Object Type: Planetary
Size: 1.4' x 1.0'
M57, commonly known as the
Ring Nebula, is one of the brightest planetary nebulae in the sky, and was the second to
be discovered after M27. It is located at a distance of about
2,300 light-years. In this image a faint outer halo can be seen. In the upper right is the
magnitude 15.5 spiral galaxy IC 1296.
Meade LX200R/ST-10XME/Astrodon LRGB filters/Paramount ME
Exposures: LRGB: L 10 x 6 minutes, binned 2x2: R 10 x 6 minutes: G
10 x 6 minutes: B 10 x 6 minutes: RGB binned 3x3
Date: August 10, 2007
Location: Landers, California, USA
Technical Notes: Individual exposures were obtained using CCDAutoPilot2 and then sigma combined. The RGB image was created in
Registar 1.0. A high-pass filter with a radius of 4 pixels was selectively applied to a
copy of the luminance image.