The hidden engine of NGC 4945

Portrayed in this image is the spiral galaxy NGC 4945, a close neighbour of the Milky Way. Belonging to the Centaurus A group of galaxies, it is located at a distance of almost 13 million light-years. Showing a remarkable resemblance to our own galaxy, NGC 4945 also hides a supermassive black hole behind the thick, ring-shaped structure of dust visible in the picture. But, unlike the black hole at the centre of our Milky Way, the million-solar-mass black hole inside NGC 4945 is an Active Galactic Nucleus that is frantically consuming any surrounding matter, and so releasing tremendous amounts of energy.

This image combines observations performed through three different filters (B, V, R) with the 1.5-metre Danish telescope at the ESO La Silla Observatory in Chile.

Bildnachweis:

ESO/IDA/Danish 1.5 m/R. Gendler and C. Thöne

Über das Bild

ID:potw1007a
Typ:Beobachtung
Veröffentlichungsdatum:15. Februar 2010 11:21
Größe:2970 x 1800 px

Über das Objekt

Name:NGC 4945
Typ:Local Universe : Galaxy : Component : Central Black Hole
Local Universe : Galaxy : Type : Spiral
Entfernung:13 Million Lichtjahre
Constellation:Centaurus
Kategorie:Galaxies

Bildformate

Großes JPEG
1,2 MB

Skalierbar


Bildschirm-Hintergrundbilder

1024x768
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1280x1024
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1600x1200
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1920x1200
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2048x1536
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Koordinaten

Position (RA):13 5 24.66
Position (Dec):-49° 28' 0.35"
Field of view:19.54 x 11.84 arcminutes
Orientierung:Die Nordrichtung liegt 45.0° rechts zur Vertikale

Farben & Filter

SpektralbereichTeleskop
Optisch
B
Danish 1.54-metre telescope
Optisch
V
Danish 1.54-metre telescope
Optisch
R
Danish 1.54-metre telescope

 

Siehe auch