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Sharpless 2-216: Planetary Nebula in Perseus

RA = 4 hr 45 min; Dec = +46 deg 48 min

Date & Site:
Imaged on 11/24 - 11/28/11; Runningman Observatory, Carlsbad, CA

Telescope:Takahasahi Sky 90 (408 fl F4.5)
Mount: Losmandy G-11 with Gemini
Camera: ST-10XME; CFW10 with Astrodon filters


Conditions: 50 degrees; calm, very good seeing

Exposures: Ha: 6 hrs 15 min (15 min subs); RGB: 40 min each (10 min subs) for a total of 8 hrs 15 minutes

First attempt at collecting color data (RGB) from backyard site. Because of their wide spectral range and overlap, color information is usually washed out by urban glow. However this image was taken during a new moon under very dark and transparent skies. Color data were uncontaminated.

FOV = 126 x 85 arc minutes

SH2-216 is thought to be the oldest planetary nebula in our system. Located only 360 light years away it is also one of the closest planetary nebulae.

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