777 .
- ^ Overbye, Dennis (October 13, 2010). "John Huchra Dies at 61; Maps Altered Ideas on Universe". The New York Times. Retrieved 5 January 2012.
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