British Astronomical Association
Supporting amateur astronomers since 1890

Secondary menu

Main menu

BAA Observing Sections Mercury and Venus
Image search

Mercury 22nd Sept 2017

Image
About this observation
Observer
Martin Lewis
Time of observation
22/09/2017 - 10:15
Object
Mercury
Observing location
St Albans
Equipment
222mm Dobsonian
742nm IR filter
ASi174MM
Tags
Like This Image
Share

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.

Comments

Fossil Light's picture

At Mercury imaging expert Chris Hooker's suggestion, I have added a second reference image which is the Winjupos rendition of the Messenger data which has been contrast/brightness altered and then blurred. This second image should better represent how Mercury would look in my telescope.

Best regards

Martin

Chris Hooker's picture

That's an excellent result, Martin. Getting these images is not easy, so well done for persevering and congratulations on your success.

Chris

Copyright of all images and other observations submitted to the BAA remains with the owner of the work. Reproduction of the work by third-parties is expressly forbidden without the consent of the copyright holder. For more information, please contact the webmaster.