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Contains:  The star 26UMa, The star θUMa
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Comet 46P/Wirtanen, 


            José J. Chambó
Comet 46P/Wirtanen
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Technical card

Imaging telescopes or lenses:GSO Newton 8" f/4

Imaging cameras:Atik 383L+


Guiding telescopes or lenses:GSO Newton 8" f/4

Guiding cameras:Meade DSI

Software:Jasc Software Paintshop ProMaximDL5PixInsight 1.8

Filters:Astrodon Series 2 LRGB

Accessory:Teleskop-Service Coma Corrector

Dates:Feb. 10, 2019

Frames: 8x120"

Integration: 0.3 hours

Avg. Moon age: 5.06 days

Avg. Moon phase: 26.31%

Basic astrometry details job: 2586156

RA center: 9h 30' 51"

DEC center: +52° 4' 40"

Pixel scale: 3.430 arcsec/pixel

Orientation: 1.478 degrees

Field radius: 0.895 degrees

Resolution: 1500x1132

Data source: Backyard


46P/Wirtanen @ February 10,2019 01:46 UT

Comet 46P/Wirtanen photographed on February 10th 2019 when passing near bright star Theta Ursae Majoris of magnitude 3. After its maximum with magnitude 4 on past December, here the comet has dropped until magnitude 8 with a greenish coma which also has reduced condensation and angular size to 10 arcminutes.

Acquisition details:
Telescope GSO 8" N f/3.8.
Camera Atik 383L+.
L=8x120s bin1 + RGB=3x60s bin2
From Vallés, Valencia (Spain).

José J. Chambó (

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José J. Chambó
License: None (All rights reserved)

Sky plot

Sky plot


Comet 46P/Wirtanen, 


            José J. Chambó