K3's Astronomy - Deep Sky
"When I consider your heavens, the work of your fingers, the moon and the stars which You have set in place, what is Man that You are mindful of him?" -- Psalm 8:3,4
M57 - Maps and nearby stars catalogue
After taking photos of M57 I found out, that I have not sufficient detailed maps. I have GSC catalogue with 15 millions stars till 15mag, but it is not sufficient for designating limiting magnitude of long exposure photographs. Furthermore, I found out, that it misses some stars brighter than 15mag. After searching on Internet I found very nice page of Jerry Lodriguss with M57 description and links to star data catalog.
I edited the catalog and compiled it to SkyMap Pro 7 Demo suitable catalogue. You can download it here. For more info about installing external catalogues into SkyMap Pro 7 Demo, see the SkyMap Pro 7 help.
Another interesting source of information is M57 Star Photometry By Brian Skiff web page

Here is a part of map as it looks in SkyMap Pro 7. Click the picture to see the whole map.

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Last Update: 18.10.2001