A Hubble gem: the Jewel Box

Eso_eso0940c_1024

eso_eso0940c 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 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.

Provider: European Southern Observatory

Image Source: https://www.eso.org/public/images/eso0940c/

Curator: European Southern Observatory, 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
Eso_eso0940c_128
 

Position Details

Position (ICRS)
RA = 12h 53m 42.1s
DEC = -60° 22’ 1.2”
Orientation
North is 35.3° CW
Field of View
2.5 x 1.2 arcminutes
Constellation
Crux

Color Mapping

  Telescope Spectral Band Wavelength
Purple Hubble (WFPC2) Ultraviolet (Far-UV) 170.0 nm
Purple Hubble (WFPC2) Ultraviolet (Mid-UV) 255.0 nm
Blue Hubble (WFPC2) Ultraviolet (Near-UV) 336.0 nm
Blue Hubble (WFPC2) Optical (B) 439.0 nm
Cyan Hubble (WFPC2) Optical (V) 547.0 nm
Green Hubble (WFPC2) Optical (R) 675.0 nm
Red Hubble (WFPC2) Infrared (I) 814.0 nm
Spectrum_base
Purple
Purple
Blue
Blue
Cyan
Green
Red
Eso_eso0940c_1280
×
ID
eso0940c
Subject Category
B.3.6.4  
Subject Name
NGC 4755
Credits
NASA/ESA and Jesús Maíz Apellániz (Instituto de Astrofísica de Andalucía, Spain)
Release Date
2009-10-29T00:00:00
Lightyears
Redshift
Reference Url
https://www.eso.org/public/images/eso0940c/
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
Far-UV, Mid-UV, Near-UV, 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
193.425507, -60.367004
Reference Dimension
3016.0, 1487.0
Reference Pixel
2010.61416012, 308.645657223
Scale
-1.38759e-05, 1.38759e-05
Rotation
-35.32860183997
Coordinate System Projection:
TAN
Quality
Full
FITS Header
Notes
Creator (Curator)
European Southern Observatory
URL
http://www.eso.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
European Southern Observatory
Publisher ID
eso
Resource ID
eso0940c
Metadata Date
2009-10-26T13:45:16+01:00
Metadata Version
1.1
×

 

Detailed color mapping information coming soon...

×

There is no distance meta data in this image.

 

Providers | Sign In