Lunar X

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Graeme
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Lunar X

Post by Graeme »

There's a clair-obscur effect that happens on an eight day old waxing gibbous Moon each month called the Lunar X. It's caused by the shadows and the illumination of a couple of overlapping crater rims. If you're not in the right place on the right day then you miss it. Tonight with the Moon sitting photogenically next to the Pleiades, the event happened at 23:30 UT and was visible from Western Europe. The clouds were intermittent prior to the time but I set up and pointed my telescope at the Moon in preparation. Then the clouds thickened. Then at just the right time the clouds cleared and I captured my first Lunar X.

2024-02-16_Lunar X_EL.jpg


Result!

Graeme
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HansV
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Re: Lunar X

Post by HansV »

I had to search for a few seconds, but then it jumped out at me. Well done!
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StuartR
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Re: Lunar X

Post by StuartR »

I just found it, that was hard to spot
StuartR


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HansV
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Re: Lunar X

Post by HansV »

It wasn't that hard...

LunarX.png
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StuartR
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Re: Lunar X

Post by StuartR »

:laugh:
StuartR


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BobH
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Re: Lunar X

Post by BobH »

Did I find it?
Spoiler
lunar x.jpg
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stuck
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Re: Lunar X

Post by stuck »

You did!

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ChrisGreaves
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Re: Lunar X

Post by ChrisGreaves »

HansV wrote:
17 Feb 2024, 12:01
It wasn't that hard...
:clapping: :clapping:
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Graeme
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Re: Lunar X

Post by Graeme »

Ok, for an extra point, who can see the Lunar V? 😀

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HansV
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Re: Lunar X

Post by HansV »

One of these? :scratch:

S2505.png
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stuck
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Re: Lunar X

Post by stuck »

I can see the left hand one that Hans has found.

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Graeme
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Re: Lunar X

Post by Graeme »

Correct. Another clair-obscur, visible at the same time as the X.

Screenshot 2024-02-17 214318.png
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