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Seeing Sinus Iridum On One Night Per Month

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#1 markseibold


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Posted 19 June 2013 - 10:15 PM

To all

I sketched the entire moon on Dec 26th 2009.
Mark Seibold DP Review Gallery- 19" X 25" Pastel of the Entire Luna...

I always enjoy seeing this feature of Sinus Iridum but can never predict or find a web site that will tell ahead of time what the feature will look like on any given night of the month. Does anyone know a live site that shows this? Will it look similar tonight as my pastel sketch shows here?

Also, I wanted to suggest an idea that many astro sketchers would all attempt the same feature on the moon to sketch one night per month, not as a competition, but of course it could also be that too. I think it would be great to compare what everyone around the world sees as the hours change the terminator lines subtleties.

And finally, can someone tell me of the old method to upload a inline text image has changed? I see many now posting only a hyperlink to images.

Thanks for any feedback and info.

Mark Seibold, Artist-Astronomer, Portland Oregon

#2 PeterDob


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Posted 20 June 2013 - 04:48 AM

Holy... :jawdrop:!!! This is no longer just a "sketch", Mark, this is a real work of art. I love it!!!


#3 David Gray

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Posted 20 June 2013 - 08:29 AM

Does anyone know a live site that shows this? Will it look similar tonight as my pastel sketch shows here?

Mark you might try this:


Regards, David.

#4 niteskystargazer



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Posted 20 June 2013 - 09:08 AM


Very good sketch of Sinus Iridum :).




#5 chrisrnuttall


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Posted 20 June 2013 - 02:42 PM

The first thing that struck me was the fine detailed look achieved by drawing at the large scale you do.
Then after looking longer I realise that there is extensive use of blues and warmer browns (unless it's my laptop screen!) across the disc, which I love!

#6 Tamas Bognar

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Posted 20 June 2013 - 02:56 PM


Very good sketch !!!

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