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Very cool!

nice photos!

ruclips.net/video/tzl6IGbVj0E/видео.html - A perspective from Burlington, VT

It was very interesting videos

Best overall Astro video explaining the difference between different telescopes types and real world performance

“I invite Covid survivors” I almost spit out my drink

@30:29 A question: would the baffles disturb the thermal airflows directing them into the light path?

Thoroughly enjoyed - thank you!

You should get your eyes checked by a doctor then. Good luck next time 👍 😊

I thought it was cool anyway, just knowing it is Jupiter. If I take my glasses off, everything looks like that... sort of, hahahahaha!

Yeah, learned recently that even though it might look clear, a sky might not be. Most my raw captures since I started look similar. PP and high framerate capture helps, but im really looking forward to that real clear sky.

Looks like the ghost of christmas past

Walmart scientific 🤣

High I'm new , how can I join you

Very interesting to see this, Bob Warren was my father. Thanks for sharing

That was so clear and helpful. I'm really looking forward to trying EAA from a light polluted sky Thank you, Peter

Wow! Very well executed indeed!

Jim Thompson or John Thompson?

!!!

Warning, sound kicks in as the flare kicks off around one minute. Very impressive Tony !

it is heaven I think it is heaven

love the music! was that from "here come the 70's?

This is a series of photos of many years of observation

Instead of the so called, variable nebula as they call it, what if NGC-2261 is the theoretical (white hole) or perhaps a dimensional portal through which bright light is backlighting interstellar gases and dust!? Could be the purpose for James Webb and the reason for disclosure recently.

Tycho (85 km Now go to google earth draw a line 85 km long then zoom out as far as it let's you go (63km) You can't see the line from 63km They say the moon is 384 400 km away How can we see it if it's that far?🧐

This is wonderful! Thank you

Hi Jim, This was a great video on small scopes.

A lot of really good topics this month! I especially liked Jim's presentation on sky glow, but they were all very good.

You should tell us about the pictures of people licence plates and yards found in the abandoned research center.

Very informative!! thanx!

Excellent presentation, I would have liked to hear more if more time was available. The Saturn example hit home for me. We lived in San Francisco when I was a little kid and one night a neighbor set up his telescope on the sidewalk and allowed anyone to look through the eyepiece. I remember being excited about having that opportunity, I had never looked through a telescope or binoculars before. I was about six years old at the time and when I did have a chance to look, I immediately recognized the object as the planet Saturn because of the obvious rings surrounding it. I also recognized the telescope as a refractor, I didn't know it at the time, but later in life when I became more interested in astronomy, I knew it wasn't anything but a refractor. I believe that event and also as a young city kid going on a camping trip to the Sierra Nevada mountains, whereupon I was marveled by my first view of the Milky Way and the massive number of visible stars that these two experiences were responsible for my later interest in astronomy.

Thanks for uploading. I had the opportunity to view a rocket launch in 2018. Memorable experience. I shared a pretty fun video of the journey to my page.

Wow this is really neat, would love to know how this was done. Great little clip, thumbs up from fellow creators!

🔭👨🏾‍🎓

Fascinating presentation for a person who has looked upward into Night Skies and wondered how complicated the process is to take the marvelous pictures of our Planets and distant Galaxies.

This is a great presentation! Lots of laughs as well

Incredible time lapse!! 😍👌🏼 Absolutely mesmerizing!! 🤩🤩

Those trees look like they could use some cleaner ground water. Is this park being used as runoff for industry nearby? I was going to comment on how hard it is to even make out Scorpius or Sagittarius, with all the other stars so beautiful and bright, but the more I look through those tree branches, the more concerned about their health I become. I'm about seven degrees west and one degree south of Ottawa, our forests here in Michigan have much the same composition as those of this park. Those look like Pinus strobus, eastern white pine, maybe 100 years old, probably suffered a lot growing through the last 50-100 years of industrialization in the Great Lakes region. I have to wonder how long they've been standing there and what ultimately did them in.

Could you share what was used to film, and perhaps edit, this? Camera, lens (or lenses), settings (shutter speed, aperture, ISO, etc.), programs, mount? Any of that sort of info in the description would be wonderful. Thank you, and thank you Eric LeMay and RASC of Ottawa, for sharing this beautiful view.

Very nice video. Thanks.

Nice to see you again, Simone!

A very interesting presentation! Thank you for sharing your insights, Dr. Alibay! I’m looking forward to watching the landing of Perseverance live in February.

For those wanting "Collimation: how good does it have to be" numbers for their own scope, like those at time 22:14, see "Modern Optical Engineering", second edition, by Warren J. Smith. p.454, formula (13.32)

Just a note: herschel wedges should not be used in telescopes with plastic interior parts. For example plastic baffle rings. The plastic parts can melt since the objective concentrates the sunlight. The risk is highest when the scope is pointed slightly away from the sun. This isnt a problem when using a filter in front of the objective.

Great video with a solid foundation of knowledge, all the best John👍

Some may prefer to see Jean-Sebastien's talk on intro to telescopes before watching this video: ruclips.net/video/GM0YijRlD4s/видео.html