Hemisphere:  Northern  ·  Constellation: Camelopardalis (Cam)  ·  Contains:  IC 342
Getting plate-solving status, please wait...
IC342 (Hidden Galaxy) in Ha NIR LRGB, 



    
        

            Remco Kemperman
IC342 (Hidden Galaxy) in Ha NIR LRGB
Powered byPixInsight

IC342 (Hidden Galaxy) in Ha NIR LRGB

Getting plate-solving status, please wait...
IC342 (Hidden Galaxy) in Ha NIR LRGB, 



    
        

            Remco Kemperman
IC342 (Hidden Galaxy) in Ha NIR LRGB
Powered byPixInsight

IC342 (Hidden Galaxy) in Ha NIR LRGB

Equipment

Imaging Telescopes Or Lenses
Skywatcher 150/750 PDS 150/750 PDS
Imaging Cameras
QHYCCD QHY294 Pro M
Mounts
HEQ5 PRO
Filters
Baader planetarium B (CMOS optimized 36mm) · Baader planetarium G (CMOS optimized 36mm) · Baader Planerarium R (CMOS optimized 36mm) · Baader Planerarium Ha 6.5nm (CMOS optimized 36mm) · Astronomik ProPlanet 642 BP IR-Pass Filter 642-840nm · Baader Neodynium Moon & Skyglow
Accessories
Bahtinov masker · Skywatcher 0.9x coma corrector f/5
Software
N.I.N.A. Nighttime Imaging 'N' Astronomy · PixInsight PixInshight Core 1.8 Ripley · EQASCOM · Adobe Phosotshop CS3 · PHD2
Guiding Telescopes Or Lenses
ZWO 60mm Guidescope ZWO 60/280 GUIDESCOPE
Guiding Cameras
ZWO ASI 120 MM Mini ASI120 MM Mini Guidecam

Acquisition details

Dates:
Feb. 11, 2021 ·  Feb. 12, 2021 ·  Jan. 17, 2022 ·  Jan. 27, 2022
Frames:
Astronomik ProPlanet 642 BP IR-Pass Filter 642-840nm: 30x240" (2h) (gain: 1600.00) -15°C bin 2x2
Baader Neodynium Moon & Skyglow: 75x300" (6h 15') (gain: 1600.00) -15°C bin 2x2
Baader Planerarium Ha 6.5nm (CMOS optimized 36mm): 5x360" (30') (gain: 1600.00) -15°C bin 2x2
Baader Planerarium R (CMOS optimized 36mm): 51x150" (2h 7' 30") (gain: 1600.00) -15°C bin 2x2
Baader planetarium B (CMOS optimized 36mm): 50x150" (2h 5') (gain: 1600.00) -15°C bin 2x2
Baader planetarium G (CMOS optimized 36mm): 49x150" (2h 2' 30") (gain: 1600.00) -15°C bin 2x2
Integration:
15h
Darks:
22
Flats:
40
Flat darks:
40
Avg. Moon age:
17.12 days
Avg. Moon phase:
32.29%
Bortle Dark-Sky Scale:
6.00

Basic astrometry details

Astrometry.net job: 5462280

RA center: 03h46m44s.4

DEC center: +68°0600

Pixel scale: 0.704 arcsec/pixel

Orientation: 97.541 degrees

Field radius: 0.396 degrees

Resolution: 2912x2824

Locations: Backyard Woerden, Woerden, Netherlands

Data source: Backyard

Description

IC 342 is a galaxy that lies behind the milky way dust. This obscures the signal from the galaxy. The shorter the wavelength the more the light form IC342 gets scattered. This makes the galaxy appear reddish.

To boost signal in the image, I made a synthetic luminance layer from the luminance filter (7 hours) and from the data i shot with an Astronomik IR642 Pro planet filter (2,5 hours).  This filter is a NIR pass filter, and passe 642 to 840 nm. The data from the NIR filter was much cleaner then the Luminance filter, while being illuminated only 1/3 of the time.

This shows that LRGB objects in the milky way plane can really benefit form IR Pass filters.

Comments

Revisions

  • Final
    IC342 (Hidden Galaxy) in Ha NIR LRGB, 



    
        

            Remco Kemperman
    Original
  • IC342 (Hidden Galaxy) in Ha NIR LRGB, 



    
        

            Remco Kemperman
    B

B

Title: NIR-NIR-L representation

Description: This was the RGB image from the NIR 642-840nm, NIR >804 and luminance filter I made. Just to show that NIR penetrates the galactic dust better as the image comes out green

Uploaded: ...

Sky plot

Sky plot

Histogram

IC342 (Hidden Galaxy) in Ha NIR LRGB, 



    
        

            Remco Kemperman