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.

Crediti:

ESO

A proposito dell'immagine

Identificazione:eso0535b
Tipo:Osservazione
Data di pubblicazione:04 Novembre 2005
Notizie relative:eso0535
Dimensione:1789 x 1929 px

A proposito delll'oggetto

Nome:NGC 92, Roberts's Quartet
Tipo:Local Universe : Galaxy : Type : Spiral
Local Universe : Galaxy : Grouping : Cluster
Distanza:150 Milione Anni luce
Constellation:Phoenix
Categoria:Galaxies

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Coordinate

Position (RA):0 21 31.71
Position (Dec):-48° 37' 30.08"
Field of view:2.98 x 3.21 arcminutes
Orientazione:Il Nord è a 0.3° a destra della verticale

Colori e filtri

BandaTelescopio
Ottico
H-alpha
Very Large Telescope
FORS2

 

Vedere anche