NGC 7380, Sh2-142, LBN 511 "Wizard Nebula"

CLICK ON IMAGE FOR FULL SIZE VIEW (4144x2822)

Scope: Celestron 9.25 Edge HD 235 mm at f/7; Location: DAA Observatory, Shelter Valley, CA;  Dates:  10, 14 July 2023; Camera: ASI294MM (Baader  Ha OIII RGB Filters)

Exposure: Ha 84 x 3.5 minutes (gain-121 2x2) ,  OIII 84 x 3.5 minutes (gain-121 2x2), RGB - 24 each x 2 minutes  - (gain-121 2x2).

Processing: Data Collection -  N.I.N.A. (as FITs).  Sub-frame calibration - Pixinsight (WBPP). Sub-frame  registration and integration (Average combine -  Winsorized sigma clipping,  2X drizzle for Ha, OIII) - PixInsight (WBPP).  NoiseXTerminator (RGB, Ha, OIII) - PixInsight.  Non-linear stretching for Ha and OIII - PixInsight.    RGB combine and stretching, Photometric RGB calibration (SPCC)  - PixInsight. Generation of starless Ha, OIII, and RGB image for later processing - StarXTerminator  (PixInsight.)  De-convolution - BlurXTerminator (AI4) - PixInsight.  Ha and OIII color mapping is a modified HOO palette of the starless stacks - PixInsight.  RGB star image is screened into the Ha and O3 narrow band starless construction - Pixinsight. Final finishing  - Affinity Photo.  Annotation - PixInsight, Aladin (Simbad), and Affinity Photo. This image is a  modified HOO mapping with RGB stars.  Image processed at 8288x5644 resolution (2x drizzle stacks). Final crop Image size is approximately 4244x2822.

North is to the left in this image (about 80 degrees east of north).  It is a close up of  NGC 7380 / Sh2-142 / LBN511 "Wizard Nebula" nebula. NGC 7380 is designated as an open cluster. Sh2-142 and LBN 511 are designated as HII regions and generally refer to the same structure. The emission structure is ionized by star HD215835 - a variable star also known as DH Cep. It was later discovered that HD215806 is also contributing ionization energy  for the Hydrogen and Oxygen emission. 

The distance of the emission complex is estimated to be from 9,800 to 10,400 light years.  The prominent dark nebula in the lower left of the image is Dobashi 3338.  These objects, information, and some of the brighter stars are identified in the annotated image.  The Horizontal FOV is approximately 0.673 degrees. Full size image scale is approximately 0.584 arcsec/pix.

Image Center approximately - Equatorial 2000: RA: 22h 47m 09s Dec: 58°04'34"

All images and content remain the property of Jim Thommes - copyright 2003 - 2024

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