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First try imaging Venus IR+UV Celestron C8

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#1 RNSpeed

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Posted 25 July 2021 - 09:17 PM

Hello everyone, Today I was able to finally image Venus from my backyard. I used the Baader U-Venus and Astronomik Proplanet 742 filters

 

Im so happy I was able to get some details
 

Telescope: Celestron C8 SCT

Camera: ZWO ASI174MM

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#2 Foc

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Posted 25 July 2021 - 09:51 PM

Interesting Venus cloud details in this image.  Are you saying you used both filters in the optical train such as one in the barlow and one on the camera?


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#3 RNSpeed

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Posted 25 July 2021 - 10:05 PM

Interesting Venus cloud details in this image.  Are you saying you used both filters in the optical train such as one in the barlow and one on the camera?

Its a composition of two videos, one using a Baader U-Venus Filter and the other using the Astronomik Proplanet 742.

Image train was Camera -> Filter -> 2x Barlow -> SCT



#4 Foc

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Posted 25 July 2021 - 10:27 PM

That makes more sense.smile.gif  

Was the detail shown in the composite in faintly shown in the same location when you looked at each video on its own or are the blue-grey and red in your composite representing the two different filtered signals?


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#5 Kokatha man

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Posted 25 July 2021 - 11:08 PM

...it's a "normal" false colour image of Venus where the (incredibly slow) rotational rate with the overlaying of the 2 different filter outcomes produce the colouration Ross.


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#6 RNSpeed

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Posted 26 July 2021 - 07:45 AM

Thanks all for your comments. Details on my case were visible only with UV.   But image were dim and difficult to focus.  I compensated by increasing gain and exposure time 

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#7 RNSpeed

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Posted 26 July 2021 - 07:47 AM

With the other filter (IR) image wasn't that really affected by atmospheric turbulence

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Edited by RNSpeed, 26 July 2021 - 07:47 AM.


#8 RNSpeed

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Posted 27 July 2021 - 11:28 AM

I think now I'll need to find out how to get the right color for the UV+IR composition confused1.gif



#9 Quaternion

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Posted 27 July 2021 - 12:40 PM

At what elevation did you get this data?  Did you image after sunset or during the day time?  I would like to try this, and after my failure on Mercury at low elevation, I'm not sure how to proceed. Thanks.

 

John Boudreau is the man you want to talk to about Venus !


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#10 RNSpeed

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Posted 02 August 2021 - 09:35 AM

At what elevation did you get this data?  Did you image after sunset or during the day time?  I would like to try this, and after my failure on Mercury at low elevation, I'm not sure how to proceed. Thanks.

 

John Boudreau is the man you want to talk to about Venus !

I got the data just after sunset, from my location (18.05 deg N) Venus is around 30deg above the horizon to the west around 7:00Pm


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#11 Quaternion

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Posted 03 August 2021 - 05:28 AM

Thanks, RNSpeed.


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