Observation by Peter Tickner: Venus night side 20th January

Uploaded by

Peter Tickner

Observer

Peter Tickner

Observed

2025 Jan 20 - 17:06

Uploaded

2025 Jan 21 - 02:58

Objects

Venus

Equipment

QHY5111585M
Thorlabs FELH 1000 nm long pass
Pixelteq 1010/38 nm band pass filter
0.5 reducer
14inch f/10 LX200ACF SCT
EQ8 mount

Exposure

50 ms

Location

Urban Berkshire

Target name

Venus night side

Title

Venus night side 20th January

About this image

This was the first time I had a chance to test out a new mono camera in action with the equipment correctly spaced. My previous attempt had been foiled by failing to give the reducer and sensor sufficient distance between them and since then the weather has not obliged. The camera has the mono sensor equivalent of the colour IMX585 unsed to good effect with the Uranus-C at the previous UK Venus night side opportunity in September 2023.

I wasn't expecting any clear spells on this evening but the cloud thinned enough to see Venus and I had my chance. Venus is still 45% lit so the necessary overexposure of the day side to get the night signal detected meant that it dominated most of the image. Despite that there are some faint surface features showing that can be matched to the heat map projection of Venus in WinJUPOS.

Peter

Files associated with this observation

2025-01-20 Venus NS best compared.png (148.4 kB)

Like this image

Dawson, Martin Lewis, David Brett, Andy Wilson, Callum Wingrove, Dominic Ford, Geof Lewis, Mike Foulkes

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