Venus last night

[Graham Darke]

Imaged at just under 3 metres focal length through my TEC140 refractor with 3x Barlow and ASI662 camera. The best 15% of around 15,000 frames captured with exposures of around 0.8 milliseconds. Not sure if this camera is sensitive to UV or not so don’t know if it is worth investing in a UV filter? 

[orion25]

Looks great. It would be interesting to try a UV filter and compare the images. Why not?

Reggie

Edited April 19, 2023 by orion25

[Kon]

Nice image. Your image has some clouds if you stretch it a bit harder, ignoring the edge rind. Your camera should be sensitive in UV according to this but I would recommend to remove the AR window as it cuts 15% of the UV signal (be careful how you store it afterwards to avoid dust in the sensor).

[Glasspusher]

Hi Graham, nice image. Bear in mind that most glass lenses absorb in the UV, so not ideal for imaging Venus in the UV.

John

[Graham Darke]

Good point, John, a job for my 12” Newt perhaps…

[Pete Presland]

Lovely looking phase showing there