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vdB 14 and 15 in Sh2-202 Region



Scope: FSQ-106N at f/5, Location: DAA Observatory, Shelter Valley, CA, 22 and 27 September 2022,  Camera: ASI2600MM (Astronomik type 2c LRGB filters)

Exposure: Exposure:  Panel 1 - Lum 64 x 3 min (gain-120 1x1),  RGB 20 x 2 min (gain-101 1x1). Panel 2 - Lum 64 x 3 min (gain-120 1x1) ,  RG - 18 x 2 min (gain-101 1x1), B - 20 x 2 min (gain-101 1x1)

Processing: Data Collection -  Sequence Generator Pro (as FITs).  Sub-frame calibration - Pixinsight (WBPP). Sub-frame  registration and integration (Average combine - Winsorized Sigma Clipping) - PixInsight (WBPP).  Mure Denoise - PixInsight. Non-linear stretching and gradient removal - PixInsight.  Generation of starless nebulosity Luminance images for later processing - Star XTerminator. Stars only image separately stretched, Luminance starless and mono stars only combine for luminance construction - PixInsight. RGB combine, RGB stretching, Photometric RGB calibration, and Luminance layering - PixInsight. Final finishing  - Affinity Photo. Annotation - PixInsight, Aladin (Simbad), and Affinity Photo. This image is a  LRGB wide band image  with Luminance layering.  Image processed at 6248x4176 resolution. Final Image size is approximately  5000x3876.

North is up in this image.  This image shows the reflection nebulae vdB 14 and vdB 15 (also known as LBN 618 anbd LBN 682 / Ced 14 respectively).  These reflection nebulae are on the left. On the right are a series of dark Nebulae LDN 1378 through 1386. Also in this area is the star cluster Stock  23.This region encompasses a portion of the emission nebula Sh2-202 / LBN 677 - which extends about 2x4 degrees.  Faint areas of red show evidence of this larger nebula.  These objects and some of the brighter stars are identified in the annotated image.  This image replaces an earlier image in the archives here. Horizontal FOV is approximately 192 arc minutes. Full size image scale is about 2.3 arcsec/pix.

Image center is located approximately - Equatorial 2000: RA: 3h 22m 45s Dec: +5927'10"


All images and content remain the property of Jim Thommes - copyright 2003 - 2022

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