CCD image taken with a STL-1301E CCD camera thru Kopernik’s 20 inch F/8 telescope. The exposure was 80 minutes.
NGC 2371 - NGC 2372 was discovered in the 18th Century by William Herschel, and first identified as a planetary nebula by Pease in 1917. It has an obvious bipolar appearance. Note the pair of very faint "polar caps" to the upper right and lower left which represent polar outflows, probably due to stellar winds constrained by an equatorial torus. A picture of this nebula taken by the Japanese SUBARU telescope can be found here.
Planetary Nebulae: To learn more about them, click here.
George Normandin, KAS
May 12th, 2010