Comet C/2019 Y4 (ATLAS)
Taken by Jorma Ryske on April 9, 2020 @
Finland, Helsinki
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Camera Used: Unavailable Unavailable
Exposure Time: Unavailable
Aperture: Unavailable
ISO: Unavailable
Date Taken: 2020:04:10 12:02:45
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Details:
Comet C/2019 Y4 (ATLAS) Image 1) with R filter showing strongly oval shaped optocenter towards PA 95°. Image 2) is with Cyanogen CN 387nm narrowband (15nm) UV filter showing cyanogen 3883Å gas coma, exposure time 25 minutes. Image 3) is image 2 processed with CometCIEF showing UV narrowband 387nm/15nm coma/jet morphology and optocenter oval towards PA 95°. (CometCIEF Samarasinha, N. H., Martin, M. P., Larson, S. M, 2013. Cometary Coma Image Enhancement) 305/1200mm Newton, QSI690, Astrodon R, Semrock CN 387nm/15nm, CEM60. North up, east left. Jorma Ryske, Finland, Helsinki. 2020-04-09 19:10UT
Photographer's website:
https://www.taivaanvahti.fi/observations/show/89793
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