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Yesterday the Moon was low in the sky (in Scorpius), but he seeing was good and allowed magnifications up to 257x. Gassendi was the most prominent crater on the terminator. Here's a painting of the scene.
The small Moon image (Stellarium) shows the location of Gassendi.
Thank you for watching.
Hello all! My father lives in Istanbul and he has the Gskyer AZ70700 Refractor Telescope. He has been really enjoying it as you can see from the photos I've uploaded in the Amazon review I've left for this item (Btw, I've just realized that this review is now the most helpful/liked review on this item which is cool):
My father is OBSESSED with looking at the moon's craters and he had this telescope for almost a year now and he probably never skipped a day at looking at the moon as long as the moon was visible. I've made the post below on this forum before asking for suggestions on what upgraded equipments I should buy for his telescope:
And after the suggestions and more research, I've bought these items:
1) Celestron 8-24mm Zoom Eyepiece (1.25")
2) Celestron 90° Star Diagonal (1.25")
3) SVBONY 1.25" Barlow Lens 2x Multi Coated T Adapter
4) Orion 05598 1.25-Inch 25 Percent Transmission Moon Filter (Black)
Now basically, my father's only wish in this life is to be able to zoom at the moon more and see the craters of the moon more clearly while being zoomed more. Right now, when he uses the 2x Adapter with 8mm eyepiece, things get blurry but he keeps trying to zoom more some nights and tells me that he is hoping one day it won't look as blurry on that amount of zoom I showed him a youtube video of the moon's craters zoomed in with a better telescope once and he was basically shocked and almost didn't believe me that that was possible with better telescopes though I am not sure how bigger/better/expensive those telescopes would be.
Now my father had an open heart surgery recently but he is OK now and I really want him to experience using a better telescope while he can and me being a good son, I want to buy him a better telescope now as I have a bit extra money to spend. I bought the telescope he is using now for 130$ (btw, this telescope had 5 star average reviews on Amazon at the time of my purchase which is why I bought it but I wish I knew about this forum before and asked you guys before buying that one although my father still loved the telescope a lot so I don't have many regrets about it). I was wondering if there are better budget telescopes that are around 180-300$ that can be at least a bit better than his current telescope when looking at the moon's craters while being zoomed more with better/clearer visuals. Btw, because of the light pollution in Istanbul Turkey, only the Moon, Saturn and some big stars are visible in the sky but my father only cares about the Moon craters anyway. It's also important for me that the telescope I'll buy will support 1.25" eyepiece that my father has.
After I've read many Top 10 articles online, the Celestron PowerSeeker 127EQ seems like a good budget option for me and I hear that because it has 1000 mm Focal Length, it's a good option for looking at the moon? I wouldn't know much about that thought which is why I wanted to get you guy's opinion on this. I've also seen that this telescope is being sold in Turkish websites (such as n11, hepsiburada, gittigidiyor etc.) which would mean I wouldn't pay anything for shipment to Istanbul and that he would have the option to return it in 14 days with a full refund if he doesn't like it. However, if you guys think that this telescope wouldn't really differ much from the telescope he has now when it comes to looking at moon's craters zoomed in, or that there are better telescopes than this 127EQ that is not too much more expensive than 127EQ but better at looking at moon's craters zoomed in and still beginner/mid-level friendly when it comes to looking at the moon, then please let me know! I'd really appreciate any input on this before I make my purchase. Thank you in advance!
I watch a lot of amateur astronomy videos on YT now that i've got into it as a hobby, we all know the Moon is an unlikely partner in space, why it's here (i think there's around five competing theories as to it's appearance in our Solar system), why it has such a low apparent density, why it's the perfect size to eclipse the Sun, transient Lunar phenomenon etc ...
One thing i find hard to explain is the hexagonal craters. A quick search brings up lots of academic resuolts, it's obviously an interesting problem to many serious researchers, how can a normal impact crater go from round to hexagonal ?
There's a reddit discussion :
Sorry, didn't realise links were being actively parsed! That discussion starts with (i didn't read it all) the sub-surface crack theory. I think that can be thrown out immediately since sub-surface cracks don't sporadically form heacgoanl nodes her, there and everywhere !
Three are lots of thjeories, many of them involving mineral deposits, such as Basalt, but deposits that form instantly upon an asteroid impact and organize themselves into multi-kilometre-wide hexagons? It's not The Devil's Causeway !
I know no-one here can know why some of them are hexagonal, none of us has Hubble at our fingetips, but i'd be interested to hear other theories, i've only done a quick bit of searching.
yesterday evening I got cold fingers at -3°C when sitting behind my 5" MAK doing a sketch of lunar crater Eratosthenes.
Telescope: Celestron Nexstar 127 SLT
Eyepiece: Skywatcher 5mm UWA 58°
Date & Time: Jan 6th, 2017 / 1740-1840 CET
Location: home terrace, Dusseldorf region, Germany
Technique: natural charcoal and chalk on black sketching paper
Image is mirror-reversed.
Eratosthenes is about 58km in diameter and is located at the western end of the Apennines. On the sketch you can see as well the western rim of the low crater Stadius (SE of Eratosthenes) and the craters Eratosthenes C and Wolff B.
Taken using Williams Optics FLT-110 refractor and Imaging Source DMK21AU04.AS Monochrome CCD. Video stacked in RegiStax6. Image shows the well known Tycho Crater which has a diameter of 102km and was named after the Danish Astronomer Tycho Brahe. The crater is surrounded by a distinctive ray system forming long spokes that reach as long as 1,500km.