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 OSH), 



    
        

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

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

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

Integration: 7.6 hours

Darks: ~8

Flats: ~8

Flat darks: ~8

Avg. Moon age: 12.55 days

Avg. Moon phase: 15.65%


Basic astrometry details

Astrometry.net job: 1414944

RA center: 2h 43' 19"

DEC center: +61° 6' 21"

Pixel scale: 4.562 arcsec/pixel

Orientation: 175.755 degrees

Field radius: 3.603 degrees


Resolution: 1824x1216

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

Data source: Traveller

Description

In this post processing version I used drizzle color synthesis in Deep Sky Stacker to try to get my resolution back. I find it surprising how much the choice of color synthesis algorithm affects detail, hue and saturation. I created both starless and star subframes by separating the RGB into individual subframes. The stars only subframes used only the UHC captured data, the RGB were separated out, and then recombined with R as R, R as G, and 50% G as B. The recombined stars subframe was then converted to monochromatic, and used as a synthetic L subframe which was layered back onto the starless subframe. Most of the chromatic aberrations were hidden away.

Comments

Sky plot

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Histogram

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



    
        

            Gilbert Ikezaki