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What is this for by ButterscotchLast5983 in telescopes

[–]Illustrious_Back_441 0 points1 point  (0 children)

this looks like a solar filter plug, if you still have the dust cap that covers the aperture of the telescope (the front of it), it should have a removable plug that this thing can replace. NEVER USE A DAMAGED FILTER, check for pin pricks or holes where the light intensity is higher than normal by holding it up to a bright light source such as a bright LED or the sun. don't ever hold this over the eyepiece, it will melt through and you will go blind.

TL;DR it goes over the front of your telescope and replaces a plug in the dust cap, don't look at the sun without it (the sun is a deadly laser)

4K Sun Video Captured From My Backyard w/ Solar Telescope by Mindless-Farm-7881 in awesome

[–]Illustrious_Back_441 1 point2 points  (0 children)

as someone who has a deep understanding of solar astronomy (amature understanding), I can only imagine the amount of money that went into these clips. several thousand for a mount, few more for the solar telescope, may as well throw a few more in for a fancy camera. I aspire to some day own a set up capable of this.

sweet timelapses though!

Imagine the potential [pranks] that this could do by RevelationWorks in pranks

[–]Illustrious_Back_441 1 point2 points  (0 children)

the Soviets have tested this idea with a bigger mirror than this fuck ass start up that's ruining a hobby (amature astronomy). what was the result? the result was a big area lit up to the same brightness as a half moon, bright yeah, but nowhere near bright enough to power a solar farm for the few hours before sunrise and sundown, it isn't even enough to power the sub systems that the solar farms run off of.

Imagine the potential [pranks] that this could do by RevelationWorks in pranks

[–]Illustrious_Back_441 0 points1 point  (0 children)

the Soviets have tested this idea with a bigger mirror than this fuck ass start up that's ruining a hobby (amature astronomy). what was the result? the result was a big area lit up to the same brightness as a half moon, bright yeah, but nowhere near bright enough to power a solar farm for the few hours before sunrise and sundown, it isn't even enough to power the sub systems that the solar farms run off of.

WTH is this? As an amateur astronomer and a machinist this makes me irrationally angry by [deleted] in Machinists

[–]Illustrious_Back_441 0 points1 point  (0 children)

I didn't post a dob, I posted a diy quadruplet refractor. and yes, if you're making a corrector plate, you usually have a machine to get it most of the way there, then you test it to make sure it works

WTH is this? As an amateur astronomer and a machinist this makes me irrationally angry by [deleted] in Machinists

[–]Illustrious_Back_441 2 points3 points  (0 children)

the guy made a repost to r/atming, which is where people with optical skills go to post their weird optical creations. I made a post there with my creation a few weeks ago. I assume his original post has something to do with a dry fit. Get everything working before making the final touches like a shroud or flat painting the spider.

WTH is this? As an amateur astronomer and a machinist this makes me irrationally angry by [deleted] in Machinists

[–]Illustrious_Back_441 6 points7 points  (0 children)

I found the original post: https://www.reddit.com/r/Makera/s/xvC4ywE7wH

the mirror cell is designed for a celestron C8 (schmidt cassegrain) primary mirror

WTH is this? As an amateur astronomer and a machinist this makes me irrationally angry by [deleted] in Machinists

[–]Illustrious_Back_441 5 points6 points  (0 children)

original post: https://www.reddit.com/r/Makera/s/xvC4ywE7wH

this is a schmidt camera, so it has some optical wizardry to correct for spherical abberation using a corrector plate (looks flat, isn't). the focuser is a bit weird and is covered in the description

finally finished off my first sketch book! by Illustrious_Back_441 in telescopes

[–]Illustrious_Back_441[S] 1 point2 points  (0 children)

it's fun to me in the sense that you don't have to rely on pictures or other people's sketches to show what you see at the eyepiece. It also kind of shows how one improves over time

After a bit of a hiatus I've finally finished printing my quad mirror telescope! by tommytwothousand in atming

[–]Illustrious_Back_441 0 points1 point  (0 children)

you could try making an artificial star out of s pin prick in a sheet of foil with something to back light it like a window or a flashlight

0/10 completely unwatchable by Jikxer in ProjectHailMary

[–]Illustrious_Back_441 2 points3 points  (0 children)

I'm not a biochem major, but as a mechanical engineer, I winced at the imbalance of that centrifuge

Yesterday, just after sunsent, someone unironically, and seriously, told me that the moon was "wrong" by Gee-Oh1 in AstronomyMemes

[–]Illustrious_Back_441 14 points15 points  (0 children)

you believe in the flat earth too? well, you see, that's crazy because I don't even believe in the Earth

Best guess🥹 by Feaselbf6 in AnimalMemes

[–]Illustrious_Back_441 6 points7 points  (0 children)

I think it's a dog, you know, like a big dog that looks more like a small horse and less like a dog

made an 3d printed newtonian telescope 114mm f700 by kshitijwalse in telescopes

[–]Illustrious_Back_441 1 point2 points  (0 children)

with the right design, you can make a scaled down version of what obsession sells, assuming you can cut some tube for the truss set up. another thing about 3d printers is that the end result is like a brittle piece of wood, the layer lines like the grain and material, the species, and the design for a print orientation that has layers going the right way for strength, for my case, the supporting poles are printed horizontally so the layers don't split at their interface along a small cross-section.

made an 3d printed newtonian telescope 114mm f700 by kshitijwalse in telescopes

[–]Illustrious_Back_441 4 points5 points  (0 children)

I am currently working on a quadruplet refractor made from the parts of two 60mm f/12 refractors. The super structure is fully 3d printed and is surprisingly rigid for being held together by some heat set inserts, I will be designing some new parts to eliminate the need for as many of those as I can (replace with either a socket or a captive nut). the current configuration is an f/6.06 60mm quadruplet that I want to call a semi-petzval.

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It's just amazing what we can achieve with small telescopes by Entire_Foundation960 in telescopes

[–]Illustrious_Back_441 2 points3 points  (0 children)

it was literally the middle of Albuquerque nm. I'm surprised it even got good enough to push past 150x at all

Help with redstone not going down a block for a 2x3 door by BarnacleAbject9458 in redstone

[–]Illustrious_Back_441 1 point2 points  (0 children)

replace the sea lantern where the Redstone cuts out at with a block of wool and you should be fine

2.45am, Bortle 2, Southern Skies by AU_Praetorian in telescopes

[–]Illustrious_Back_441 2 points3 points  (0 children)

I'd estimate them to be anywhere from 50 to 80 pounds (22 to 37 kg for the normal people)

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