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Near Full Moon with High Mag Views, October 25, 2018

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#1 Tom Glenn

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Posted 29 October 2018 - 02:36 AM

These images were taken on October 25, the day after the Full Moon, but still with 99.4% illumination.  The full Moon is not normally thought of as a good time to observe, because of the lack of a prominent terminator to enhance shadows, however, with a targeted approach it can still yield very nice views.  There is almost always a tiny terminator on one limb or the other (in this case it was on the Eastern limb), and the regions near the poles never have high sun angles and so always look pretty nice.  In this case a Northern libration aided here as well.  This occasion was not one of "excellent" seeing conditions as I sometimes get, but it was good enough to provide some nice views.  I will first post the complete Moon, and then a few close ups, each in separate posts because of file sizes.  You will need to click for larger sizes.

 

Moon_102518_TG.jpg


Edited by Tom Glenn, 29 October 2018 - 02:41 AM.

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#2 Tom Glenn

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Posted 29 October 2018 - 02:37 AM

Looking East across Mare Crisium. Click for larger size. 

 

Mare_Crisium_102518_TG.jpg


Edited by Tom Glenn, 29 October 2018 - 02:41 AM.

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#3 Tom Glenn

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Posted 29 October 2018 - 02:38 AM

Craters Langrenus and Petavius.  Click for larger size. 

 

Langrenus_Petavius_102518_TG.jpg


Edited by Tom Glenn, 29 October 2018 - 02:42 AM.

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#4 Tom Glenn

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Posted 29 October 2018 - 02:38 AM

The lava-filled crater Endymion is front and center, with the sun setting over Mare Humboldtianum on the horizon.  Click for larger size. 

 

Endymion_102518_TG.jpg


Edited by Tom Glenn, 29 October 2018 - 02:44 AM.

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#5 Tom Glenn

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Posted 29 October 2018 - 02:39 AM

The large crater on the left, almost completely filled with shadow, is Gauss.  The prominent crater to the right of center, with the prominent central peak, is Hahn, and the crater Berosus is to its left and near the center of the image.  Click for larger size.  

 

Gauss_102518_TG.jpg


Edited by Tom Glenn, 29 October 2018 - 02:46 AM.

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#6 Tom Glenn

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Posted 29 October 2018 - 02:39 AM

The North Polar region, with prominent craters including Pythagoras and Anaxagoras.  Click for larger size (although this image is very reduced in size so less resolution).  

 

North_Pole_102518_TG.jpg


Edited by Tom Glenn, 29 October 2018 - 02:47 AM.

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#7 Tom Glenn

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Posted 29 October 2018 - 02:40 AM

This is a cropped region from the above image, allowing for a slightly higher resolution image, with Pythagoras shown here.  Click for larger size.  

 

Pythagoras_102518_TG.jpg


Edited by Tom Glenn, 29 October 2018 - 02:48 AM.

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#8 4BINNI

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Posted 29 October 2018 - 03:04 AM

I like, I  like. I'm glad I couldn't sleep. Seeing pictures like these, makes it worth it some times.



#9 John_Moore

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Posted 29 October 2018 - 06:23 AM

C'mon, Tom...you've been orbiting the Moon again in your spacecraft...super shots all.

 

John Moore



#10 Lindhard

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Posted 29 October 2018 - 12:05 PM

Very nice pictures.  What telescope did you use?   Give us some data, please



#11 astrochef

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Posted 29 October 2018 - 01:49 PM

Just stunning.  I was out observing the moon on the same night around 02:00 UT on the 25th. . I posted some of my a-focal cell phone pictures in Dave's thread from the night before. But your amazing images so beautifully capture what I saw visually but couldn't get my phone to pic up.  Most notably, that almost completely flooded crater on the floor of Humboltianum.  It drew my eye and prompted me to pull out the phone adapter in the first place.  The area around Gauss was very interesting as well.

Really fantastic images, as usual.



#12 Tom Glenn

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Posted 29 October 2018 - 02:14 PM

Thanks for the comments everyone.  Lars, the first image (of the entire lunar disk) was taken with a 4.5 inch Meade reflector, focal length 910mm, using an ASI183mm camera.  The camera sensor is 5496x3672 pixels, and at this focal length, the entire moon fits into the field of view so there is no need to mosaic.  The final image is composed of 500 stacked images from an original set of 3000, and then downsampled by about 3x to fit the posting guidelines.  The higher resolution shots are taken with the same camera, but using a C9.25 Edge HD telescope, focal length 2350mm.  The final images are also composed of stacks of 500-1000 frames from an original set of 3000 frames each, and then downsampled to varying degrees for posting.  In this case I used smaller defined ROIs rather than the full camera sensor, although I do often use the full sensor in combination with the C9.25 in order to create panels for a high-resolution mosaic, but not in this case.  


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#13 Astroman007

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Posted 29 October 2018 - 05:07 PM

Excellent photographs, Tom!

 

Such lunar beauty...simply breathtaking.



#14 Tom Glenn

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Posted 29 October 2018 - 05:25 PM

Thanks for the comment Martin! 



#15 Tyson M

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Posted 04 November 2018 - 10:29 PM

3D-like feel to the processsing. Good seeing and long avi's, and good processing it appears!

 

Well done. 



#16 Tom Glenn

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Posted 05 November 2018 - 12:02 AM

3D-like feel to the processsing. Good seeing and long avi's, and good processing it appears!

 

Well done. 

Thanks Tyson.  I typically like to orient my images along the limb such that the limb forms the horizon, and this gives the appearance of being in a spacecraft in orbit.  I think it contributes to the 3D feeling with the terrain sloping away and the shadows on the horizon.  



#17 Gary Riley

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Posted 12 November 2018 - 08:32 PM

Great job!
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