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).

Credit:

ESO

About the Image

Id:eso0031a
Type:Observation
Release date:6 October 2000
Related releases:eso0031
Size:3000 x 2848 px

About the Object

Name:R Coronae Australis
Type:Milky Way : Star : Type : Variable
Milky Way : Nebula : Type : Star Formation
Distance:400 light years
Constellation:Corona Australis
Category:Stars

Image Formats

Large JPEG
1.6 MB
Screensize JPEG
268.7 KB

Wallpapers

1024x768
264.3 KB
1280x1024
409.6 KB
1600x1200
518.3 KB
1920x1200
528.2 KB
2048x1536
735.0 KB

Coordinates

Position (RA):19 1 53.72
Position (Dec):-36° 57' 9.47"
Field of view:33.35 x 31.66 arcminutes
Orientation:North is 0.1° right of vertical

Colours & filters

BandWavelengthTelescope
Optical
B
451 nmMPG/ESO 2.2-metre telescope
WFI
Optical
V
539 nmMPG/ESO 2.2-metre telescope
WFI
Optical
R
651 nmMPG/ESO 2.2-metre telescope
WFI

 

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