MOUSE-OVER
IMAGE FOR STARLESS VIEW
CLICK
ON IMAGE FOR FULL SIZE VIEW
(4555x6503)
Scope:
FSQ-106N at f/5;
Location: DAA Observatory, Shelter
Valley, CA;
Dates: 11, 12 February, 2024;
Camera: ASI2600MM
(Astronomik
type 2c LRGB filters)
Exposure:
Exposure: Lum - 150 x 3 min (gain-101
1x1), RGB - 32 x 2 min (gain-101 1x1) each RGB exposures.
Processing: Data
Collection - N.I.N.A. Sequencer (as FITs). Sub-frame calibration -
Pixinsight (WBPP). Sub-frame registration and integration (Average combine
- Linear clipping) - PixInsight (WBPP). 2x Drizzle of Lum stack - PixInsight
(WBPP). Noise reduction - NoiseXTerminator - PixInsight.
Non-linear stretching, normalization and gradient removal - PixInsight.
Photometric RGB calibration (SPCC) - PixInsight. Deconvolution of Lum and
RGB combine -
BlurXTerminator. Generation of starless nebulosity Lum and RGB images for later processing - Star
XTerminator. Curves, Levels, RGB
combine - PixInsight. Lum Stars and Lum starless combine - PixInsight. Final finishing -
Affinity Photo. Annotation - PixInsight, Aladin (Simbad),
and Affinity Photo. This image is a starless RGB composition - with RGB stars added. Image processed at 12496x8352 resolution. Final Image size is approximately
4555x6503 (in Portrait aspect).
North is left in this image. The
molecular cloud, MBM 25 comprises the field
in this image. Within MBM 25 are LBN 801 and 811 as well as cold clump
objects from the PGCC catalog. MBM and PGCC objects were observed in long
wavelength - millimeter, micrometer, and far IR spectrums (non
optical). However, a high percentage of MBM objects have optical emissions
according to catalog authors and are seen in this image. PGCC objects in some
cases also have optical emissions - in this image both size and locations
of these cold clumps align with structures in this image. Nearby stars
illuminate the cloud structure producing multi colored reflection emissions seen
in this image.
In addition to
clouds and dust cold clumps, this image also contains an astonishing number of
Galaxies and Quasars - 80 galaxies from just the PGC galaxy catalog alone and 68
Quasars down to 20 Magnitude. Some of the more noticeable galaxies can be seen
in the starless mouse-over and can be seen in the full size image (at full
zoom). Eight Quasars are identified with redshift over 2.5 and light
travel time over 11.2 billion years.
These objects
(limited to the most significant) and
some of the brighter stars are identified in the annotated
image. Vertical FOV is approximately
2.38 degrees. Full size
image scale is about 1.32 arcsec/pix.
Image
center is approximately - Equatorial 2000: RA: 08h 02m 39s Dec: +45°58'20"
