Stars and Nebulae in dwarf galaxy NGC 6822

This image is a reproduction of a narrow-band image of the central region of NGC 6822. This image was taken with a filter centred on the H-alpha spectral line of atomic hydrogen. It was obtained by the FORS1 Commissioning Team on October 2, 1998, in the FORS high-resolution imaging mode. The exposure time was 15 min and the atmospheric conditions were good. The size of the stellar images in the field is about 0.5 arcsec and this photo shows more details than earlier ones obtained with ground-based telescopes of this galaxy. In addition to numerous stars that emit a continuous spectrum, the image also shows diffuse emission from interstellar hydrogen gas in NGC 6822. Moreover, strong H-alpha emission is seen from several stellar-wind bubbles around hot young stars.

Herkunftsnachweis:

ESO

Über das Bild

ID:eso9920b
Typ:Beobachtung
Veröffentlichungsdatum:27. Februar 1999
Dazugehörige Veröffentlichungen:eso9920, eso9913
Größe:1152 x 1152 px

Über das Objekt

Name:NGC 6822
Typ:Local Universe : Galaxy : Type : Irregular
Local Universe : Galaxy : Size : Dwarf
Entfernung:2 Million Lichtjahre
Kategorie:Nebulae

Bildformate

Großes JPEG
1,3 MB

Bildschirm-Hintergrundbilder

1024x768
875,9 KB
1280x1024
1,2 MB
1600x1200
1,5 MB
1920x1200
1,6 MB
2048x1536
2,1 MB

Farben & Filter

SpektralbereichTeleskop
Optisch
H-alpha
Very Large Telescope
FORS1