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
Telescope | Spectral Band | Wavelength | |
---|---|---|---|
Hubble (WFPC2) | Ultraviolet (Far-UV) | 170.0 nm | |
Hubble (WFPC2) | Ultraviolet (Mid-UV) | 255.0 nm | |
Hubble (WFPC2) | Ultraviolet (Near-UV) | 336.0 nm | |
Hubble (WFPC2) | Optical (B) | 439.0 nm | |
Hubble (WFPC2) | Optical (V) | 547.0 nm | |
Hubble (WFPC2) | Optical (R) | 675.0 nm | |
Hubble (WFPC2) | Infrared (I) | 814.0 nm | |
Detailed color mapping information coming soon...
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