Hubble image archive
Markarian 817
Active galaxy Markarian 817 CreditsNASA, ESA, and the Hubble SM4 ERO Team
- Date
- Jan 1, 2009
- Mission
- Hubble Space Telescope
- Archive ID
- hubblesite-images-2009-25-2593-image
Active galaxy Markarian 817
Credits
NASA, ESA, and the Hubble SM4 ERO TeamImage Details
| About The Object | |
|---|---|
| Object Name | Markarian 817, Mrk 817, QSO J1436+5847 |
| Object Description | Active Galaxy |
| R.A. Position | 14h 36m 22.07s |
| Dec. Position | 58° 47' 39.3" |
| Constellation | Draco |
| Distance | 430 million light-years (132 million parsecs) |
| Dimensions | This image is 1.9 arcminutes (232,000 light-years or 71,000 parsecs) wide. |
| About The Data | |
| Data Description | The Hubble images/spectrum were created from data from proposal : K. Noll (STScI) and J. Green, C. Froning, and B. Keeney (University of Colorado, Boulder). Acknowledgments for Markarian 817 Observers: K. Noll (STScI) and J. Green, C. Froning, and B. Keeney (University of Colorado, Boulder) Data Analysis: J. Anderson and M. Mutchler (STScI), and C. Froning and J. Green (University of Colorado, Boulder) Image Composition: Z. Levay and L. Frattare (STScI) Text: L. Frattare, D. Weaver and R. Villard (STScI) Illustrations: A. Feild and Z. Levay (STScI) Video Animation: G. Bacon (STScI) Science Consultants: M. Livio (STScI) and C. Froning and J. Green (University of Colorado, Boulder) |
| Instrument | HST>WFC3/UVIS |
| Exposure Dates | August 2, 2009, Exposure Time: 1.8 hours |
| Filters | F438W (B), F555W (V), F680N (H-alpha + [N II]), and F814W (I) |
| About The Image | |
| Color Info | This image is a composite of separate exposures made by the WFC3 instrument on the Hubble Space Telescope. Four filters were used to sample broad and narrow wavelength ranges. The color results from assigning different hues (colors) to each monochromatic image. In this case, the assigned colors are: Blue: F438W (B) Green: F555W (V) Red: F680N (H-alpha + [N II]) + F814W (I) |
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Image and source material are credited to the official mission archive linked below.
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