Archimedes

[bkm2304]

Hi all,

I never tire of imaging this crater and its neighbours. One the most elegant of these is the ghost crater, Spurr, named for Josiah Spurr (1870-1950), an American geologist who pioneered the exploration and geological understanding of great swathes of Alaska as well as working all over the world. He wrote several books about the geology of the moon - ahead of his time in his contributions to these fields.

Rimae Fresnel are named for the French optics physicist Augustin-Jean Fresnel (1788-1827). Fresnel invented the catadioptric lens - the Fresnel lens - which is still used in lighthouses to this day.

When he wasn't making interesting lenses, Fresnel helped prove the wave theory of light, elucidated polarisation, and one of his devices, the Fresnel Rhomb, supplied inspiration for naming the punk band, Frenzal Rhomb, who have given us such memorable albums as "Smoko at the Pet Food Factory" and "Forever Malcolm Young". You just don't know where science will take you.....

Richard
ZWO 178mm camera, CelestronEdge HD 14". Approx. 2,000 frames stacked in Autostakkert!3 and sharpened in Registax.

[Leo.G]

Amazingly detailed images Richard!
I'm fast learning the difference between imaging the craters with an 8" telescope vs imaging with a 14", mine are nearly half as good.

[bkm2304]

Hi Leo,

I used a Celestron 9.25"for a lot of lunar images over the last year. But when I get the chance to use the 14 it really is different. That said, I have used the last year to refine and tweak my "work flow"so I know I am getting the best I can out of the imaging opportunities which are few and far between! Have a look at some of the stuff I did with the 9.25" - it really makes you focus on the best technique.

Maurolycus (https://www.iceinspace.com.au/forum/showthread.php?t=209357)

Archimedes (https://www.iceinspace.com.au/forum/showthread.php?t=207743)


Richard

[Leo.G]

I too have images I've done with my 8" I quite like. I have a 5 times Powermate now I'm keen to try it but I've been a combination of sick/lazy and other personal problems and haven't bothered for way too long. I haven't even taken a camera out for 6 months or more, not like me.


Yes, stunning images with the 9.25 too.
I couldn't take a telescope out at the moment if I wanted to, I'd lose it in my lawn which I started to get to then the mower started playing up. It's only just over 60 years old (Victa Mayfair with wind up starter handle), things just don't last like they used to. Dirt in the carburettor (standard wire mesh filter only) and broken starter spring because I stupidly spun the crank backwards trying to remove fronds from those stupid palm trees which were locking the crank. I can strip the carby and replace the spring but just haven't gotten to anything, crook for the past couple of weeks. The joys of getting older and lazier.

Then there's the big hole I dug to pour concrete in and mount my pier. That stopped when the hole kept filling with water and my son having major personal issues which have seriously impacted my life.
Were I smarter I'd have dug the hole ANYWHERE but where I used to set my mount on the levelled pavers (sloping yard)


Still, I'm loving your images!


If I eventually get my lawn done I've acquired an astro-trac, older model and looking forward to getting out with it and the Nikon D810 one day.