Purple Haze

This week’s picture of the week features DG121, an HII region — a cloud of ionised hydrogen — located in the constellation of Puppis (the Stern).

HII regions, a type of emission nebulae, are created when young, massive stars release enough ultraviolet energy to ionise the surrounding gas clouds. These regions tend to have irregular structures and lack sharp boundaries, giving them their hazy, yet photogenic, appearance. The brightest star in the DG121 region, seen near the centre in this picture, is HD 60068. 

This spectacular image was taken with the FORS 2 (FOcal Reducer and low dispersion Spectrograph 2) instrument on ESO’s Very Large Telescope in the Chilean Atacama Desert. This instrument has been described by astronomers as "the Swiss army knife of instruments at Paranal", because of its ability to study many different astronomical objects in many different ways.

Kilde:

ESO

Om bildet

ID:potw2119a
Type:Observasjon
Publiseringsdato:10. mai 2021 06:00
Størrelse:1718 x 1727 px

Om objektet

Navn:DG121
Type:Milky Way : Nebula : Appearance : Emission : H II Region
Constellation:Puppis
Kategori:Nebulae

Bildeformater

Stor JPEG
519,4 KB
Medium JPEG
189,7 KB

Zoombart


Skrivebordsbakgrunner

1024x768
161,7 KB
1280x1024
247,5 KB
1600x1200
354,3 KB
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2048x1536
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Koordinater

Position (RA):7 32 9.97
Position (Dec):-16° 58' 18.07"
Field of view:7.21 x 7.25 arcminutes
Orientering:Nord er -0.0° til venstre for vertikalen

Farger og filtre

BåndBølgelengdeTeleskop
Optisk
B
440 nmVery Large Telescope
FORS2
Optisk
V
557 nmVery Large Telescope
FORS2
Optisk
R
655 nmVery Large Telescope
FORS2
Optisk
H-alpha
656 nmVery Large Telescope
FORS2