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Description |
Open star cluster Messier 7 also called Ptolemy Cluster, photographed at La Palma, Roque de los Muchachos (Degollada de los Franceses). Photo taken the following equipement:
- Camera/Telecope: Pentax SDHF 500 6.7/500 on GP/DX, tracing ST4 at 600mm (Sonnar 4/300 with 2x tele converter)
- Exposure: 40 min
- Film: Kodak E200 35mm (Push to 600 ASA)
- Scanner: Scan service
- Processing: Removed vignetting, colour and contrast correction.
- additional remark: faintest object visible at 6.5 mag
Deutsch: Der offene Sternhaufen Messier 7
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Source |
Homepage of Oliver Stein
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Date |
Sept. 2004
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Author |
Oliver Stein
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Permission
(Reusing this image) |
Quotation of the permission Oliver Stein gave me in a mail after my call at forum.astronomie.de for a GFDL-free release of astro photos:
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File history
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| Date/Time | User | Dimensions | File size | Comment |
current | 07:46, 24 maghju 2005 | Arnomane | 900×604 | 285 KB | Open star cluster Messier 7, donated under GFDL by Oliver Stein, Horray :) |
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