The super star cluster Westerlund 1

Composite image of the super star cluster "Westerlund 1" from 2.2-m MPG/ESO Wide-Field Imager (WFI) observations. The image covers a 5 x 5 arcmin sky region and is based on observations made in the V-band (550 nm, 2 min exposure time, associated to the blue channel), R-band (650nm, 1 min, green channel) and I-band (784nm, 18 sec, red channel). Only the central CCD of WFI was used, as the entire cluster fits comfortably inside it. The foreground stars appear blue, while the hot massive members of the cluster look orange, and the cool massive ones come out red.

Të drejtat:

ESO

Rreth fotografisë

Id:eso0510a
Tipi:Vëzhgim
Data e Publikimit:22 Mars 2005
Publikime të ngjashme:eso0510
Përmasat:1261 x 1261 px

Rreth objektit

Emri:Westerlund 1
Tipi:Local Universe : Star : Grouping : Cluster
Distanca:15000 vite dritë
Constellation:Ara
Kategori:Star Clusters
Stars

Formate Fotografish

JPEG i madh
1,0 MB

Wallpaper

1024x768
564,3 KB
1280x1024
1,0 MB
1600x1200
1,4 MB
1920x1200
1,5 MB
2048x1536
1,9 MB

Koordinatat

Position (RA):16 47 4.02
Position (Dec):-45° 51' 4.39"
Field of view:5.00 x 5.00 arcminutes
Orientimi:Veriu është 0.1° djathtas vertikales

Ngjyra & filtera

BandaGjatësi valeTeleskopi
Optik
V
550 nmMPG/ESO 2.2-metre telescope
WFI
Optik
R
650 nmMPG/ESO 2.2-metre telescope
WFI
Infra të kuqe
I
784 nmMPG/ESO 2.2-metre telescope
WFI

 

Shih dhe