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.

Oikeudet:

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

Kuvasta

Tunnistus:eso0940c
Tyyppi:Havainto
Julkaisupäivä:29. lokakuuta 2009
Vastaavat julkaisut:eso0940
Koko:3016 x 1487 px

Kohteesta

Nimi:NGC 4755
Tyyppi:Milky Way : Star : Grouping : Cluster
Etäisyys:6500 valovuotta
Constellation:Crux
Kategoria:Star Clusters

Kuvaformaatit

Suuri JPEG
626,9 KB
Kokoruudun JPEG
91,3 KB

Taustakuvat

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

Koordinaatit

Position (RA):12 53 42.12
Position (Dec):-60° 22' 1.21"
Field of view:2.51 x 1.24 arcminutes
Suuntaus:Pohjoinen on 35.3° oikea pystysuuntaan nähden

Värit ja suotimet

KaistaAallonpituusTeleskooppi
Ultravioletti
Far-UV
170 nmHubble Space Telescope
WFPC2
Ultravioletti
Mid-UV
255 nmHubble Space Telescope
WFPC2
Ultravioletti
Near-UV
336 nmHubble Space Telescope
WFPC2
Optinen
B
439 nmHubble Space Telescope
WFPC2
Optinen
V
547 nmHubble Space Telescope
WFPC2
Optinen
R
675 nmHubble Space Telescope
WFPC2
Infrapuna
I
814 nmHubble Space Telescope
WFPC2