Venus (UV) 2013-09-11

[lepton3]

For a change I thought I'd post a straight mono UV image with no "prettying up".

Taken with a C11 + 2.5x Powermate + Photometric U filter + DMK21AU04.AS camera.

A stack of 60% of the frames of 15000 frame AVI, captured at 30 fps and 1/30 s exposure.

Drizzled 1.5 then scaled by another 1.3333.

The background sky is pretty bright, as this was taken at around 17:30 hrs. Seeing was around 5/10, and there was a 60-80kt jetstream.

-Ivan

[EricB]

Great stuff Ivan. My own venus taken yesterday was rather ordinary. Nothing compared to your not prettied up capture,:shrug:

Eric

[astronobob]

Dannngg, A stunning image Ivan, can see the detail in the thumbnail :eyepop: I assume elbeado differences the cloudtops, possibly from some major disturbances below ? ? Extraordinary ! ! !

[lepton3]

Thanks Eric. Actually, I've found the UV less affected by the wobbly local seeing than Visual or IR, although both are fuzzed out by the jetstream.



Thanks Bob. As far as I can glean from reading, the darker areas are at the same altitude as the bright areas, but have some higher concentration of UV absorbing chemicals present which is possibly mixed by convection from below. Fascinating stuff.

-Ivan

[hotspur]

fantastic image, really good detail,which is very hard to get on this planet,not often see an image of Venus as good as this-very well done!

[Quark]

Nice work Ivan, excellent cloud detail.

Cheers
Trevor

[Star Catcher]

An impressive capture. Well done!

tED

[John Hothersall]

Good levels of detail showing here, excellent result Ivan.

John.

[lepton3]

Thanks for the comment Ted.





Thanks Trevor and John, so far I have been pretty lucky with Venus cloud detail this season. Since the middle of August I've managed to get 11 images, all of which have some degree of cloud detail. Last year probably only about 1/3 had detail.

The seeing conditions (for UV) seem to be better this year.

-Ivan

[Paul Haese]

Very nice Ivan. I have been meaning to use this same filter for years and never got around to imaging Venus. You have captured some nice detail there.

[Shiraz]

very good image Ivan - don't think it loses much from not being "prettied" regards Ray

[venus]

good detail there nice image.