Comet Borrelly on Feb 26, 2022


Date & Time: Feb 26 2022, from 18:50 to 19:26 JST(+0900)
Composed 10 shots with 4 minutes exposed
Optical: Meade 25cm(10") Schmidt-Cassegrain with conversion lens (f=1600mm, F6.3)
with BaaderPlanetarium Moon&Skyglow filter
Auto-guided with Meade LX200 Equatorial & Lacerta M-GEN
Digital Camera: Nikon D810A
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording Format...14bit CCD-RAW, converted to 16bit TIFF(4080×4080)
Device Size...20×20mm
Sensitivity...ISO4000, White Balance...Daylight


The comet 19P Borrelly in that day has positioned at about 6.5 degrees ESE of αAri (Hamal) in the evening higher western skies. The comet has a greenish coma with brightness of around 9th or 10th magnitude and a dimmed tail in eastern direction. Currently the comet has started down its brightness after the maximum. For a while the comet can be observed under good conditions.
  View angle: 0.70×0.70°


2017K2 PanSTARRS on early morning of Feb 26, 2022
Borrelly on Feb 5, 2022

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