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 7023
Getting plate-solving status, please wait...
Iris nebula C4/Ced187/Cr429/LBN487/NGC7023/VdB139 widefield (c), 





    
        

            Ram Samudrala
Iris nebula C4/Ced187/Cr429/LBN487/NGC7023/VdB139 widefield (c)

Iris nebula C4/Ced187/Cr429/LBN487/NGC7023/VdB139 widefield (c)

Technical card

Resolution: 6024x4024

Dates:July 4, 2019

Frames:
Baader Planetarium UV/IR Cut: 85x120" (gain: 0.50) -15C bin 1x1
Baader Planetarium UV/IR Cut: 10x15" (gain: 0.50) -15C bin 1x1

Integration: 2.9 hours

Darks: ~135

Avg. Moon age: 1.91 days

Avg. Moon phase: 4.06%

Bortle Dark-Sky Scale: 3.00

Mean FWHM: 4.00

Temperature: 15.00

Astrometry.net job: 2783478

RA center: 315.305 degrees

DEC center: 68.207 degrees

Pixel scale: 1.690 arcsec/pixel

Orientation: 187.839 degrees

Field radius: 1.700 degrees

Locations: Ram Samudrala, Youngstown, NY, United States

Data source: Backyard

Description

This is my second image with my QHY247C. It's a widefield of the Iris nebula, a reflection nebula. I experimented with combining short exposure images with longer exposure ones on this one using HDRComposition but there's the school of thought that for each object you need to find the optimal exposure length and gain and stick with it. I'm not wedded to any single approach but obviously if the goal with an OSC is to minimise the work done, then the latter approach has more merit purely from an efficiency perspective. I also wonder if the smoky background areas could benefit from more collection but my goal is to work harder on the NB images (especially with the data collection part) and use the OSC for quicker shots (especially of things not easily accessed by NB imaging).

Comments

Author

ramdom
Ram Samudrala
License: Attribution Creative Commons
550
Like

Sky plot

Sky plot

Histogram

Iris nebula C4/Ced187/Cr429/LBN487/NGC7023/VdB139 widefield (c), 





    
        

            Ram Samudrala

In these public groups

Suburban Astrophotography