The Great Barred Spiral Galaxy

Spiralling around, 61 million light-years away in the constellation Fornax (the Furnace), NGC 1365 is enormous. At 200000 light-years across, it is one of the largest galaxies known to astronomers. This, plus the sharply defined bar of old stars across its structure is why it is also known as the Great Barred Spiral Galaxy. Astronomers think that the Milky Way may look very similar to this galaxy, but at half the size. The bright centre of the galaxy is thought to be due to huge amounts of superhot gas ejected from the ring of material circling a central black hole. Young luminous hot stars, born out of the interstellar clouds, give the arms a prominent appearance and a blue colour. The bar and spiral pattern rotates, with one full turn taking about 350 million years.

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.

Mynd/Myndskeið:

ESO/IDA/Danish 1.5 m/ R. Gendler, J-E. Ovaldsen, C. Thöne, and C. Feron.

Um myndina

Auðkenni:potw1037a
Tegund:Athuganir
Útgáfudagur:Sep 13, 2010, 10:00 CEST
Stærð:2506 x 1887 px

Um fyrirbærið

Nafn:NGC 1365
Tegund:Local Universe : Galaxy : Type : Spiral
Local Universe : Galaxy : Type : Barred
Fjarlægð:60 milljón ljósár
Constellation:Fornax
Flokkur:Galaxies

Myndasnið

Stór JPEG
1,0 MB

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Bakgrunnsmynd

1024x768
159,9 KB
1280x1024
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1600x1200
379,3 KB
1920x1200
489,9 KB
2048x1536
676,5 KB

Hnit

Position (RA):3 33 36.35
Position (Dec):-36° 8' 29.21"
Field of view:23.40 x 17.62 arcminutes
Stefna:Norður er 106.7° vinstri frá lóðréttu

Litir og síur

TíðnisviðSjónauki
Sýnilegt
B
Danish 1.54-metre telescope
DFOSC
Sýnilegt
V
Danish 1.54-metre telescope
DFOSC
Sýnilegt
R
Danish 1.54-metre telescope
DFOSC