Spiral galaxy NGC 253

This photo shows a sky field around the Spiral Galaxy NGC 253 (Type Sc) seen nearly edge-on. It is located in the southern constellation Sculptor at a distance of about 8 million light-years. The image is the sum of five 5-min exposures through a blue (B-band) optical filtre. They were slightly offset with respect to each other so that the small gaps between the eight CCD''''s of the mosaic are no longer visible. This image also shows the faint trails of 2 artificial satellites. Many of the quite numerous and small, slightly fuzzy objects are undoubtedly globular clusters of NGC 253. The image processing consisted of de-biassing, flat-fielding, and removal (by interpolation) of some bad columns. The full-width-half-maximum (FWHM) of stellar images is about 1.0 arcsec. It was rebinned (2x2) to 4kx4k size and sampling 0.48 arcsec/pixel.North is up and East is left.

Credit:

ESO

Over de afbeelding

Id:eso9903a
Type:Observatie
Publicatiedatum:15 januari 1999
Gerelateerde berichten:eso9903
Grootte:4000 x 3917 px

Over het object

Naam:NGC 253
Type:Local Universe : Galaxy : Type : Spiral
Afstand:11 miljoen lichtjaren
Constellation:Sculptor
Categorie:Galaxies

Afbeeldingstypen

Grote JPEG
1,8 MB

Inzoomen


Achtergrond

1024x768
90,9 KB
1280x1024
140,7 KB
1600x1200
204,2 KB
1920x1200
260,0 KB
2048x1536
333,3 KB

Coordinates

Position (RA):0 47 42.16
Position (Dec):-25° 15' 32.86"
Field of view:31.95 x 31.28 arcminutes
Orientation:North is 1.6° right of vertical

Kleuren & filters

BandTelescoop
Optisch
B
MPG/ESO 2.2-metre telescope
WFI