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Comet
C/2019 L3 Atlas


Object : Comet, C/2019 L3 Atlas
Coordinates/Direction : -
Object size : -
Object magnitude : -
More to know : You can read more about the comet on Seiichi Yoshida's homepage:
http://www.aerith.net/ comet/ catalog/ 2019L3/ 2019L3.html

2022-01-04, L3 Atlas

Comet C/2019 L3 Atlas
Date : 2022-01-04
Time (UT) : 18:51 to 19:13
Magnitude : 9.8
Mount : Skywatcher HEQ5, HEQ5 mount project
Guide system: Astroberry, PHD2 in dithering mode, Guide telescope 200 mm f/3.5, camera QHY5
Lens/telescope : Pentax 645 300 mm ED f/4.0, Pentax 645 300 mm project
Field : 6.9 x 4.6 degrees (at full frame)
Filter : none
Camera : Canon EOS 6D
Control system : Raspberry / Astroberry, with GPS
Exp. time : 30*30 seconds at ISO1600
Image process tool : Siril, Fitswork
Processing : Flat calibrated, dark, bias subtracted, cropped about 50%.
Site : Sweden, Stockholm, Hagsätra. Bortle class 9
Comment : This time I did find the comet. Some parameters must have been wrong two weeks earlier. One more comet on the sky and I can see it from our balcony. A 300 mm lens is a bit short for this far away comet.

2021-12-17, L3 Atlas

Comet C/2019 L3 Atlas (Click on the image to get one in full resolution, opens in a new window)
Date : 2021-12-17
Time (UT) : 21:17 to 21:43
Magnitude : 9.9
Mount : Skywatcher HEQ5, HEQ5 mount project
Guide system: Astroberry, PHD2 in dithering mode, Guide telescope 200 mm f/3.5, camera QHY5
Lens/telescope : Pentax 645 300 mm ED f/4.0, Pentax 645 300 mm project
Field : 6.9 x 4.6 degrees (at full frame)
Filter : none
Camera : Canon EOS 6D
Control system : Raspberry / Astroberry, with GPS
Exp. time : 31*30 seconds at ISO1600
Image process tool : Siril, Fitswork
Processing : Flat calibrated, dark, bias subtracted, cropped about 50%.
Site : Sweden, Stockholm, Hagsätra. Bortle class 9
Comment : The days before Christmas I had the a comet visible from our balcony. Can you find it on the photo because I can't. Have to do an investigating. Even if magnitude 9.9 is weak in a light polluted are like this it should be possible to see it.

Sky Chart and Plate solving

Comet C/2019 L3 Atlas (Click on the image to get one in full resolution, opens in a new window)

With some help from SkyChart (CdC) to get where the comet is.

Comet C/2019 L3 Atlas (Click on the image to get one in full resolution, opens in a new window)

A plate solving identify the objects on the photo, done on the Astrometry homepage..

Comet C/2019 L3 Atlas

When I compare the Sky chart where the comet is and the plate solve where the photo is taken I see that I missed the comet by 8 degrees. Some mistake done this night.

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