The "cloverleaf" quasar H 1413+117

Left: The central area of a CCD image of the quadruply lensed quasar H 1413+117 (the Cloverleaf), obtained in red light on 8 March 1988 at the ESO/MPI 2.2 m telescope. The four images are clearly separated; they all belong to the same object. Right: The geometry of the system. The four images of the quasar are called A, B, C and D, in order of decreasing brightness. The distances between them are indicated in arcseconds. (ESO Press Release eso8806; BW)



About the Image

Release date:28 July 1988
Related releases:eso8806
Size:1756 x 849 px

About the Object

Name:Cloverleaf quasar, H 1413+117
Type:Early Universe : Galaxy : Activity : AGN : Quasar
Distance:z=2.56 (redshift)
Category:Quasars and Black Holes

Image Formats

Large JPEG
382.9 KB
Screensize JPEG
160.3 KB

Colours & filters

OpticalMPG/ESO 2.2-metre telescope