A Hubble gem: the Jewel Box

Esahubble_heic0913a_1024

esahubble_heic0913a October 29th, 2009

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

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 dimmest stars 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.

Image Source: http://www.spacetelescope.org/images/heic0913a/

Curator: ESA/Hubble, Garching bei München, Germany

Image Use Policy: Creative Commons Attribution 4.0 International License

Image Details

Image Type
Observation
Object Name
NGC 4755
Subject - Milky Way
Star > Grouping > Cluster > Open
Esahubble_heic0913a_128
 

Position Details

Position (ICRS)
RA = 12h 53m 46.5s
DEC = -60° 21’ 58.8”
Orientation
North is 35.9° CW
Field of View
2.5 x 1.2 arcminutes
Constellation
Crux

Color Mapping

  Telescope Spectral Band Wavelength
Arrow_left_purple Hubble Space Telescope (WFPC2) Ultraviolet (U) 170.0 nm
Arrow_left_purple Hubble Space Telescope (WFPC2) Ultraviolet (U) 255.0 nm
Arrow_left_blue Hubble Space Telescope (WFPC2) Ultraviolet (U) 336.0 nm
Arrow_left_blue Hubble Space Telescope (WFPC2) Optical (B) 439.0 nm
Arrow_left_cyan Hubble Space Telescope (WFPC2) Optical (V) 547.0 nm
Arrow_left_green Hubble Space Telescope (WFPC2) Optical (R) 675.0 nm
Arrow_left_red Hubble Space Telescope (WFPC2) Infrared (I) 814.0 nm
Spectrum_base
Arrow_top_purple
Arrow_top_purple
Arrow_top_blue
Arrow_top_blue
Arrow_top_cyan
Arrow_top_green
Arrow_top_red
Esahubble_heic0913a_1280
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ID
heic0913a
Subject Category
B.3.6.4.1  
Subject Name
NGC 4755
Credits
NASA/ESA and Jesús Maíz Apellániz (Instituto de Astrofísica de Andalucía, Spain)
Release Date
2009-10-29T10:00:00
Lightyears
Redshift
Reference Url
http://www.spacetelescope.org/images/heic0913a/
Type
Observation
Image Quality
Distance Notes
Facility
Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope, Hubble Space Telescope
Instrument
WFPC2, WFPC2, WFPC2, WFPC2, WFPC2, WFPC2, WFPC2
Color Assignment
Purple, Purple, Blue, Blue, Cyan, Green, Red
Band
Ultraviolet, Ultraviolet, Ultraviolet, Optical, Optical, Optical, Infrared
Bandpass
U, U, U, B, V, R, I
Central Wavelength
170, 255, 336, 439, 547, 675, 814
Start Time
Integration Time
Dataset ID
Notes
Coordinate Frame
ICRS
Equinox
J2000
Reference Value
193.44364007, -60.3663403112
Reference Dimension
3016.0, 1487.0
Reference Pixel
1508.0, 743.5
Scale
-1.38774993039e-05, 1.38774993039e-05
Rotation
-35.860000000000028
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
Creator (Curator)
ESA/Hubble
URL
http://www.spacetelescope.org/
Name
Email
Telephone
Address
Karl-Schwarzschild-Strasse 2
City
Garching bei München
State/Province
Postal Code
D-85748
Country
Germany
Rights
Creative Commons Attribution 4.0 International License
Publisher
ESA/Hubble
Publisher ID
esahubble
Resource ID
heic0913a
Metadata Date
2009-10-26T13:45:16+01:00
Metadata Version
1.1
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Detailed color mapping information coming soon...

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There is no distance meta data in this image.