Observation by Martin Lewis: Mercury 22nd Sept 2017

Uploaded by

Test User

Observer

Martin Lewis

Observed

2017 Sep 22 - 09:15

Uploaded

2017 Sep 30 - 18:50

Objects

Mercury

Equipment

222mm Dobsonian
742nm IR filter
ASi174MM

Location

St Albans

Target name

Mercury

Title

Mercury 22nd Sept 2017

About this image

Finally, after 4 attempts, an image of Mercury in IR showing some surface detail. Problem in the past has always been finding the actual planet during the daytime with a Dobsonian scope. In this attempt I used my Argo Navis digital setting circles and set up vertically and S and then went to the alt and az as predicted by Sky Safari. There it was in a low power eyepiece shining at mag -1.1. Its brightness, even at f36, and in the IR allowed 2msec exposure and a massive number of frames to be recorded. The final image is made up of the best 0.5% of 165k frames stacked in Autostakkert.

Files associated with this observation

Mer2017-09-22_10-15_742nm_MLe v2.jpg (151.3 kB)

Like this image

Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of work by third parties is expressly forbidden without the consent of the copyright holder. By submitting images to this online gallery, you grant the BAA permission to reproduce them in any of our publications.

Registered charity no. 210769
Registered company no. 117572

For more information including contact details, click here.

Our Terms of Use are here.

Our Privacy Policy is here.