Hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  IC 1795  ·  IC 1805  ·  IC 1848  ·  NGC 1027  ·  NGC 896
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IC1805 Heart and IC1848 Soul Nebulae (Not So NB OHS), 


            Gilbert Ikezaki
IC1805 Heart and IC1848 Soul Nebulae (Not So NB OHS)
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IC1805 Heart and IC1848 Soul Nebulae (Not So NB OHS)

Technical card

Imaging telescopes or lenses: Canon EF 200mm f/2.8L II USM

Imaging cameras: Canon EOS 60Da

Mounts: Celestron Advanced VX

Guiding telescopes or lenses: Orion Deluxe Mini 50mm Guide Scope with Helical Focuser

Guiding cameras: Orion StarShoot AutoGuider

Software: Digital Photo Professional  ·  Deep Sky Stacker  ·  HDRsoft Photomatix Pro 5  ·  Straton  ·  Stark Labs Nebulocity 3

Dates:Dec. 5, 2015Dec. 12, 2015

Sii: 14x960" ISO3200 bin 1x1
UHC: 29x480" ISO1600 bin 1x1

Integration: 7.6 hours

Darks: ~8

Flats: ~8

Flat darks: ~-5

Avg. Moon age: 12.55 days

Avg. Moon phase: 15.65%

Basic astrometry details

Astrometry.net job: 1427938

RA center: 2h 43' 17"

DEC center: +61° 6' 10"

Pixel scale: 4.563 arcsec/pixel

Orientation: 175.756 degrees

Field radius: 3.603 degrees

Resolution: 1824x1216

Locations: SDAA Tierra Del Sol, Boulevard, California, United States

Data source: Traveller


Another variation of color mapping. There are six possible permutations of three items taken three at a time. I decided I needed to see what each color map looks like. Actually bicolor has even more permutations. There are three ways that three things can be taken two at a time; and there are five ways that two things can be taken three at a time. This results in a total of 15 narrowband bicolor variations that are possible. Yet we tend to use only HOO. Maybe some day I'll tackle a bicolor color mapping series, but for this series three color narrowband color mapping is enough. This is also a different mix and match of processing methods using super pixel colors with synthetic drizzle L channel.


Sky plot

Sky plot


IC1805 Heart and IC1848 Soul Nebulae (Not So NB OHS), 


            Gilbert Ikezaki