A comparison of Northern Hemisphere and Southern Hemisphere views of the Moon captured 18 hours apart (Niall MacNeill)

A comparison of Northern Hemisphere and Southern Hemisphere views of the Moon captured 18 hours apart

Acquisition type: Lucky imaging

I recently posted an image of the Moon taken from my place in the Central West of NSW, Australia. Coincidentally my friend John van Nerum had captured an image from the Netherlands just 18 hours beforehand. We decided that a side by side comparison would be most interesting.

I matched the sizes, but the orientations are as John and I saw the Moon from our respective locations

John's image (left) was taken on 21st February 18:07 Universal Time (UT) and mine (right) was taken ~ 18 hours later on 22nd February 12:18 UT.

Some points to note:

- we really do live on a sphere :-D

- John's image is black and white, mine is colour. This is a good demonstration of the colours visible on the Moon.

- John's image shows the moon 68.6% illuminated, 18 hours later the Moon was 75.7% illuminated when I imaged it.

- John's image scale was 0.48 arc secs per pixel, where mine was 0.2 arc secs per pixel. My image was spread over more pixels so was somewhat better sampled.

The mouse over shows Revision B where both images have been orientated to the same direction (North up). John's image is however now at left to facilitate stereoscopic, parallel eyes if you can do that. This is possible because the Moon's rotation and the changing shape of the shadows simulates the view you would get from your left and right eyes giving binocular 3D vision.

Revision C allows you to do the same thing with the more localised southern polar region featuring crater Tycho.

Final
Original
B
C

B

Description: Images reoriented to the same direction.....North up. John's image now at right to facilitate stereoscopic parallel eye viewing to produce a 3D image.

Uploaded: ...

C

Description: Detail of the southern part of the Moon, featuring crater Tyco.....North up. John's image now at right to facilitate stereoscopic parallel eye viewing to produce a 3D image.

Uploaded: ...

	Distinct awarded users	Total awarded images
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	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
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