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Comet Lovejoy, M45, M51, M65, M66, M101, Jupiter, with PD video camera

24-25/1/2015

Roger Samworth

 

Brilliant night last night! So out with the PD video camera again.

I piggy-backed my tiny 3" reflector onto the LX90 to try to make use of the 300mm focal length and f/5 to see if I could get a sight of Lovejoy's tail.

The first image is the "normal" comet image and the second processed to try to bring out the tail, if it is there. Not much evidence, I am afraid! I reckon if you squint at it you can just about make out something at about 10 o'clock.

I then tried the Pleiades with the same set-up. Can definitely see the nebulosity around the main stars.

Then onto the deep-sky stuff with the main 8" scope:

M51 in Canes Venatici

M65 & M66 in Leo

M101 in Ursa Major.

All these images have a total exposure of 2-3 minutes after you have accounted for the camera's internal stacking and the subsequent stacking in Registax.

I decided I ought to try some planetary imaging with the PD. 

So I photographed Jupiter (plus Io). This is a stack of a 2000 frame AVI at 1/50th sec per frame. I was a bit disappointed in this one, but it isn't too bad. I think I need to fiddle with the camera settings in movie mode. It is the first time I have used the camera this way.

Roger

 

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