M16, Eagle Nebula, and "Pillars of Creation"
M16, Eagle Nebula, and "Pillars of Creation"
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CLICK ON IMAGE FOR FULL SIZE VIEW (3325x2495) Scope: Celestron 9.25 Edge HD 235 mm at f/7, Location: DAA Observatory, Shelter Valley, CA, 17, 21 May, 14 June, 2023, Camera: ASI294MM (Baader Ha OIII RGB Filters) Exposure:
Ha 70 x 3.5 minutes (gain-180 2x2) , OIII 75 x 3.5 minutes (gain-180 2x2),
RGB - 32 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 Clipping Rejection) - PixInsight (WBPP). Mure Denoise - PixInsight. Non-linear
stretching for Ha 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). Ha and OIII color mapping is a combination of
FORAXX and HOO palette - PixInsight. Final finishing - Affinity Photo. Annotation - PixInsight, Aladin
(Simbad and NED), and Affinity
Photo. This image is a Modified HOO mapping with RGB stars. Image processed at
4144x2822 resolution. Final crop (above) Image size is approximately
2217x1663; final full FOV is approximately 6122x4155. The crop image
above orientation
is 43.5 degrees CCW from North up. The
full FOV image below is oriented North up. The Crop orientation is the same as
that of the famous Hubble "Pillars of Creation" image from 1995. M16 CORE FULL FIELD OF VIEW
CLICK ON IMAGE FOR FULL SIZE VIEW (6122x4155) North is up in this image. This image shows the core of IC 4703 (LBN 67, Eagle Nebula). The star cluster associated with this nebulosity is NGC 6611 (M16) . This star cluster is about 5,762 light years distant. Within this core area are several named objects. Three pillars are named (Pillar II, IV, V); Pillars II and IV make up the well known and famous Hubble telescope image called "The pillars of Creation". Also within this core area is the Herbig-Haro object HH 216 These objects, information, and some of the brighter stars are identified in the annotated image. The Horizontal FOV is approximately 39.3 arc minutes. Full size image scale is approximately 0.36 arcsec/pix. Image Center approximately - Equatorial 2000: RA: 18h 18m 50s Dec: -13°50'19"
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