The Eponymous Ngc 691
Photograph - Digital Photography
"The Eponymous NGC 691"
This image features the spiral galaxy NGC 691, imaged in fantastic detail by Hubble’s Wide Field Camera 3 (WFC3). This galaxy is the eponymous member of the NGC 691 galaxy group, a group of gravitationally bound galaxies that lie about 120 million light-years from Earth.
Objects such as NGC 691 are observed by Hubble using a range of filters. Each filter only allows certain wavelengths of light to reach Hubble’s WFC3. The images collected using different filters are then coloured by specialised visual artists who can make informed choices about which colour best corresponds to which filter. By combining the coloured images from individual filters, a full-colour image of the astronomical object can be recreated. In this way, we can get remarkably good insight into the nature and appearance of these objects.
Image and Text Credit: ESA/Hubble & NASA, A. Riess; CC BY 4.0 Acknowledgement: M. Zamani
Additional image editing by Eric Glaser
June 10th, 2021
Viewed 41 Times - Last Visitor from Cupertino, CA on 09/23/2021 at 11:01 PM