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LBN 458, 460, 462 in Lacerta

 

 CLICK ON IMAGE FOR FULL SIZE VIEW (2800x2100)

Scope: FSQ-106N at f/5, Location: DAA Observatory, Shelter Valley, CA, 24 August 2019,  Camera: ST8300M (Baader LRGB filters)

Exposure: Exposure: 16 x 13min  (1x1 bin) exposure with UV/IR block filter,  8 x 4.5 min (2x2 bin) each RGB exposures.

Processing: Data Collection -  Sequence Generator Pro (as FITs).  Subframe calibration - Pixinsight. Subframe integration (Median combine -  Winsorized Sigma Clipping) - PixInsight.  Non-linear stretching, normalization and gradient removal - PixInsight.  Generation of starless nebulosity images for later processing - starnet++. Curves, Levels, RGB combine, Luminance layering - PixInsight. Stars and Starless combine - PixInsight.  Final finishing  - Photoshop.  RGB calibration - eXcalibrator. Annotation - PixInsight, Aladin (Simbad and NED), and PhotoShop. This image is a  RGB combine with Luminance layering.  Images processed at 3352 x 2532 resolution. Final Image size is approximately  2800x2100.

North is up in this image.  This image shows a region of interstellar material, Hydrogen, and dust illuminated or energized by nearby stars. LBN 458, 460, and 462 as well as a molecular cloud (PGCC G101.29-15 46) are visible in this image. The LBN objects are nominally categorized as HII emission regions (Simbad database), so there may be some emission line illumination even though these look mostly like a dust region. No emission line data was taken for this image - only broad band spectrum data was taken so emission line characteristics cannot be verified by this image. These objects and some of the brighter stars are identified in the annotated image. Horizontal FOV is approximately 120 arc minutes. Full size image scale is 2.57 arcsec/pix.

Image center is approximately - Equatorial 2000: RA: 22h 55m 07s Dec: +4153'50"

 

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