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Polaris at the end of the night

beginner imaging refractor
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#1 Cyborg84

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Posted 01 July 2020 - 08:09 PM

My setup took this picture at the end of a night of an automated sequence.

 

I'm pretty sure that my mount automatically parked before the end of the sequence and this is Polaris shining brightly just before dawn.

 

I cropped this image from the bottom center of the shot taken with (new) ASI183MM through my WO GT71.

 

What is going on with the strange shape of the star? 

Polaris_Light_L3_120_secs.png


Edited by Cyborg84, 01 July 2020 - 08:30 PM.

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#2 jamesNewmanF125

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Posted 01 July 2020 - 08:33 PM

Hard to say (possible filter flip needed), but you definitely have some tilt given the way all your stars are diffused.



#3 Cyborg84

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Posted 02 July 2020 - 08:48 AM

Thanks for mentioning the alignment - I think I got that straightened out now. grin.gif

 

I also figured out that the image I posted was just above ( just outside the field of view of the camera, but maybe still in the field of the scope ) a tree that blocked light from below.  Next time out I will experiment to see if I get the same effect when I partially block the light from below.

 

EDIT: and the sensor was rotated so the asymmetric starburst was closest to the bottom edge.


Edited by Cyborg84, 02 July 2020 - 05:03 PM.

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