Vallis Alps sun rise
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By acr_astro
Dear all,
yesterday afternoon, the forecasts for the evening were good so I set up the 10" truss-tube Dobsonian on the terrace for cooling down. Actually in the evening the sky wasn't as clear as expected but the cirrostratus luckily did not harm too much. It could have been brighter but anyway ...
So I tried my new 2x focal extender with the 10 inch scope for the first time and magnified up to 370x. Seeing was okay and I really enjoyed travelling along the terminator from Plato via Copernicus down to Clavius. For the 10"er the focal extender is really an enhancement when viewing the moon and conditions are okay: I saw much more detail in Clavius as I have ever observed before.
This would have been a good sketching target but finally I decided to go for a sketch of the magificient Copernicus (named after the famous Polish astronomer by Giovanni Riccioli mid of the 17th century):
The crater floor was still completely in darkness, one could only see the bright, round rim of this 93km wide crater. The terraced slopes were just partly in the lunar sunrise yet. Obviously the central peaks are as expected lower than the rim - they were still hidden in the darkness. The two craters north of it are Gay-Lussac A and Gay-Lussac on the way to the Montes Carpates with their eastern parts already visible.
Here's the sketch:
Telescope: Martini 10" f/5 truss-tube Dobsonian
Eyepiece: Explore Scientific 6.7mm/82° with Explore Scientific 2x focal extender
Date & Time: Jan 22nd, 2021 / 1900-2000 CET
Location: home terrace, Dusseldorf region, Germany
Technique: Koh-i-Noor charcoal, whitecoal and chalk blocks and pens on black sketching paper
Size: 11"x11"
Clear skies!
Achim
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By Kimboman
Hi I went out this early evening to see if Saturn and Jupiter were observable but the clouds dominated this area.
The Moon however was in a very clear area so I used my MeadeETX90 with a bino viewer with two 25mm eyepieces and spent some time viewing it.
The views were really good as the Moon was in the first quarter which is when I feel is one of the best times to view it as it is not to bright.
The shadows that were being cast were amazing but once again the clouds rolled in so until the next time??
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By theonlypromg
The Great Conjunction
who else waiting for the Great Conjunction between Saturn and Jupiter in 21 December 2020
Click here to watch
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By melsmore
First the disclaimer. This is my first attempt to sketch Mars, or indeed any planet. Also, it started to rain and I had to abandon it with some urgency (hence no orientation marker). I used a HB pencil and a blending stump. But I think I can see a couple of features that match Ade Ashford's app.
The Wratten 21 filter improved the view enormously (although you may find that hard to believe looking at the picture) helping show the surface detail and improving the seeing. I tried it the day before in my 80mm refractor, but that just made the image too dim, but on the 115mm it was very good, so I recommend it to anyone with 115mm or larger.
I tried sketching the moon (Plato) several years ago, but SWMBO pronounced it (I'll paraphrase her here) more Feline Anatomical than Selenographical. While this one may look more like a two year's old attempt at drawing a rabbit, at least no one can confuse it with the rear end of the cat. So regardless of the criticism I receive here, I'll give it another go tonight (weather permitting). 🧐
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By Steenamaroo
Hi all,
I've been dabbling for about a year and am having a lot of fun.
Nothing too serious and I don't have mega expectations but I'm starting to wonder if my images could be sharper and there's something I'm missing.
I'm attaching a picture which is the best 10% of a 3 minute video with 500d 'bolted' straight to the 200p f5 scope. No filters...no barlows...just camera straight on.
It's sharpened and saturated after the fact so in every way this is the sharpest I can get it.
I've always had the same issue whether it's with a single shot, stacks of shots, or stacked video.
Views through the eyepieces (circle-T 12.5/25) are mega sharp!
I'm happy that collimation is very good and it was a remarkably clear night tonight.
All in all I'd be pretty happy with this image (maybe over exposed a bit...) if the craters with shadows didn't make me want to rub my eyes.
Thanks in advance for any thoughts or advice!
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