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Contains:  NGC 1931, IC 417, The star φAur
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IC 417 Spider & Fly Nebula, 





    
        

            John Travis
IC 417 Spider & Fly Nebula

IC 417 Spider & Fly Nebula

Technical card

Resolution: 4585x3172

Dates:Oct. 29, 2018

Frames:
Baader Planetarium Baader H-Alpha 1,25" 7nm CCD: 150x180" (gain: 200.00) -15C bin 1x1
ZWO Blue Filter Optimized for ASI1600: 40x75" (gain: 75.00) -15C bin 1x1
ZWO Green Filter Optimized for ASI1600: 40x75" (gain: 75.00) -15C bin 1x1
ZWO Red Filter Optimized for ASI1600: 40x75" (gain: 75.00) -15C bin 1x1

Integration: 10.0 hours

Darks: ~25

Flats: ~25

Flat darks: ~25

Avg. Moon age: 19.78 days

Avg. Moon phase: 74.10%

Bortle Dark-Sky Scale: 7.00

Astrometry.net job: 2393345

RA center: 82.236 degrees

DEC center: 34.340 degrees

Pixel scale: 1.349 arcsec/pixel

Orientation: 164.922 degrees

Field radius: 1.044 degrees

Locations: Home , Huntsville, Alabama, United States

Data source: Backyard

Description

IC 417 the Spider and Fly Nebula. RHaGB. Imaged from 10/29/18 - 11/18/18.
Ha 200 gain 50 offset
RGB 75 gain 12 offset

With this image, I had just switched over to using an OAG and in doing so I got the spacing wrong by about 4mm too much. With the extra spacing, the stars suffered somewhat. Especially at the edges of the frames which I cropped out. Overall I wished I would have made the switch to an OAG along time ago! In the end, it's a much simpler setup and less to go wrong once everything is configured.

Comments

Author

JTravis1965
John Travis
License: None (All rights reserved)
2024
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IC 417 Spider & Fly Nebula, 





    
        

            John Travis