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.

Mynd/Myndskeið:

ESO

Um myndina

Auðkenni:potw2119a
Tegund:Athuganir
Útgáfudagur:Maí 10, 2021, 06:00 CEST
Stærð:1718 x 1727 px

Um fyrirbærið

Nafn:DG121
Tegund:Milky Way : Nebula : Appearance : Emission : H II Region
Constellation:Puppis
Flokkur:Nebulae

Myndasnið

Stór JPEG
519,4 KB

Þysjanleg


Bakgrunnsmynd

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Hnit

Position (RA):7 32 9.97
Position (Dec):-16° 58' 18.07"
Field of view:7.21 x 7.25 arcminutes
Stefna:Norður er -0.0° vinstri frá lóðréttu

Litir og síur

TíðnisviðBylgjulengdSjónauki
Sýnilegt
B
440 nmVery Large Telescope
FORS2
Sýnilegt
V
557 nmVery Large Telescope
FORS2
Sýnilegt
R
655 nmVery Large Telescope
FORS2
Sýnilegt
H-alpha
656 nmVery Large Telescope
FORS2