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.

Autorska prava:

ESO

O slici

Id:eso0510a
Tip:Opservacija
Datum objavljivanja:22. mart 2005.
Povezana saopštenja:eso0510
Veličina:1261 x 1261 px

O objektu

Naziv:Westerlund 1
Tip:Local Universe : Star : Grouping : Cluster
Udaljenost:15000 svetlosnih godina
Constellation:Ara
Kategorija:Star Clusters
Stars

Formati slika

Veliki JPEG
1,0 MB

Wallpapers

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

Koordinate

Position (RA):16 47 4.02
Position (Dec):-45° 51' 4.39"
Field of view:5.00 x 5.00 arcminutes
Orijentacija:Sever je 0.1°desno od vertikale

Boje i flteri

OpsegTalasna dužinaTeleskop
Optički
V
550 nmMPG/ESO 2.2-metre telescope
WFI
Optički
R
650 nmMPG/ESO 2.2-metre telescope
WFI
Infracrveni
I
784 nmMPG/ESO 2.2-metre telescope
WFI

 

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