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This was great info! Thank you.

Such a good explainer and writer!

"You come up with the key science drivers to build it and then you make sure your building a telescope to answer those questions. Figuring out what is absolutely essential to the science. And Webb has 4 science drivers." Brilliant

I just saw this video, thank you for posting. The human stories and many ways people see the skies are a major part of why I became interested in astronomy. I am new to northern Virginia and astronomy, so I hope to join the NVAC and see much, much more like this in the future!

Great presentation! A fascinating overview of some history of astronomy, timekeeping, the USNO, and our local astronomical institutions from a very practical and observation-focused perspective.

Redmond Enterprise Corporation has a solution as I'm thinking and previously drawn and others incorporated into renderings

does it have a clock for predicting eclipses

you mentioned that you remelted the mirror..was it still just as effective as before.

abraham lincoln was the only president to recieve a patent

Awesome presentation. Thanks!

The Mass-Radial Acceleration Discrepancy by measuring the speeds of galaxies in the Coma Cluster originated with Fritz Zwicky, not Vera Rubin, whom I consider a celebrated plagiarist, as using the more challenging methodology of the virial theorem, by relating the total average kinetic energy and the total average potential energy of the galaxies of the Coma Cluster. My father advanced that the virial for a pair of orbiting mass is zero and used the principle of superposition to craft the argument to a system of interacting mass points. Fritz Zwicky then used the position and velocity of measurements to determine the mass of the galaxy cluster. Vera Rubin advanced self promotion for decades after my father's passing by assigning herself forced credit for Dark Matter, while feigning humility as a woman in the sciences not seeking any special recognition. Rubin remains an unwanted barnacle who attached herself to my father's discovery and work without conscience and by deliberate design to assign credit for myself. Rubin, by her own admission, read my father's work regarding the speeds of galaxies, realized the importance, copied the methodology and advanced a campaign with obnoxious trumpeters to assign that forced credit to herself. This is the legacy of Vera Rubin, who left an indelible mark as plagiarist and is an embarrassment to honorable women pioneers in the sciences with proprietary body of work. It is of note that the Vera C. Rubin Observatory is a vacuous vessel in forced honor to the celebrated plagiarist Rubin by H.R. 3196. It is a building for the Simonyi Survey Telescope. I was denied the opportunity to speak to the Congressional Committee and voice my opposition to the naming but was assured that: "my letter had been read." Not one Committee member had the courtesy to respond. Reply

Where's the nova planetarium?

great talk very important well presented.. one bit of advice though .. when public speaking .. try your best to resist the use of ‘uhm’ in every sentence.. this can distract the listener .. 👍

Excellent information packed video. Thanks. How was the plot at 1:03:13 produced please?

Excellent presentations by Dr. Krach, the inimitable Bob Bunge , and Dan Ward on enhancing the visual observing experience and creating lasting memories through sketching at the eyepiece.

Awesome video!

You can't breathe man...

I'm surprised that your guide didn't make a reservation for the midday. You now have go to the cathedral shop and buy a ticket to get in to see it. It's very impressive as they show part of this video next to the clock, but even more interestingly, as all the various figures or automates come out there is a light projection on them with a voice-over that explains what their purpose is. As the crowd are ushered in about 20 minutes beforehand, there are regular announcements asking you to be quiet as this a place of worship. It is also well worth going to see the former clock in the museum mentioned in the video. The family of specialist clockmakers who succeeded Schwinglé were the Ungerer family, so perhaps some of you might recognise that name. Tomi Ungerer was a famous and important artist and among many other things, he was known for the books he wrote and illustrated for children. There is an art gallery run by a foundation dedicated to his work in Strasbourg that I would also recommend.

I want to have metered stones, help me to do everything, money, half yours, half me, help me.

Hello Mr Derby, I just enjoyed watching your presentation. I have also been using an eVscope 2 for awhile and love it. The automatic enhancing/stacking is a game changer for amateurs like me. With my other scopes, I just looked at planets, the moon, a few stars and that was it, which got boring after a while - I mean I just looked at them over and over again because I could not see much of anything else and the stars looked like stars just with different dimensions, colors and brightness. But now with the eVscope, the entire cosmos has opened up - nebulas I've never seen in all sorts of shapes and colors, plus far off galaxies, etc. It's just incredible. I'm embarrassed to say I have never been interested in expending the time and energy to learn astrophotography (I know my limits) and I really respect the individuals who take that route. But for me, if all I wanted were pretty pictures I can just google images from Hubble or James Webb. My goal with the eVscope, is not only see dramatic images (and they are dramatic), but to know where these objects are in space when I look up from my backyard. Which led to this: Whenever I went to different star parties, I would see astronomers using green laser pointers to outline different constellations for the public. And that was the missing link for me. So using the included adhesive tape, I purchased a light-weight laser pointer mount (#SFM1 Starfinder Mount with Base Rail - ScopeStuff website) and aligned it with my eVscope. Then I inserted the Z-Bolt® ASTRO-10-XT a 515nm astronomy green laser pointer -Low temp operate at 14°; constant on switch; 6 hour CR123A battery life. And now when my scope slews to a new area and before I start stacking I briefly turn on the laser and can see the area where the next object is located. At your star party you could show the public exactly where you are pointed. And for people who do not believe the image is real, you can turn on the laser and see the green light in the images on both your phone/IPad and through the eyepiece. I stress the low temp laser is better because I had other green lasers that would not work once the temp dropped below a certain level. For your consideration and thanks again Mr Derby.

Thanks for the discussion -and turning me onto setnc. I tried the current version and it supports newer Canon cameras, such as my R6. Nice!!

re 9:24 Is there any credibility to the idea that radio-isotope decay generates significant heat in such celestial bodies?

re 4:30 Mimas, that thinly disguised death star (Just sleeping til we trip the alarm, for them to know we're worth conquering.). ;-)

BTW, as much as I enjoyed Mr. Derby's focused presentation on the eVscope, where he hooked me was @38:01 when he alerted aspiring innovators about Wayne Viney's book: William James's Pluralism: An Antidote for Contemporary Extremism and Absolutism. I came to this video to hear opinions about one of the new breeds of smart scopes that allow us to navigate and view the cosmos and unexpectedly came away with a fresh and excitingly new (to me) way to navigate and view the world through innovation. What an amazing time to be alive when a random, completely anonymous contact with one person can have a profoundly positive influence on another. Bravo, Mr. Derby!

How viable is the eVscope for double star hunting and viewing as an alternative to "traditional" refractor/reflectors?

I.hve.a.meteroite.sir

I know this was a while back, but much of it is still relevant and Rod is ALWAYS entertaining!

Great stuff Cindy - and I now realize that I need to get a round brush! You've shown how uncomplicated sketching can be, and I hope this video inspires more people to give sketching a shot.

Hello sir. I'm yanyan from Phillipines I have an meteorite i want to know about this meteor that I have...

Presentation clarified many questions regarding these new automated scopes and their ease of use. In particular the SeeScope versus the equinox 2 and others. My specific interest is due to being physically handicapped and unable to properly use the equipment I have. Even GoTo Nexstar scopes are too challenging for me to set up especially once it gets dark and in a wheelchair. Cataracts don't help despite having surgery to correct them 2 years ago so it's gotten more difficult but my interest remains.

😮😮😮

Eu sou do brasil e procuro por meteorito na Italia eu encontrei uns parecidos comparando com outros eu estou no caminho certo moro na montanha de Biela obrigado otimo video !!

stoney meteorite having very very thin skin in Indian zone,,, ,

Hello Sir , I found an impact crater , something exploded into a rocky Granite ,Rhyolite outcrop. The impact blasted rock across a small creek damming it. The creek had changed course around it . I was looking for a lump of iron ? The only rocks their different were lumps of green magnetic Olivine. It’s sprinkled with specks of magnetic shiny iron. The lumps of Olivine have a melted re entry like surface ? . What I need is if some one could identify what type it might be , please ? Stu .

Thanks for the video. I am please to be part of the DEB team in Elko, Nevada. Clear skies

Gog's

Thanks for all your updates!

💦 Promo SM

An excellent presentation (from Sydney Australia)

It's a great talk, Terrence, helpful from someone obviously with a lot of experience and also nicely friendly and helpful.. Assembling everything must have been some trouble Tanks for all the pictures, too. Ed Takken

How to for Sale my meteorite?

great presentation! thank you!

Great job by Rod - He does a great job for Sky & Telescope and his book on Cats is great too!

how often does it go out of focus and collimation?

Very very thanks sir

ខ្ញុំមានមួយដំណើរយើងលក់ចែកលុយគ្នា

ruclips.net/user/shortszgrg2WyoqXI?feature=share

Hiya any ideas what this is it's got a separate detached metal core

Great, i liked the methodical way you broke it down. You are a good teacher.

This is interesting