Object Type: Supernova
Size: 6' x 4'
As its number suggests, M1
was the first object catalogued by Charles Messier in 1758. The nebula is the remnant of a
supernova that was visible to the naked eye in daylight in 1054.
Meade LX200R/ST-10XME/Astrodon LRGB filters/Paramount ME
Exposures: LRGB: L 10 x 5 minutes, binned 2x2: R 8 x 5 minutes: G 8
x 5 minutes: B 8 x 5 minutes: RGB binned 3x3
Date: January 12, February 15, and March 9, 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. A copy of the RGB image was combined with the original using
Soft Light to enhance color.