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| M-97, or the
Owl Nebula is at lower right. At upper left is NGC 3556. They can be found
under the bowl part of Ursa Major. M-97, though listed as 9th magnitude,
can be difficult to see under skies that are light-polluted or hazy. M-97
is a planetary nebula. NGC 3556 is a distant galaxy.
Equipment: Nikkor 800mm f 5.6 lens on a Losmandy G-11 mount, ST-4 autoguider on a Meade ETX90. Exposure: Combination of three exposures: 30 minutes with Kodak Royal Gold 400, 50 minutes with Kodak E200, and three minutes with Kodak E200. That short exposure was a mistake, aborted when I thought the autoguider had lost the guide star. Nevertheless, in three minutes, both the Owl nebula and NGC 3556 were recorded on the film. Location: A light polluted back yard in suburban Milwaukee. |