jump to navigation

Ambartsumian’s Knot May 26, 2012

Posted by brunomarshall in Dwarf Elliptical.
Tags: , , , , , ,
trackback

Ambartsumian’s Knot is a dwarf elliptical galaxy in the constellation Ursa Major. It is the small blue dot off the bottom of the eliptical NGC3561A.[2]

The entire system is called Arp 105, or “The Guitar”, because of its overall shape. “The Guitar” as an example of new galaxies being formed as ejections from older galaxies.[4][1]

Ambartsumian’s Knot is located at the end of what appears to be a bridge of matter extending from the elliptical galaxy NGC 3561B (R.A. 11h 11m, Dec. +28° 42′). The latter is interacting with the nearby spiral galaxy NGC 3651A giving rise to a number of tidal tails and tidal dwarf galaxies. [2][3][4]

 The enormously long tidal tail visible to the left (north) of NGC 3651A in the accompanying photo, Arp 105N, stretches out for 100,000 parsecs (325,000 light-years) from the parent galaxy.[2]



Arp 150 lies close to the center of the rich cluster Abell 1185, which lies about 400 million light-years away. [2]

 Credit:

[1]- Stellarium

[2]-http://www.daviddarling.info/encyclopedia/A/Ambartsumians_Knot.html

[3]- Canada-France-Hawaii Telescope

[4]-http://www.beskeen.com/gallery/galaxy/abell1185/abell1185.shtml

Advertisements

Comments»

No comments yet — be the first.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: