Cookie consent

AstroBin saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing AstroBin without changing the browser settings, you grant us permission to store that information on your device.

I agree
Contains:  NGC 1893, IC 410
Getting plate-solving status, please wait...
The Tadpole Nebula (IC410), 





    
        

            Luca Marinelli
The Tadpole Nebula (IC410)

The Tadpole Nebula (IC410)

Technical card

Resolution: 3150x2499

Dates:Dec. 5, 2018Dec. 6, 2018Dec. 7, 2018Dec. 8, 2018Dec. 25, 2018Jan. 13, 2019

Frames:
Astrodon Narrowband 3nm Ha: 36x360" (gain: 139.00) bin 1x1
Astrodon Narrowband 3nm Ha: 19x300" (gain: 139.00) -20C bin 1x1
Astrodon Narrowband 3nm OIII: 47x300" (gain: 139.00) -20C bin 1x1
Astrodon Narrowband 3nm OIII: 1x360" (gain: 139.00) -20C bin 1x1
Astrodon Narrowband 3nm SII: 23x360" (gain: 139.00) -20C bin 1x1
Astrodon Narrowband 5nm SII: 19x300" (gain: 139.00) -20C bin 1x1

Integration: 13.1 hours

Darks: ~40

Flats: ~20

Flat darks: ~40

Bias: ~100

Avg. Moon age: 13.73 days

Avg. Moon phase: 22.89%

Bortle Dark-Sky Scale: 5.00

Astrometry.net job: 2578051

RA center: 80.693 degrees

DEC center: 33.354 degrees

Pixel scale: 0.911 arcsec/pixel

Orientation: 173.720 degrees

Field radius: 0.508 degrees

Data source: Backyard

Description

The Tadpole Nebula is an emission nebula in the constellation Auriga. The Tadpoles proper are rich in hydrogen and sulphur emissions and stand out against a background of mostly oxygen signal.

To create the starless version for processing of the narrowband data, I used the code Starnet by Nikita Misiura, folowed by clean-up in Photoshop CC. Reference: https://www.astrobin.com/339099/

Version A: Wide crop of the IC410 nebula region
Version B: Tight crop of the Tadpoles
Version C: Starless image of IC410
Version G: No tone mapping. I decided to reprocess the data and was a more natural palette of colors starting from cross-blended SHO.

All data acquired with ZWO ASI1600MM Pro, Gain=139, Offset=50. 75% of acquired data was retained for processing (discarded subs were eliminated due to bad seeing or wind).

Comments

Author

lucam_astro
Luca Marinelli
License: None (All rights reserved)
4427
Like

Revisions

  • The Tadpole Nebula (IC410), 





    
        

            Luca Marinelli
    Original
  • The Tadpole Nebula (IC410), 





    
        

            Luca Marinelli
    B
  • The Tadpole Nebula (IC410), 





    
        

            Luca Marinelli
    C
  • Final
    The Tadpole Nebula (IC410), 





    
        

            Luca Marinelli
    G

B

Tight crop around the Tadpoles.

C

Starless interpretation of IC410.

G

Reprocessed the data without tone mapping

Sky plot

Sky plot

Histogram

The Tadpole Nebula (IC410), 





    
        

            Luca Marinelli