Progress of Lunar Eclipse, HDR composite images (Jan 31, 2018)

Large-sized images loaded on new window by clicking on each flame.


Date & Time: Jan 31 2018, Times in image represent JST(+0900)
HDR composite of 6 to 9 shots
with Nik Collection HDR Efex Pro2
Optical: VIXEN 20cm(7.9") VISAC (f=1800mm, F9.0)
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...ISO800, White Balance...Daylight


This set of fifteen lunar eclipse images on Jan 31, 2018 have been HDR (High Dynamic Range)-composed of several shots exposed with different EVs to represent wide differences of brightness. Our naked eyes can clearly recognize both lunar surface features in shadow and un-eclipsed parts same as these images. Unfortunately images of the first half have a bit cloudy color due to the haze and thin clouds, maybe you can detect that the shadow near the edge of Umbra has a bit bluished color, so-called the "Turquoise fringe". It's considered that the impressive color is due to the passed and refracted sunlight through the ozone layer in the Earth atomosphere.
  All images are displayed turning the celestial north direction upward.



Progress of Lunar Eclipse, change of coloration
Lunar Eclipse, movement of Moon

Copyright(c) 2018 by Naoyuki Kurita, All rights reserved.
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