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Astrophotography

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- Mon, 23 Mar 2020 19:03:30 EST zhzC7ZYp No.58017
File: 1585004610644.png -(2842084B / 2.71MB, 1366x1154) Thumbnail displayed, click image for full size. Astrophotography
How many of you do astrophotography? Anyone down to share photos and discuss setups? Any outsiders to the hobby interested and have questions? Git on in here.

Pic related, my most recent, and probably best shot of a galaxy- NGC2903. Taken on a Canon T6i through a 6" f/5 Newt on a Meade LX85 mount @ ISO 1600, 61x32sec exposures + 142 bias frames, 23 dark frames, 91 flat frames. Processed in DeepSkyStacker, PixInsight, and RawTherapee.
43 posts and 27 images omitted. Click View Thread to read.
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OP - Tue, 27 Apr 2021 02:38:37 EST zWx4tH5L No.58184 Reply
1619505517024.jpg -(5757825B / 5.49MB, 2049x2048) Thumbnail displayed, click image for full size.
>>58017
Also, wow, I am looking back at my original post and feeling great... the fact that that was the best shot I had taken of a galaxy only about a year ago. :')

Here is M101, "The Pinwheel Galaxy" from the night of the 16th.>>58017
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OP - Tue, 27 Apr 2021 02:53:29 EST zWx4tH5L No.58185 Reply
1619506409827.jpg -(10666269B / 10.17MB, 2875x3008) Thumbnail displayed, click image for full size.
Not sure if anyone will share my excitement but I've made some major improvements just to the workflow, software, and mechanical tuning of my set up that should enable me to get a ton of spectacular shots in June (I'll be vacationing in north-central PA where the light pollution is nearly non-existent). Plan to take it fairly easy up then for as long as pollen/tree-jizz season hangs around... Seeing all of that crap coat my instruments in real time irks the hell out of me, and I'm a little worn out on galaxies which is practically all I get this time of year anyhow. Expect some really good shit around then though!

Here's a pretty wide field of the Virgo galaxy cluster from the night of 4/19 to 4/20 lol. The astrometric platesolving and annotations were added using a program called PixInsight.
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Maximilian Wolf - Fri, 11 Jun 2021 23:40:38 EST HCN900Ws No.58201 Reply
Wow, just wow.

I love your Saturn, Jupiter, and M45.

Do you attend any clubs/go to any star parties?
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Type 2 & 3 Civilizations

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- Tue, 12 Nov 2019 21:04:20 EST gskNGeFw No.57852
File: 1573610660903.jpg -(70405B / 68.75KB, 728x410) Thumbnail displayed, click image for full size. Type 2 & 3 Civilizations
I've been pondering on embroaching my skilltelect at writing passable sci-fiction into a book that dwelges the line between a, let's say type 2 civilization and a type 3 civilization. I was thinking having maybe a the type 2'ers at much better than the civ 3 people at like a noteworthy skill or aspect, but the level 3'ers of course being so, so much more far advanced, what with having the entire planet system harvested, when so surely the 2'ers only control one star.
Please strike me up on this what could be an ever fading dividing line there.
15 posts and 4 images omitted. Click View Thread to read.

Possible Marker of Life Spotted on Venus

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- Mon, 14 Sep 2020 19:08:53 EST 0/6tNztx No.58133
File: 1600124933019.jpg -(9879B / 9.65KB, 219x238) Thumbnail displayed, click image for full size. Possible Marker of Life Spotted on Venus
>An international team of astronomers today announced the discovery of a rare molecule — phosphine — in the clouds of Venus. On Earth, this gas is only made industrially or by microbes that thrive in oxygen-free environments. Astronomers have speculated for decades that high clouds on Venus could offer a home for microbes — floating free of the scorching surface but needing to tolerate very high acidity. The detection of phosphine could point to such extra-terrestrial “aerial” life

https://www.eso.org/public/news/eso2015/
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Arthur Eddington - Sat, 21 Nov 2020 00:18:19 EST ErtKOth2 No.58144 Reply
Can anyone do a follow up? It seems that it's being contested but the ultimate falsification would be direct measurement.
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Caroline Herschel - Sat, 27 Feb 2021 02:10:00 EST L+XYIf0L No.58174 Reply
>>58170
>>58144
It turned out not to be phosphine, but it took some further digging through the data to figure it out. The initial paper didn't jump the gun, but most of the media coverage did.
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Karl von Weizsacker - Fri, 21 May 2021 15:14:04 EST M5OG2t+g No.58193 Reply
>>58174
>Science journalism
not even once.
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Mining the Moon

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- Sun, 02 Aug 2020 19:05:45 EST jKnBs2Bq No.58125
File: 1596409545313.jpg -(37618B / 36.74KB, 474x348) Thumbnail displayed, click image for full size. Mining the Moon
For some reason their are multiple countries highly interested in mining the moon right now and for some reason they are saying we can mine tons of stuff that they never said was on their. For some reason their is a chinese bot on the dark side of the moon and said they found a "weird substance" lol.

26.40 Hz Is this a schumann resonance?

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- Wed, 29 Jul 2020 06:36:01 EST LBY010MF No.58122
File: 1596018961861.gif -(324850B / 317.24KB, 232x228) Thumbnail displayed, click image for full size. 26.40 Hz Is this a schumann resonance?
https://www.youtube.com/watch?v=7IoG3smNSOo
26.40 Hz Is this a schumann resonance?

and how does it affect a person?
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Christiaan Huygens - Wed, 29 Jul 2020 11:04:06 EST 7S9nHJF6 No.58123 Reply
>and how does it affect a person?
It doesn't.

Just a heads up if you post crank stuff here you'd be either ignored, ridiculed or banned.

THE UNIVERSE

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- Sat, 27 Jun 2020 00:38:22 EST zrmSOSRH No.58098
File: 1593232702187.png -(46369B / 45.28KB, 192x187) Thumbnail displayed, click image for full size. THE UNIVERSE
FUCK
What if our known universe is a hole cut in the sheet being stretched by the class so the professor can demonstrate gravity how a marble will eventually orbit the hole?

If our universe is the hole cut in the sheet, what is it that exists outside the expanding universe?
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Riccardo Giacconi - Mon, 27 Jul 2020 16:09:01 EST 1EE90yn1 No.58121 Reply
Those aren't the questions you should be asking.

What color is the marble?
What is the professor's last name?
Who was the current POTUS at the time of this experiment?
Was the moon landing fake?
Where can I get more acid?

These are the questions you should be asking.

Candy Rockets!

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- Sun, 29 Mar 2020 00:56:38 EST n+7z5RVF No.58034
File: 1585457798883.jpg -(11322B / 11.06KB, 138x365) Thumbnail displayed, click image for full size. Candy Rockets!
I just bought some KNO3 (stump remover) at the hardware store today and will be making my first attempt at DIY rockets in the very near future. I'll be starting with the standard 65/35 ratio and then working in other additives to fine tune. I'm using Spectricide brand KNO3 and cheap, grocery store table sugar purchased at Walmart. I'll be doing the cooking in a motel room that my employer rents for me when I travel, because if I blow myself up it'll be way more entertaining to do it in a motel. I plan on using heavy cardboard tubes (scrap material from work) for motor casings plugged on the ends with bentonite clay (kitty litter).

I'll post pics of my work as I go along assuming my IP doesn't get highjacked and give updates on mixes and results. If you are already doing this, chime in, post pics and rock(et) on!
7 posts and 1 images omitted. Click View Thread to read.
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Antony Hewish - Thu, 11 Jun 2020 20:44:45 EST lgt2I6fP No.58091 Reply
>>58034
THATS FOR REMOVING TREE STUMPS i might have to call someone i'm a bitch and you might hurt somebody
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Joseph-Louis Lagrange - Sun, 14 Jun 2020 22:47:55 EST wnBZ7ko+ No.58093 Reply
Did a full test of two grains today, with mixed results. The first grain - the smaller of the two - went off as expected but since my casings had no nozzles and were made of PVC, it was pretty unspectacular. The second, larger grain only burned about halfway, which was disappointing. I even tried burning the remainder from the other end and it still wouldn't completely burn, so I fucked something up. My guess is residual water left over from the manufacturing process.

On the plus side, my fuses (potassium permanganate/sulfur/silicone) worked great. They're not nearly as flexible as the YouTube video claimed they'd be, but they burn nice and slow and steady. I'd like to make some electronic matches but I don't have any potassium perchlorate and that shit is crazy expensive to buy. I'm pretty sure I can make some but that's probably a month-long process between setting up the equipment and then doing the synthesis. I'm going to try with KNO3 first and see if it works but KNO3 might be too unstable and there's a chance I could blow myself up.

As for the next batch of r-candy, I have some sorbitol now so I'm going to try dry mix again, since sorbitol's melting point is much lower than it's ignition point. Plus, if the YouTube video is to be believed, it's much easier to cast into grains. This time I'll be including a plug and nozzle to help build pressure. And finally, I'm not really impressed with sulfur as a burn rate enhancer so I'm going to get some iron oxide and try that.
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George Airy - Thu, 02 Jul 2020 18:03:55 EST lgt2I6fP No.58101 Reply
>>58034
Why not buy some rocket fuel from the hobby store? Tragedy how everyone ruins a thing like civilian rocketry by being mediocre. We could have been so smart, me and you OP.


SpaceX Demo-2

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- Mon, 25 May 2020 14:55:01 EST OIxQBpbG No.58076
File: 1590432901481.jpg -(407622B / 398.07KB, 1365x2048) Thumbnail displayed, click image for full size. SpaceX Demo-2
First launch of crewed US spacecraft since 2011 scheduled for Wed 27th, 4:33 p.m. ET, contingent on weather conditions. Space Shuttle veterans Robert Behnken and Douglas Hurley will pilot the spacecraft to the ISS.


Pictured: CrewDragon atop Falcon 9 at Launch Complex 39A, Kennedy Space Center, Florida, being readied for launch.
3 posts omitted. Click View Thread to read.
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birn - Sun, 14 Jun 2020 17:55:05 EST HeCUPa43 No.58092 Reply
>>58076
you work at vector? these little dogs flying themselves into space.
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Friedrich Bessel - Mon, 15 Jun 2020 12:54:18 EST qrVaTXg3 No.58094 Reply
>>58092
Lockheed and Martin have vectors and matrices divisions
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elon musk - Mon, 22 Jun 2020 18:00:21 EST qrVaTXg3 No.58097 Reply
thank you for success on falcon codex


Frightening sound of space and at the same time soothing

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- Fri, 10 Jan 2020 13:23:33 EST 70mxgl7D No.57955
File: 1578680613397.jpg -(73279B / 71.56KB, 500x333) Thumbnail displayed, click image for full size. Frightening sound of space and at the same time soothing
https://www.youtube.com/watch?time_continue=309&v=lRkPfsLg9Mc&feature=emb_logo
With what program did he create this sound?
3 posts omitted. Click View Thread to read.
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birn - Wed, 03 Jun 2020 01:04:33 EST HeCUPa43 No.58084 Reply
1591160673635.jpg -(297030B / 290.07KB, 1680x1050) Thumbnail displayed, click image for full size.
>>57955
it's called visting your old people. its aslo a type of terrable void like reading the firebird book. like an alien touching you. trying to make an exotic. just-in case put your old people away in a place they cannot be a nuesance. harmless
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Bernhard Schmidt - Thu, 04 Jun 2020 17:57:43 EST X5wvlBRg No.58085 Reply
>>58084
isnt there no sound in the vaccum of space????

fractals are the way secrets of the universe ?

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- Sat, 29 Jun 2019 13:14:33 EST AO8Gahk0 No.57752
File: 1561828473859.jpg -(555646B / 542.62KB, 1899x1105) Thumbnail displayed, click image for full size. fractals are the way  secrets  of the universe ?
fractals are the way secrets of the universe ?

https://www.youtube.com/watch?v=1fYCaC3hcc8

https://www.youtube.com/watch?v=4ZTpEtWikoY
User is currently banned from all boardsUser is currently banned from all boards 3 posts omitted. Click View Thread to read.
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Anders Angstrom - Sun, 08 Mar 2020 00:52:02 EST f2ZZbPdY No.58012 Reply
>>57752
I'm sure it's the programming code of the universe
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Joseph Taylor Jr. - Mon, 30 Mar 2020 07:20:05 EST AO8Gahk0 No.58035 Reply
>>58012
I also adhere to your point of view
User is currently banned from all boardsUser is currently banned from all boards
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justin bryant - Sun, 24 May 2020 16:25:55 EST HeCUPa43 No.58075 Reply
>>57752
kolidascrocpes are not the showing of the univerise im pretty sure your able to see thatt once in yoyr life.

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