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.

Källa:

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

Om bilden

ID:eso0940c
Typ:Observation
Publiceringsdatum:29 oktober 2009
Relaterade pressmeddelanden:eso0940
Storlek:3016 x 1487 px

Om objektet

Namn:NGC 4755
Typ:Milky Way : Star : Grouping : Cluster
Avstånd:6500 ljusår
Constellation:Crux
Kategori:Star Clusters

Bildformat

Stor jpeg
626,9 kB
Skärmstor jpeg
91,3 kB

Skrivbordsunderlägg

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

Koordinater

Position (RA):12 53 42.12
Position (Dec):-60° 22' 1.21"
Field of view:2.51 x 1.24 arcminutes
Orientering:Nord är 35.3° höger om lodrätt

Färger och filter

BandVåglängdTeleskop
Ultraviolett
Far-UV
170 nmHubble Space Telescope
WFPC2
Ultraviolett
Mid-UV
255 nmHubble Space Telescope
WFPC2
Ultraviolett
Near-UV
336 nmHubble Space Telescope
WFPC2
Synligt ljus
B
439 nmHubble Space Telescope
WFPC2
Synligt ljus
V
547 nmHubble Space Telescope
WFPC2
Synligt ljus
R
675 nmHubble Space Telescope
WFPC2
Infrarött
I
814 nmHubble Space Telescope
WFPC2