Celestial hemisphere:  Northern  ·  Constellation: Canes Venatici (CVn)  ·  Contains:  Solar system body or event
Comet C/2021 A1 (Leonard) - November 12, 2021, Paul Macklin
Comet C/2021 A1 (Leonard) - November 12, 2021
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Comet C/2021 A1 (Leonard) - November 12, 2021

Comet C/2021 A1 (Leonard) - November 12, 2021, Paul Macklin
Comet C/2021 A1 (Leonard) - November 12, 2021
Powered byPixInsight

Comet C/2021 A1 (Leonard) - November 12, 2021

Equipment

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Acquisition details

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Description

Leonard is getting brighter! This image integrates 3 hours of 3 min exposures with a small 60mm APO refractor.  

The star trails help show the comet's motion over the course of 3 hours. 

Processing details: 
1) Stack 60 x 3 min in AstroPixelProcessor using comet registration
2) Light pollution removal in APP as normal, export to 16 bit TIFF
3) Crop to 1500 x 1500 in Photoshop
4) Auto-tone, Auto-contrast, Auto-color, export to TIF
5) minimal denoising in Topaz: 1/100 denoise in "severe" profile, 0 on all other settings
6) Final touchup in photoshop: auto-levels. 

Compare to a 2-hour integrated exposure on November 3, 2021: https://www.astrobin.com/w7e57d/

Comments

Revisions

  • Comet C/2021 A1 (Leonard) - November 12, 2021, Paul Macklin
    Original
  • Final
    Comet C/2021 A1 (Leonard) - November 12, 2021, Paul Macklin
    B

B

Description: Proper crop to 1500 x 1500 for consistency across imaging sessions.

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Sky plot

Sky plot

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Comet C/2021 A1 (Leonard) - November 12, 2021, Paul Macklin

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Comets