A Phenomenal View of a Phenomenal Spiral

The MUSE instrument on ESO’s Very Large Telescope (VLT) in Chile has observed NGC 1365, a double-barred spiral galaxy located about 56 million light-years away in the Fornax galaxy cluster, allowing us to construct this spectacular colour image. The galaxy is also known as the Great Barred Spiral Galaxy, after its two central bar-shaped structures, made up of stars. 

The two bars of NGC 1365 are a rare phenomenon and are thought to have originated by the combined effects of galaxy rotation and the complex dynamics of the stars. Its largest bar of stars, too large for its structure to be visible in this image, connects its outer spiral arms to its centre. What we can see is the much smaller second bar of stars, nestled within the main bar. It is likely this secondary bar acts independently of the main bar, rotating more rapidly than the rest of the galaxy.

Standing for Multi-Unit Spectroscopic Explorer, the MUSE instrument captured this image in optical and infrared light, showing the gas and dust in the central region of the galaxy. Installed on Yepun, one of the four 8.2-metre telescopes that make up the VLT, the capabilities of this instrument have allowed for some of the most comprehensive and detailed studies of our Universe to date, including surveys of distant galaxies, supermassive black holes and even the source of gravitational waves.

Kilde:

Om bildet

ID:potw2034a
Type:Observasjon
Publiseringsdato:24. august 2020 06:00
Størrelse:614 x 606 px

Om objektet

Navn:NGC 1365
Type:Local Universe : Galaxy : Type : Spiral
Avstand:55 million lysår
Constellation:Fornax
Kategori:Galaxies

Bildeformater

Stor JPEG
87,2 KB
Medium JPEG
120,5 KB

Zoombart


Skrivebordsbakgrunner

1024x768
141,8 KB
1280x1024
194,8 KB
1600x1200
246,5 KB
1920x1200
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2048x1536
335,7 KB

Koordinater

Position (RA):3 33 36.55
Position (Dec):-36° 8' 25.40"
Field of view:1.02 x 1.01 arcminutes
Orientering:Nord er -0.0° til venstre for vertikalen

Farger og filtre

BåndBølgelengdeTeleskop
Optisk
B
435 nmVery Large Telescope
MUSE
Optisk
OIII
507 nmVery Large Telescope
MUSE
Optisk
G
475 nmVery Large Telescope
MUSE
Optisk
R
625 nmVery Large Telescope
MUSE
Optisk
H-alpha
656 nmVery Large Telescope
MUSE
Optisk
NII
658 nmVery Large Telescope
MUSE

 

Se også