12P/Pons-Brooks From Ipswich May 10th, 2024

[thunderchildobs]

The comet from Ipswich on 10/05/2024 at 18:30. Stack of 30 x 15 seconds images using the Dwarf 2. No processing. The field of view is 3 degrees.

[astronobob (Bob)]

Another good result for the record.
I've been quite distant from Astro for a few yrs now, but went to the local meet recently and saw some these new little 'Smart Scopes about, interesting times indeed, that said I googled the Dwarf 2 and see it's a 100mm F/L, is that correct ?
Im now wonder why the field-of-view of your image appears quite small, unless Im missing something, have you cropped the resulting image after processing, or has the Dwarf 2 some Pre-Sets when capturing. like optical zoom or Region of Interest or scaling effect adjustments ?
Cheers..

[thunderchildobs]

Originally Posted by astronobob

Another good result for the record.
I've been quite distant from Astro for a few yrs now, but went to the local meet recently and saw some these new little 'Smart Scopes about, interesting times indeed, that said I googled the Dwarf 2 and see it's a 100mm F/L, is that correct ?
Im now wonder why the field-of-view of your image appears quite small, unless Im missing something, have you cropped the resulting image after processing, or has the Dwarf 2 some Pre-Sets when capturing. like optical zoom or Region of Interest or scaling effect adjustments ?
Cheers..

The Dwarf II does have a 100mm F/L.
The field of view of the image is about 3 x 2 degrees, which I think is quite reasonable.
The image is not cropped, but resized to 1000 x 563 from 3840 x 2160 pixels and compressed to get it down to the 200K image limit.

Can you tell me why you think the FoV is small and compared to what?

Brendan

[astronobob (Bob)]

Just seems like the comet is taking up a fair bit of space in the image,
Ive just done a Stellarium simulation of your field of view and its stating 2 degrees, Id assume in horizontal, but no drama if 3 deg...
I have simulated my 135mm field and stellarium stating 6.8 degrees..
That said, all i can guess is that your chip is really small with super tiny pixels unless im missing something,,,
With all due respect