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.

Mynd/Myndskeið:

ESO

Um myndina

Auðkenni:eso0535b
Tegund:Athuganir
Útgáfudagur:4. nóvember 2005
Tengdar fréttatilkynningar:eso0535
Stærð:1789 x 1929 px

Um fyrirbærið

Nafn:NGC 92, Roberts's Quartet
Tegund:Local Universe : Galaxy : Type : Spiral
Local Universe : Galaxy : Grouping : Cluster
Fjarlægð:150 milljón ljósár
Constellation:Phoenix
Flokkur:Galaxies

Myndasnið

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Hnit

Position (RA):0 21 31.71
Position (Dec):-48° 37' 30.08"
Field of view:2.98 x 3.21 arcminutes
Stefna:Norður er 0.3° højre frá lóðréttu

Litir og síur

TíðnisviðSjónauki
Sýnilegt
H-alpha
Very Large Telescope
FORS2

 

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