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Contains:  California nebula, NGC 1499, The star 50Per, The star ξPer
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Burning California - NGC1499 - Hybrid hubble SHO and broadband palette - LRGB composition, 





    
        

            David Lindemann
Burning California - NGC1499 - Hybrid hubble SHO and broadband palette - LRGB composition

Burning California - NGC1499 - Hybrid hubble SHO and broadband palette - LRGB composition

Technical card

Resolution: 4012x3994

Dates:Nov. 2, 2017

Frames: 1x170280"

Integration: 47.3 hours

Avg. Moon age: 12.86 days

Avg. Moon phase: 95.94%

Astrometry.net job: 1799473

RA center: 60.528 degrees

DEC center: 36.379 degrees

Pixel scale: 3.497 arcsec/pixel

Orientation: 0.012 degrees

Field radius: 2.750 degrees

Locations: Observatoire personnel, Vérossaz, Valais, Switzerland

Description

To improve colors and details, I have used an hybrid color palette composed by narrowband, red, green and blue data that shows
together primary and complementary colors along a continuum.

To make this image, I have mixed up data coming from my new and my old setups

My new setup is a Takahashi FSQ106 equiped with a Optec Gemini Focuser-Rotator and an Andore Apogee Alta F16M (KAF-16803 monochrome)
My old setup is a Takahashi FSQ106ED with original focuser and captain wheel and a Apogee Alta U8300 (KAF-8300 monochrome)

Data captured 10/15/2017, 10/16/2017, 10/25/2017, and 10/206/2017 with my new setup:
16 x 1200 H-a unbinned = 5h20
22 x 300s Red unbinned = 1h50
22 x 300s Green unbinned = 1h50
26 x 300s Blue unbinned = 2h10

Data captured 09/21/2013, 09/22/2013, 09/23/2013, 09/24/2013, 10/31/2013, and 11/06/2013 with my old setup (8 pannels mosaic):
40 x 1200s H-a unbinned = 13h20
34 x 1200s OIII unbinned = 11h20
35 x 1200s SII unbinned = 11h40

Total exposure 47h30

---------------------------------------------------------------------------------------------
Instruments: Takahashi FSQ106ED @f/5 530mm focal length with ONAG XT (http://www.innovationsforesight.com/), Optec Gemini Focuser-Rotator, Apogee Alta F16M + 7 positions filter wheel @-25°C and Apogee Alta U8300 monochrome @-30°C and Astrodon narrowband H-alpha, OIII and SII 5nm filters and Astrodon broadband RGB filters on 10micron GM2000 HPS II
Softwares: SkySurveyor for MaximDL as orchestrator - MaximDL for guiding and capture - SharpLock to keep the optical train perfectly focused - CCDStack to calibrate, register, normalize, data reject and combine - Registar and PixInsight for mosaic assembly - Photoshop CC and PixInsight for LRGB composition and multiscale non-linear streching - Photoshop and APF-R for sharpening http://www.cedic.at/apfr/. APF-R does not do only sharpening it allows to reveal hidden structure that are embedded in the signal.

Comments

Author

dlindemann
David Lindemann
License: None (All rights reserved)
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Burning California - NGC1499 - Hybrid hubble SHO and broadband palette - LRGB composition, 





    
        

            David Lindemann

In these public groups

Deep Sky Mosaics
Narrowband imaging