LBN 762 in Aries
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CLICK ON IMAGE FOR FULL SIZE VIEW (2800x2100) Scope: Explore Scientific MN152 Maksutov Newtonian at f/4.8, Location: DAA Observatory, Shelter Valley, CA, 11 and 17 October 2020, Camera: ASI294MM (Astrodon LRGB filters) Exposure:
Exposure: 32 x 7 min (gain-121) and 15 x 7 min (gain -242) 1x1 bin exposure with UV/IR block filter,
16 x
4 min (gain - 121) 1x1 bin each RGB
exposures.
Processing: Data
Collection - Sequence Generator Pro (as FITs). Subframe calibration
- Pixinsight. Subframe registration and integration (Average combine - Winsorized Sigma
Clipping) - PixInsight. Mure Denoise - PixInsight. Non-linear stretching, normalization and
gradient removal - PixInsight. Generation of starless nebulosity Luminance
image
for later processing - starnet++. Curves, Levels, RGB combine, Luminance
layering - PixInsight. Stars and Starless Luminance combine - PixInsight. Final finishing - Photoshop.
Photometric RGB calibration
- PixInsight. Annotation - PixInsight, Aladin (Simbad and NED), and PhotoShop. This image is a RGB combine with
Luminance layering. Images processed at 4144x2822 resolution. Final
Image size is approximately 3000x2049. North is up in this image. This
image shows a region of interstellar material and dust illuminated by nearby
stars as well as dark nebulae of dust blocking the light from background stars.
The illuminated dust structure is LBN 762; the dark nebulae are various PGCC
cold clouds. There are several
background galaxies in the image - some of which are visible through the dust of
the nebula. These objects
and some of the brighter stars are identified in the annotated
image. Horizontal FOV is approximately 88 arc minutes. Full size
image scale is 1.56 arcsec/pix. Image center is approximately - Equatorial 2000: RA: 02h 59m 32s Dec: +17°21'21"
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