HST Planetary Camera Images of Core of Peculiar Galaxy Arp 220 (Ground-based image vs. HST)
A ground-based telescopic photograph of the peculiar galaxy Arp 220 (image taken by K. Borne, H. Levison, and R. Lucas at USNO Flagstaff Station, Arizona) shows a curious double-lobed structure. This structure was first interpreted as two galaxies merging together, until subsequent observations with highly sensitive CCD detectors revealed a dust lane down the center which made the galaxy appear double lobed.
A "true-color" image of the central pan of the Arp 220 taken with the WFPC on the Hubble Space Telescope. HST reveals a new complex structure within one arc second of the nucleus. HST reveals a new class of object at the core: gigantic young star clusters which are ten times larger than clusters previously observed. They were probably produced by the collision of two spiral galaxies. Stars are produced at a furious rate from the raw dust and gas supplied by the collision.
About the Image
|Release date:||2 June 1992, 06:00|
|Size:||2785 x 1773 px|
About the Object
|Type:||• Local Universe : Galaxy : Type : Irregular|
• Local Universe : Galaxy : Component : Center/Core
• Galaxies Images/Videos
|Distance:||250 million light years|
Colours & filters
|555 nm||Hubble Space Telescope|
|702 nm||Hubble Space Telescope|
|785 nm||Hubble Space Telescope|
Notes: The right image was taken by K. Borne, H. Levison, and R. Lucas at USNO Flagstaff Station, Arizona.