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.

Kilde:

ESO

Om billedet

Id:eso0535b
Type:Observation
Udgivelsesdato:4. november 2005
Relaterede pressemeddelelser:eso0535
Størrelse:1789 x 1929 px

Om objektet

Navn:NGC 92, Roberts's Quartet
Type:Local Universe : Galaxy : Type : Spiral
Local Universe : Galaxy : Grouping : Cluster
Afstand:150 million lysår
Constellation:Phoenix
Kategori:Galaxies

Billedformater

Stor JPEG
1,6 MB
Skrærm JPEG
426,4 KB

Baggrundsbilleder

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

Koordinater

Position (RA):0 21 31.71
Position (Dec):-48° 37' 30.08"
Field of view:2.98 x 3.21 arcminutes
Orientering:Nord er 0.3° droite fra lodret

Farver & filtre

BåndTeleskop
Optisk
H-alpha
Very Large Telescope
FORS2

 

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