NGC 92 in H-alpha

The largest member of the galaxy group known as Robert''s Quartet is NGC 92, a spiral Sa galaxy with an unusual appearance. One of its arms, about 100,000 light-years long, has been distorted by interactions and contains a large quantity of dust. Using this H-alpha image obtained with FORS2 on the VLT, astronomers were able to study the properties of regions of active star formation ("HII regions"). They found more than 200 of such regions in NGC 92, with a size between 500 and 1,500 light-years.

Crédit:

ESO

À propos de l'image

Identification:eso0535b
Type:Observation
Date de publication:4 novembre 2005
Communiqués de presse en rapport:eso0535
Taille:1789 x 1929 px

À propos de l'objet

Nom:NGC 92, Roberts's Quartet
Type:Local Universe : Galaxy : Type : Spiral
Local Universe : Galaxy : Grouping : Cluster
Distance:150 million années lumière
Constellation:Phoenix
Catégorie:Galaxies

Formats des images

Grand JPEG
1,6 Mio
JPEG taille écran
426,4 Kio

Fonds d'écran

1024x768
303,7 Kio
1280x1024
553,8 Kio
1600x1200
882,6 Kio
1920x1200
1,1 Mio
2048x1536
1,4 Mio

Coordinates

Position (RA):0 21 31.71
Position (Dec):-48° 37' 30.08"
Field of view:2.98 x 3.21 arcminutes
Orientation:North is 0.3° right of vertical

Couleurs & filtres

DomaineTélescope
Visible
H-alpha
Very Large Telescope
FORS2

 

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