Sharpless 2-88 (LDN 139) Nebula
Also known as the Face of God Nebula, Sharpless 2-88 lies in the constellation of Vulpecula at a distance of 6,523 ly from Earth. It is part of the Vulpecula OB1 association. M. Schuster provides a comprehensive overview of the region.
This narrowband image is captured in the SHO Hubble palette, with [S II], H-alpha and [O III] emission assigned to RGB channels respectively. It was obtained with the A1 telescope installed at the Alnitak Remote Observatory in Nerpio, Spain:
- 0.43 m PlaneWave CDK17 f/6.8 Corrected Dall-Kirkham Telescope
- Software Bisque Paramount ME German Equatorial Mount
- Moravian Instruments C3-61000 Pro, Back-Illuminated CMOS Camera
- Chroma 50 mm filters (5 nm narrowband)
- FLI CenterLine CL-1-14 12+2-position Dual Color Filter Wheel
- Optec Sagitta Off-Axis Guider with ASI174MM Guide Camera
Acquisition software: DC-3 ACP, MaximDL Pro, TheSky X
Processing software: DeepSkyStacker, PixInsight, RC Astro BlurXTerminator and NoiseXTerminator, GIMP.