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.

Källa:

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

Om bilden

ID:potw1007a
Typ:Observation
Publiceringsdatum:15 februari 2010 11:21
Storlek:2970 x 1800 px

Om objektet

Namn:NGC 4945
Typ:Local Universe : Galaxy : Component : Central Black Hole
Local Universe : Galaxy : Type : Spiral
Avstånd:13 miljon ljusår
Constellation:Centaurus
Kategori:Galaxies

Bildformat

Originalstorlek
10,0 MB
Stor jpeg
1,2 MB
Skärmstor jpeg
170,0 kB

Zoombar


Skrivbordsunderlägg

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

Koordinater

Position (RA):13 5 24.66
Position (Dec):-49° 28' 0.35"
Field of view:19.54 x 11.84 arcminutes
Orientering:Nord är 45.0° höger om lodrätt

Färger och filter

BandTeleskop
Synligt ljus
B
Danish 1.54-metre telescope
Synligt ljus
V
Danish 1.54-metre telescope
Synligt ljus
R
Danish 1.54-metre telescope

 

Se även