Observation by Chris Hooker: Mercury in IR on 26th April

Uploaded by

Chris Hooker

Observer

Chris Hooker

Observed

2020 Apr 26 - 07:30

Uploaded

2020 Apr 27 - 07:07

Objects

Mercury

Equipment

254 mm Newtonian
Tele Vue 5x Powermate
Baader IR-pass filter (685 nm)
ZWO ASI174MM mono camera

Exposure

0.4 ms

Location

Didcot, Oxfordshire

Target name

Mercury

Title

Mercury in IR on 26th April

About this image

Mercury imaged fairly early in the morning before the Sun's heat disturbed the local seeing too severely. There was no breeze, so a small region of interest could be selected, allowing nearly 500,000 frames to be captured in about 40 minutes of observation. Images processed by frame selection in software showed the main features, but the images shown above are the result of a mix of software and manual frame selection. The raw data was processed initially using PIPP then Autostakkert! to produce stacks with various percentages of frames. These were analysed using Registax, and the final frame selection was from the 12 videos that were consistently identified by Registax as giving the best-quality stacks. The result is noticeably better than the software-only version.

Files associated with this observation

Slide1.PNG (232.7 kB)

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Ray Emery, David Basey, Chris Dole, Bill Leatherbarrow, Steve Knight, Jeremy Shears, Nick Hewitt, Mr Michael Alan Frost, Martin Lewis, Philip Masding, Miguel Araújo, Graham Winstanley, Lyn Smith, Andy Wilson, Andrew Dumbleton

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