Huchra's lens explained

ZW 2237+030
Epoch:	J2000
Constellation Name:	Pegasus
Dist Ly:	400 million light years
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]}

Notes and References

1. SIMBAD, (Y88) G (accessed 2012-03-20)
2. Huchra, J. . et al . 2237 + 0305: A new and unusual gravitational lens . . 10.1086/113777 . 90 . 691–696 . 1985AJ.....90..691H . 1985. free .
3. News: Overbye. Dennis. John Huchra Dies at 61; Maps Altered Ideas on Universe. 5 January 2012. The New York Times. October 13, 2010.