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.

Oikeudet:

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

Kuvasta

Tunnistus:potw1007a
Tyyppi:Havainto
Julkaisupäivä:15. helmikuuta 2010 11:21
Koko:2970 x 1800 px

Kohteesta

Nimi:NGC 4945
Tyyppi:Local Universe : Galaxy : Component : Central Black Hole
Local Universe : Galaxy : Type : Spiral
Etäisyys:13 miljoona valovuotta
Constellation:Centaurus
Kategoria:Galaxies

Kuvaformaatit

Suuri JPEG
1,2 MB
Kokoruudun JPEG
170,0 KB

Zoomattavissa


Taustakuvat

1024x768
231,9 KB
1280x1024
356,2 KB
1600x1200
499,4 KB
1920x1200
591,0 KB
2048x1536
790,8 KB

Koordinaatit

Position (RA):13 5 24.66
Position (Dec):-49° 28' 0.35"
Field of view:19.54 x 11.84 arcminutes
Suuntaus:Pohjoinen on 45.0° oikea pystysuuntaan nähden

Värit ja suotimet

KaistaTeleskooppi
Optinen
B
Danish 1.54-metre telescope
Optinen
V
Danish 1.54-metre telescope
Optinen
R
Danish 1.54-metre telescope

 

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