Jump to content

  •  

CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.

Photo

Newton crater visual observation

  • Please log in to reply
9 replies to this topic

#1 CHnuschti

CHnuschti

    Viking 1

  • -----
  • topic starter
  • Posts: 696
  • Joined: 08 Sep 2020
  • Loc: Zurich / Switzerland

Posted 12 June 2024 - 04:20 PM

Newton crater visual observation

 

Looked at this one in maps for some time now. Still on my todo -to observe- list.

 

The crater is catalogized as "the deepest on near side", its D. If you look at it in LROC, to me it looks very likely those were (at least) 3 consecutive, bigger and excentric impacts (timely well apart I think), each deepening more into, probably the reason for the depth. The profiles look very cool, as there are 3 very flat floors of lava fill, apart each other in some 400/1000m elevation. The elevation difference to the highest rim on the east is almost whooping 8000 meters, in a distance of approx. 60km.

 

Maybe the central peak of the main name-giving crater (2 in the pic) is integrated into the crater rim of D, visually judged.

 

Observing it looks not so easy. Going through the librations in VMA, compared with the NASA preview, it looks best timepoint is definitely at waning around 50-70%, thats roughly around day 19-22. At least in the coming months, I'm not entirely sure if this preconditions change substantially in the coming years. In the other way round (terminator at crescent) it lies much more to the south, the illumination also is less favorable. Reference is Moretus just north, that one usually is well to identify.

 

I found a -rare as it seems- very good picture in astrobin.

This other picture, terminator included, catches it also well, it's around the said timepoint.

 

Remains a bit challenging I think, to visually distinguish it well, as far the NASA previews suggests. We'll see ... smile.png

 

regards

 

Clementine Image taken from Wiki

newton.labeled.1.jpg

 

 

Crop from NASA preview "best opportunity" (is 2024-9-23)

newton_lroc.jpg


Edited by CHnuschti, 12 June 2024 - 06:20 PM.

  • scottinash, jonbosley, Herchel and 7 others like this

#2 scottinash

scottinash

    Surveyor 1

  • *****
  • Posts: 1,866
  • Joined: 31 Jul 2004
  • Loc: Tennessee, USA

Posted 12 June 2024 - 05:26 PM

Very enjoyable report.....Thank you for sharing.  I have observed this very interesting complex several times and you are correct that it is difficult visually being very low and dark in the South.  Thank goodness for flyover views from LROC, etc. to provide us a greater view to help understand and collaborate the visual efforts.    


  • CHnuschti, 12BH7 and Physicsman like this

#3 The Ardent

The Ardent

    Fly Me to the Moon

  • *****
  • Posts: 6,435
  • Joined: 24 Oct 2008
  • Loc: Virginia

Posted 13 June 2024 - 12:22 AM

Visually I see double elongated ridges. Distinctly non circular unlike many surrounding craters , Moretus for example .
  • scottinash and 12BH7 like this

#4 scottinash

scottinash

    Surveyor 1

  • *****
  • Posts: 1,866
  • Joined: 31 Jul 2004
  • Loc: Tennessee, USA

Posted 13 June 2024 - 06:39 AM

Frank5817 shared an excellent sketch of this region several years ago that I have bookmarked in my observing notes.  It is a great representation of what most of my views via the eyepiece have looked like (dark).

https://www.cloudyni...mberger-newton/

 

Also, Physicsman recently posted an image of this area which shows what would possibly be the best view of Newton from earth.  I have yet to personally observe it so clearly visually though. As with a lot of obscure features/areas, proper timing is essential apparently. 

 

https://www.cloudyni...strip-ri-crop2/

 

I'm anxious to hear what success you have with visual observations.  I like The Ardent's description which seems to line-up with Physicsman's image.  You've definitely motivated me to place a more focused approach on getting a better look...thanks!


Edited by scottinash, 13 June 2024 - 06:41 AM.

  • Lindhard, CHnuschti, 12BH7 and 1 other like this

#5 Physicsman

Physicsman

    Viking 1

  • *****
  • Posts: 853
  • Joined: 15 Feb 2023
  • Loc: Cumbria, UK

Posted 13 June 2024 - 10:50 AM

As suggested by Scott, here are a couple of views imaged in October and November 2022. The libration was around 7 degrees from a near southerly direction, so Newton was more prominent than normal.

 

1 69 Clavius Moretus November 13 2022 02.28 UT F800 A174B Gcrop Gcur2 from stitch 10 crop RS
 
2 69 Clavius Moretus November 13 2022 02.28 UT F800 A174B Gcrop Gcur2 from stitch 10 crop RS Paint
 
 
3 U Clavius S 1 To 10 Shp St G = 1 DN = N stitch 10 Gcur stitch 3 strip RI crop2 Cr RS
 
4 U Clavius S 1 To 10 Shp St G = 1 DN = N stitch 10 Gcur stitch 3 strip RI crop2 Cr RS Paint
 
Views are looking south, of course!

Edited by Physicsman, 13 June 2024 - 10:51 AM.

  • scottinash, jonbosley and RobDob like this

#6 CHnuschti

CHnuschti

    Viking 1

  • -----
  • topic starter
  • Posts: 696
  • Joined: 08 Sep 2020
  • Loc: Zurich / Switzerland

Posted 13 June 2024 - 07:18 PM


Also, Physicsman recently posted an image of this area which shows what would possibly be the best view of Newton from earth.  I have yet to personally observe it so clearly visually though. As with a lot of obscure features/areas, proper timing is essential apparently. 

 

https://www.cloudyni...strip-ri-crop2/

 

 

 

It's too near to the terminator I would say. The following 1-2-3 days it gets increasingly better detectable, I would expect. The  same picture as the last one in #5 I guess. But the  eastern, high ridge overlooking everything is brought out very well here.

 

regards
 


Edited by CHnuschti, 13 June 2024 - 11:22 PM.


#7 The Ardent

The Ardent

    Fly Me to the Moon

  • *****
  • Posts: 6,435
  • Joined: 24 Oct 2008
  • Loc: Virginia

Posted 13 June 2024 - 08:56 PM

I am usually looking it around full moon.
I always look for the three peaks south of Newton. The closest one is usually visible most of the time.

#8 CHnuschti

CHnuschti

    Viking 1

  • -----
  • topic starter
  • Posts: 696
  • Joined: 08 Sep 2020
  • Loc: Zurich / Switzerland

Posted 17 June 2024 - 07:08 PM

Did look tonight at it with 110/660 at 145x, fair conditions. Laid quite deep and unfavorable. A bit much in shadow, but later around 22UT some more inner light, where you could figure out something. The strange C crater north, uplifted by several 1000m above the deepest D, was well to identify, half in (inner) shadow. But also the G was just so recognizable through its darker floor pointed out a bit. Its A south of it also was detectable, rim, shadowed inside. I counterchecked with LTVT, it's "correct".

 

regards

 

newton.83perc.cresc.labeled.jpg


Edited by CHnuschti, 17 June 2024 - 07:14 PM.


#9 The Ardent

The Ardent

    Fly Me to the Moon

  • *****
  • Posts: 6,435
  • Joined: 24 Oct 2008
  • Loc: Virginia

Posted 18 June 2024 - 12:21 AM

I always see that peak under the green A line above.
  • CHnuschti likes this

#10 CHnuschti

CHnuschti

    Viking 1

  • -----
  • topic starter
  • Posts: 696
  • Joined: 08 Sep 2020
  • Loc: Zurich / Switzerland

Posted 18 June 2024 - 06:37 PM

I can confirm that. Looking at it tonight, everything was in light, overexposed to pick out inner details, just the C was distinct. But the peak at the edge (I remember 3 slightly offset in a row ) now I remembered, were thematized here once.
Well, not always at the edge, it's peak 5 there.

 

regards




CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.


Recent Topics






Cloudy Nights LLC
Cloudy Nights Sponsor: Astronomics