planetary nebula, with the Explore-Levy comet hunter
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Cataloged by the Czech astronomers
Perek and Kohoutek, PK164+31.1, is a very faint planetary nebula
lying in the constellation Lynx.
It subtends about 400 arc seconds, but has a magnitude of only
14.0. Some guider problems (clouds) limited the total exposure
to 110 minutes
leading to some noise in the finished image. I plan H alpha for
this if weather cooperates this year.
This image is a stack of 11 ten-minute sub exposures, acquired,
calibrated , stacked, and first color in Nebulosity 2.2.4.
Final color, curves, and gradients in Photoshop.
The scope is a 152mm f/4.8
piggybacked on the 12 inch LX200 classic.
Canon 350d Hap Griffin mod at prime, guided with a DSI pro and
PHD on the 12 inch at f3.3
Julian, California - 17 February, 2010