R Coronae Australis Complex

This is a colour photo of the R Coronae Australis region in the southern Milky Way, obtained with the Wide Field Imager (WFI) (camera) at the 2.2-m MPG/ESO Telescope on La Silla (Chile). It is based on a series of CCD exposures through optical B-, V- and R-filters, here rendered as blue, green and red, respectively. The sky field shown measures approx. 33.7 x 31.9 arcmin (about the diameter of the full moon).

Tecnical information : The observations were obtained on the night of 30 August 2000. The image is a combination of twelve large (8000 x 8000 pix) CCD frames taken through B, V, and R filters. Four exposures of 5 min each were obtained in each filter, with the telescope pointing at slightly different positions so that the gaps among the eight individual CCD-chips of the detector can be adequately filled. All frames were carefully aligned, and the intensity levels were cut in order to achieve the proper colour balance. A logarithmic intensity scale was used to improve the dynamical range. This image displays the full field and was rebinned to a smaller scale in order to allow transportation over the web. The images were prepared by Fernando Comeron (ESO).

Herkunftsnachweis:

ESO

Über das Bild

ID:eso0031a
Typ:Beobachtung
Veröffentlichungsdatum:6. Oktober 2000
Dazugehörige Veröffentlichungen:eso0031
Größe:8423 x 7986 px

Über das Objekt

Name:R Coronae Australis
Typ:Milky Way : Star : Type : Variable
Milky Way : Nebula : Type : Star Formation
Entfernung:400 Lichtjahre
Constellation:Corona Australis
Kategorie:Stars

Bildformate

Großes JPEG
1,6 MB

Bildschirm-Hintergrundbilder

1024x768
264,3 KB
1280x1024
409,6 KB
1600x1200
518,3 KB
1920x1200
528,2 KB
2048x1536
735,0 KB

Koordinaten

Position (RA):19 1 53.72
Position (Dec):-36° 57' 9.47"
Field of view:33.35 x 31.66 arcminutes
Orientierung:Die Nordrichtung liegt 0.1° rechts zur Vertikale

Farben & Filter

SpektralbereichWellenlängeTeleskop
Optisch
B
451 nmMPG/ESO 2.2-metre telescope
WFI
Optisch
V
539 nmMPG/ESO 2.2-metre telescope
WFI
Optisch
R
651 nmMPG/ESO 2.2-metre telescope
WFI