The Helix Nebula*

This colour-composite image of the Helix Nebula (NGC 7293) was created from images obtained using the Wide Field Imager (WFI), an astronomical camera attached to the 2.2-metre Max-Planck Society/ESO telescope at the La Silla observatory in Chile. The blue-green glow in the centre of the Helix comes from oxygen atoms shining under effects of the intense ultraviolet radiation of the 120 000 degree Celsius central star and the hot gas. Further out from the star and beyond the ring of knots, the red colour from hydrogen and nitrogen is more prominent. A careful look at the central part of this object reveals not only the knots, but also many remote galaxies seen right through the thinly spread glowing gas.

This image was created from images through blue, green and red filters and the total exposure times were 12 minutes, 9 minutes and 7 minutes respectively.

This image is available as a mounted image in the ESOshop.

#L

Kilde:

ESO

Om bildet

ID:eso0907a
Type:Observasjon
Publiseringsdato:25. februar 2009
Relaterte pressemeldinger:eso0907
Størrelse:7059 x 6535 px

Om objektet

Navn:Helix Nebula, NGC 7293
Type:Milky Way : Nebula : Type : Planetary
Avstand:700 lysår
Constellation:Aquarius
Kategori:Nebulae

Bildeformater

Stor JPEG
9,9 MB
Medium JPEG
148,7 KB

Zoombart


Skrivebordsbakgrunner

1024x768
155,7 KB
1280x1024
231,9 KB
1600x1200
318,0 KB
1920x1200
382,3 KB
2048x1536
484,9 KB

Koordinater

Position (RA):22 29 38.57
Position (Dec):-20° 50' 13.82"
Field of view:28.02 x 25.94 arcminutes
Orientering:Nord er 0.1° til venstre for vertikalen

 

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