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.

Bildnachweis:

ESO

Über das Bild

ID:eso0535b
Typ:Beobachtung
Veröffentlichungsdatum:4. November 2005
Dazugehörige Veröffentlichungen:eso0535
Größe:1789 x 1929 px

Über das Objekt

Name:NGC 92, Roberts's Quartet
Typ:Local Universe : Galaxy : Grouping : Cluster
Local Universe : Galaxy : Type : Spiral
Entfernung:150 Million Lichtjahre
Constellation:Phoenix
Kategorie:Galaxies

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Koordinaten

Position (RA):0 21 31.71
Position (Dec):-48° 37' 30.08"
Field of view:2.98 x 3.21 arcminutes
Orientierung:Die Nordrichtung liegt 0.3° rechts zur Vertikale

Farben & Filter

SpektralbereichTeleskop
Optisch
H-alpha
Very Large Telescope
FORS2