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Venus nightside at 1000nm 25th April 2020

Image

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About this observation
Observer
Martin Lewis
Time of observation
25/04/2020 - 19:52
Object
Venus
Observing location
StAlbans, UK
Equipment
444mm Dobsonian
ASI174MM
Edmunds 1000nm filter 25nm bandwidth
Exposure
22mins accumulated exposure time
Tags

One composite image from several gathered over the last few days attempting to capture surface details on the night-side of Venus using a 1000nm filter with 25nm bandwidth. This particularly photogenic image is 21.6mins of accumulated exposure using an ASI174MM camera at prime focus on my 444mm f4.4mm Newtonian. Imaging has used the ASI camera but also a Chameleon3 camera with the same IMX265 chip as used previously by Anthony Wesley and Phil Miles and reported in the BAA Journal in Oct 2017.

Camera and filter kindly paid for by a Ridley grant from the BAA and without which this would not have been possible.

More hopefully as we near inferior conjunction if the weather cooperates.

Invaluable help in this challenge from Anthony Wesley and Phil Miles in Australia, David Arditti closer to home, and Paul Abel whose suggestion got the ball rolling.

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