A Hubble gem: the Jewel Box

This image is a “close-up” view from the NASA/ESA Hubble Space Telescope of NGC 4755, or the Jewel Box cluster. Several very bright, pale blue supergiant stars, a solitary ruby-red supergiant and a variety of other brilliantly coloured stars are visible in the image, as well as many much fainter ones, often with intriguing colours. The huge variety in brightness exists because the brighter stars are 15 to 20 times the mass of the Sun, while the dim points are less than half the mass of the Sun. This is the first image of an open galactic cluster with imaging extending from the far ultraviolet to the near-infrared.

Herkunftsnachweis:

NASA/ESA and Jesús Maíz Apellániz (Instituto de Astrofísica de Andalucía, Spain)

Über das Bild

ID:eso0940c
Typ:Beobachtung
Veröffentlichungsdatum:29. Oktober 2009
Dazugehörige Veröffentlichungen:eso0940
Größe:3016 x 1487 px

Über das Objekt

Name:NGC 4755
Typ:Milky Way : Star : Grouping : Cluster
Entfernung:6500 Lichtjahre
Constellation:Crux
Kategorie:Star Clusters

Bildformate

Großes JPEG
626,9 KB

Bildschirm-Hintergrundbilder

1024x768
136,3 KB
1280x1024
198,6 KB
1600x1200
283,0 KB
1920x1200
340,8 KB
2048x1536
416,7 KB

Koordinaten

Position (RA):12 53 42.12
Position (Dec):-60° 22' 1.21"
Field of view:2.51 x 1.24 arcminutes
Orientierung:Die Nordrichtung liegt 35.3° rechts zur Vertikale

Farben & Filter

SpektralbereichWellenlängeTeleskop
Ultraviolett
Far-UV
170 nmHubble Space Telescope
WFPC2
Ultraviolett
Mid-UV
255 nmHubble Space Telescope
WFPC2
Ultraviolett
Near-UV
336 nmHubble Space Telescope
WFPC2
Optisch
B
439 nmHubble Space Telescope
WFPC2
Optisch
V
547 nmHubble Space Telescope
WFPC2
Optisch
R
675 nmHubble Space Telescope
WFPC2
Infrarot
I
814 nmHubble Space Telescope
WFPC2