Arp 22 stretches out

NGC 4027, also known as Arp 22, stretches its single extended spiral arm in this face-on image. Located about 75 million light-years away in the constellation of Corvus (the Crow), this barred spiral galaxy is identified as a peculiar galaxy by this extended arm, thought to be the result of a collision with another galaxy millions of years ago — most likely a small galaxy known as NGC 4027A. NGC 4027 is part of the NGC 4038 Group, a group of galaxies that also contains the famous distorted couple known as the Antennae Galaxies (see eso0209 and heic0615).

This image is based on data collected with the ESO Faint Object Spectrograph and Camera (EFOSC) attached to the 3.58-metre New Technology Telescope (NTT) at the ESO La Silla Observatory in Chile. The data were collected through three broadband filters (B, V and R) and two narrowband filters (Hα and doubly ionised oxygen).

Crédit:

ESO

À propos de l'image

Identification:potw1030a
Type:Observation
Date de publication:26 juillet 2010 10:00
Taille:975 x 949 px

À propos de l'objet

Nom:NGC 4027
Type:Unspecified : Galaxy : Type : Spiral
Distance:75 million années lumière
Constellation:Corvus
Catégorie:Galaxies

Formats des images

Grand JPEG
203,9 Kio
JPEG taille écran
153,7 Kio

Fonds d'écran

1024x768
165,6 Kio
1280x1024
278,1 Kio
1600x1200
409,2 Kio
1920x1200
486,2 Kio
2048x1536
650,1 Kio

Coordinates

Position (RA):11 59 30.21
Position (Dec):-19° 15' 54.79"
Field of view:3.91 x 3.80 arcminutes
Orientation:North is 0.6° right of vertical

Couleurs & filtres

DomaineLongueur d'ondeTélescope
Visible
B
445 nmNew Technology Telescope
EFOSC2
Visible
Oiii
500 nmNew Technology Telescope
EFOSC2
Visible
V
551 nmNew Technology Telescope
EFOSC2
Visible
R
658 nmNew Technology Telescope
EFOSC2
Visible
H-alpha
1.63 μmNew Technology Telescope
EFOSC2