Daily Archives: April 3, 2015

Sharpless 1


Sh 2-1, also known as Sharpless 1, is a reflection nebula in the constellation of Scorpius. It appears as a modest brightness making it one of the easier Sharpless catalog objects to view. It features an apparent central star inside the nebulosity however it is not part its system nor a left over remnant. The nebulous area is fairly large with an irregular shape appearing as a 180° arc shape surrounding a central star. The remnant has an apparent diameter that covers approximately 150′ and an estimated distance of approximately 650ly away.

Imaging telescopes or lenses: ASA N 10 inch f3/6 ASA
Imaging cameras: SBIG STL-11000M
Mounts: Astro-Physics AP1200
Filters: Astrodon E-series Lum
Resolution: 3640×2640
Dates: March 15, 2015
Frames: 36×900″
Integration: 9.0 hours
Avg. Moon age: 23.44 days
Avg. Moon phase: 36.41%
RA center: 239.720 degrees
DEC center: -26.206 degrees
Orientation: 88.919 degrees
Field radius: 1.284 degrees

Author: Mark

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