UGC 2812
| Galaxie Arp 219/UGC 2812 | |
|---|---|
 | |
| Hubble-Weltraumteleskop (Helligkeit) und Pan-STARRS (Farbe) | |
| AladinLite | |
| Sternbild | Eridanus |
| Position Äquinoktium: J2000.0, Epoche: J2000.0 | |
| Rektaszension | 03h 39m 54,1s[1] |
| Deklination | -02° 07′ 06″ [1] |
| Erscheinungsbild | |
| Helligkeit (B-Band) | 14,4 mag |
| Winkelausdehnung | 1′ × 0,7′ [1] |
| Physikalische Daten | |
| Rotverschiebung | 0,035094 ± 0,000097 [1] |
| Radialgeschwindigkeit | (10521 ± 29) km/s [1] |
| Hubbledistanz vrad / H0 | (468 ± 33) · 106 Lj (143,6 ± 10,1) Mpc [1] |
| Geschichte | |
| Katalogbezeichnungen | |
| UGCA 2812 • PGC 13489 • CGCG 391-024 • MCG +00-10-009 • Arp 219 • VV 495 • | |
UGC 2812 = Arp 219 ist ein interagierendes Galaxienpaar im Sternbild Eridanus. Das Galaxienpaar ist etwa 468 Millionen Lichtjahre von der Milchstraße entfernt. Halton Arp gliederte seinen Katalog ungewöhnlicher Galaxien nach rein morphologischen Kriterien in Gruppen. Diese Galaxie gehört zu der Klasse Galaxien mit angrenzenden Schleifen.
Weblinks
Literatur
- Jeff Kanipe und Dennis Webb: The Arp Atlas of Peculiar Galaxies – A Chronicle and Observer´s Guide, Richmond 2006, ISBN 978-0-943396-76-7
Einzelnachweise
Auf dieser Seite verwendete Medien
Autor/Urheber: Judy Schmidt from USA, Lizenz: CC BY 2.0
A couple of entwined galaxies proceeding with their mergence. The two tails appear to wrap all the way around the left side of the galaxies and connect back where that background spiral appears at the bottom of the image. They'd be off the left and bottom sides of the frame if you could see them, but the exposure wasn't quite long enough to capture such faint features.
This is part of a snapshot / gap filler program for Julianne Dalcanton involving the study of peculiar galaxies which HST had never observed before. Only one filter is available for each, so color must come from elsewhere. In this case, I used the PanSTARRS survey to quickly add some color. You can see that many of the fine details in the image are lacking distinctive colors due to the lower resolution of the color data.
All of the observations from this proposal are available immediately to the public, so it can be fun to poke around. In fact HST took this image only a few hours before I made this image, and less than 24 hours before I posted it here.
Here's a link to the proposal abstract: Establishing HST's Low Redshift Archive of Interacting Systems
Luminosity: ACS/WFC F606W Red: PanSTARRS z Green: PanSTARRS i Blue: PanSTARRS g
North is up.