Comet Iwamoto on Feb 23, 2019


Date & Time: Feb 23 2019, from 19:29 to 19:52 JST(+0900)
Composed 12 shots with 2 minute exposed
Optical: VIXEN 20cm(7.9") VISAC with conversion lens (f=1278mm, F6.4)
with BaaderPlanetarium Moon&Skyglow filter
Auto-guided with TAKAHASHI EM-200 Equatorial
Digital Camera: Nikon D810A
Location: Hiraiso, Hitachi-naka city, Ibaraki pref.

Camera Settings: Recording Format...14bit CCD-RAW, converted to 16bit TIFF(7360×4912)
Device Size...FX format (36×24mm)
Sensitivity...ISO4000, White Balance...Daylight


The comet C/2018Y1 Iwamoto in that day was found in the evening zenith skies positioned at 5.5 degrees northeast of M37, an open cluster in Auriga. The comet is withdrawing from the Earth with a coma brightness of 7th magnitude, and a diameter has shrunk to about 10 arc minutes.
  The image has cropped with equivalent f=1600mm (View angle: 1.28×0.85°)


Iwamoto on Mar 1, 2019
Iwamoto on Feb 16, 2019

Copyright(c) 2019 by Naoyuki Kurita, All rights reserved.
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