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IC 1470 (Sh2-156) Region



Scope: Explore Scientific MN152 Maksutov Newtonian at f/4.8, Location: DAA Observatory, Shelter Valley, CA,  7 August 2019, Camera: ST8300M (Baader Ha LRGB filters)

Exposure: Exposure:  12 x 10 min (1x1 bin) exposure with IR/UV Block filter, 12 x 10 min (2x2 bin) Ha filter exposure,  8 x 4 min (2x2 bin) RGB exposures.

Processing: Data Collection -  Sequence Generator Pro (as FITs).  Subframe calibration and registration - PixInsight. Subframe integration (Median combine -  Winsorized Sigma Clipping) - PixInsight.  Non-linear stretching, normalization and gradient removal - PixInsight.  Generation of starless nebulosity images (Ha and Lum) - starnet++.  Starless color mapping and LRGB stars color mapping - PixInsight. Stars and Starless combine - PixInsight. Final finishing  - Photoshop.  RGB calibration - eXcalibrator. Annotation - PixInsight, Aladin (Simbad), and PhotoShop. This image is a  modified Ha (starless) narrow band  and Lum (starless) mapping with RGB stars separately added.  Images processed at 3352 x 2532 resolution. Final Image size is approximately  2800 x 2100.

North is up in this image. The bright nebulosity on the left is a portion of the large emission nebula Sharpless 2-157. IC 1470 (also known as Sharpless 2-156) is the small emission nebula in the right center of the image. Also spread around this field are four open clusters with the most significant being NGC 7510 in the upper left of the image. Other HII regions are objects from the BFS catalog (Blitz, Fich, Stark). They are BFS 15, 16, 17, 18, 19. The distance of IC 1470 is estimated to be about 12,000 light years; the distance to NGC 7510 is estimated to be about 6,770 light years.  These objects and some of the brighter stars are shown in the annotated image.   Horizontal FOV is about 85'. Image resolution on the full size image is about 1.82 arcsec/pix. 

Image center is approximately - Equatorial J2000: RA: 23h 07m 18s Dec: +6021'40"


All images and content remain the property of Jim Thommes - copyright 2003 - 2019

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