Celestial hemisphere:  Northern  ·  Constellation: Ursa Minor (UMi)  ·  Contains:  Solar system body or event
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Comet C/2022 E3 (ZTF), Eugene Ciccarelli
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Comet C/2022 E3 (ZTF)

Revision title: Comet and stars stacked separately, then combined.

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Comet C/2022 E3 (ZTF), Eugene Ciccarelli
Powered byPixInsight

Comet C/2022 E3 (ZTF)

Revision title: Comet and stars stacked separately, then combined.

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Description

Comet C/2022 E3 (ZTF) through the travel scope from the Courtwood Inn in dark-sky Murphys, CA. The original image was live-stacked without treating the comet; in other words, it lined up the images to stack by aligning the stars. Thus, the comet shows as a small line, since it moved with respect to the stars during the 10 minutes of imaging. Later I tried my hand at redoing the stacking in PixInsight using its ability to align the comet in each image. That revision shows the stars arcing around the comet. In a third revision I tried removing the stars and stacking and aligning stars and just-comet images separately, combining them afterwards.

Comments

Revisions

  • Comet C/2022 E3 (ZTF), Eugene Ciccarelli
    Original
  • Comet C/2022 E3 (ZTF), Eugene Ciccarelli
    B
  • Final
    Comet C/2022 E3 (ZTF), Eugene Ciccarelli
    C

B

Title: Aligning the comet in each image, rather than stars.

Description: This revision redid the stacking in PixInsight. The images were aligned so that the comet is what stays in place. The result is the star arcs.

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C

Title: Comet and stars stacked separately, then combined.

Description: In this revision, the stars were removed into their own images, leaving starless comet images. Each set was aligned and stacked separately. (The star set aligned on stars; the comet set aligned on the comet.) The result has streaks, which I need to understand and improve my technique. But in among the streaks you can make out the comet tail.

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Sky plot

Sky plot

Histogram

Comet C/2022 E3 (ZTF), Eugene Ciccarelli