LBN 458, 460, 462 in Lacerta
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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: +41°53'50"
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