46P/Wirtanen heading towards perihel
Taken by V. Mette on December 9, 2018 @
iTelescope T09 - Siding Spring Observatory, NSW, Australia
Click photo for larger image
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Camera Used: Finger Lakes Instrumentation (FLI) MicroLine ML 16803
Exposure Time: 600/1
Aperture: f/5.3
ISO: Unavailable
Date Taken: 2018:12:09 12:50:23
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Details:
Comet Wirtanen will soon reach its shortest distance to the sun. In less than a week, on December, 12th its distance to the sun is the shortest during the actual orbital revolution (158.000.000 km) - that is about the same distance than between sun and earth.
On December, 16th Wirtanen will pass earth in less than 12.000.000 km distance - this should pump up its coma diameter and angular velocity furthermore.
Remote-telescope - iTelescope T09
Tele Vue NP-127 FLI
Frame size: 3 x 3 deg. (16 MPix. sensor)
L/R/G/B-channel @ 2x binning
In addition to the stacked L/R/G/B-image registered on stars you will find an alternative L/R/G/B stacked on the comets nucleus. It will show the comets shape more lifelike, but also shows all other objects multiple (in 3 colors and L-channel).
Compare with Wirtanen on December, 8th @
http://spaceweathergallery.com/indiv_upload.php?upload_id=149751
Photographer's website:
No URL provided.
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