Contains: IC 342
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IC342 The Hidden Galaxy

Technical card

Imaging telescope or lens: APM LZOS 130/780 f/6 LW CNC II 130mm APO

Imaging camera: FLI ML16200

Mount: Takahashi EM-200 Temma2

Guiding telescope or lens: Orion Deluxe 50mm MiniGuider

Guiding camera: Orion SSAG

Focal reducer: Riccardi Model 1 1.0x Flattener

Software: PixInsight 1.8.5TheSkyXPS CS6

Filter: Astrodon Gen2E LRGB

Resolution: 3819x3074

Dates: Nov. 17, 2017

Frames:
Astrodon Gen2E Lum: 27x600" -30C bin 1x1
Astrodon Gen2E RGB: 21x600" -30C bin 1x1

Integration: 8.0 hours

Avg. Moon age: 28.62 days

Avg. Moon phase: 0.93%

Mean SQM: 21.40

Astrometry.net job: 1854344

RA center: 56.698 degrees

DEC center: 68.097 degrees

Pixel scale: 0.777 arcsec/pixel

Orientation: 357.110 degrees

Field radius: 0.529 degrees

Description

Similar in size to large, bright spiral galaxies in our neighborhood, IC 342 is 10 million light-years distant in Camelopardalis. IC 342 would otherwise be a prominent galaxy in our night sky, but it is hidden from clear view and only glimpsed through the veil of stars, gas and dust clouds along the plane of our own Milky Way galaxy [based on APOD writeup July2017]. This 8.0 hour LRGB image was taken on 11/17/17 at D.A.R.C.observatory, Mercey Hot Springs, CA.

Comments

Author

jeffweiss9
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Revisions

C

Used new Local Fuzzy Histogram Hyperbolization script (LFHH) in PI 1.8.5 with a lot of blending in PS CS6 to control its harshness and make sure there is no effect on star shape (3.1" FWHM, 0.54 Eccentricity unchanged to 0.5%).

D

Further diluted the LFHH contribution to the blend by another 50% to reduce any sign of harshness and other bad effects from LFHH.

Sky plot

Sky plot

Histogram

IC342 The Hidden Galaxy, 




    

        jeffweiss9