Celestial hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  35 nu.02 Sgr  ·  NGC 6717  ·  The star ν2Sgr
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Comet 9P/Tempel 1 (quite literally) dashing through the star field of Sgr past the NGC 6717 globular cluster, 



    
        

            Alexandr Zaytsev
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Comet 9P/Tempel 1 (quite literally) dashing through the star field of Sgr past the NGC 6717 globular cluster

Revision title: Comet 9P/Tempel 1 dashing through the star field of Sgr - the attempt to bring up the tail

Getting plate-solving status, please wait...
Comet 9P/Tempel 1 (quite literally) dashing through the star field of Sgr past the NGC 6717 globular cluster, 



    
        

            Alexandr Zaytsev
Powered byPixInsight

Comet 9P/Tempel 1 (quite literally) dashing through the star field of Sgr past the NGC 6717 globular cluster

Revision title: Comet 9P/Tempel 1 dashing through the star field of Sgr - the attempt to bring up the tail

Acquisition details

Dates:
March 11, 2022
Frames:
43×180(2h 9′)
Integration:
2h 9′
Avg. Moon age:
8.32 days
Avg. Moon phase:
59.87%

RA center: 18h55m08s.136

DEC center: -22°4408.72

Pixel scale: 0.274 arcsec/pixel

Orientation: 43.732 degrees (flipped)

Field radius: 0.186 degrees

WCS transformation: thin plate spline

More info:Open 

Resolution: 3481x3481

File size: 5.2 MB

Data source: Amateur hosting facility

Remote source: ChileScope

Description

A composite of 129min integral of 9P/Tempel 1 [1] (currently about +14m) quickly passing through the star fields of Sgr near NGC 6717 (Palomar 9) [2] globular cluster on Mar 5, 2022 including:

- 15min of L exposure using Telescope #1 (ASA-RC D = 1m f/6.8, FLI ProLine 16803) system of ChileScope observatory captured on a single imaging session carried out of Mar 4, 2022 (5 sequential 180s frames with comet present in the field of view).

- 114min of LRGB exposure using Telescope #5 (Officina Stellare Riccardi-Honders RH200 D = 200mm f/3, FLI Microline 16200) system ChileScope observatory captured on 5 separate imaging sessions carried out on Mar 4, 5, 6, 7, 11, 2022 (only L exposures collected on Mar 4, 5, 2022, and only RGB - on Mar 6, 7, 11).

Only a small portion of the T5 frame is used as color overlay only, while the full T5 images is also shown in [3] (comet is too small and dim to show up in that wide angle image, even though it must have been present there during Mar 4, 5, 6, 2022 sessions).

A hint of the tail of the comet is detectible, but not obvious.

[1] http://aerith.net/comet/catalog/0009P/2022.html

[2] https://esahubble.org/images/potw2136a/

[3] https://www.astrobin.com/thl0sp/

Comments

Revisions

  • Comet 9P/Tempel 1 (quite literally) dashing through the star field of Sgr past the NGC 6717 globular cluster, 



    
        

            Alexandr Zaytsev
    Original
  • Final
    Comet 9P/Tempel 1 (quite literally) dashing through the star field of Sgr past the NGC 6717 globular cluster, 



    
        

            Alexandr Zaytsev
    B

B

Title: Comet 9P/Tempel 1 dashing through the star field of Sgr - the attempt to bring up the tail

Description: 15min integral L exposure of 9P/Tempel 1 (currently about +14m) quickly passing through the star fields of Sgr near NGC 6717 (Palomar 9) globular cluster - captured using Telescope #1 (ASA-RC D = 1m f/6.8, FLI ProLine 16803) system of ChileScope observatory. The wider field of view for this area is also available under [1].

The composite insert in the lower left corner shows the attempt of bringing up the tail of the comet by running the difference between the first frame and the last frame (frames 1 and 5) in the sequence and suppressing all non-diffuse objects on those (note the 1.5x magnification applied with respect to the source images made for convenience of viewing).

[1] https://www.astrobin.com/thl0sp/

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Sky plot

Sky plot

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Comet 9P/Tempel 1 (quite literally) dashing through the star field of Sgr past the NGC 6717 globular cluster, 



    
        

            Alexandr Zaytsev