Category: All Sky Cameras

Estimate Direction of a live webcam from position of the moon at known time

I was looking at https://www.youtube.com/watch?v=9k_sg8rhsgk which is on the roof of the Lake Superior Maritime Visitor Center in Duluth, Minnesota at about 11:30 pm.  The moon was shining brightly on the water. From Google maps I found the satellite view, a rough idea of where the camera was pointing, and the latitude and longitude in
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Calibrating and documenting all images and videos on the Internet – Half Sky and All Sky Cameras

Facebook AllSky group – https://www.facebook.com/groups/172438633343696 I have found thousands of live web cameras on the Internet. Here is one that has stars often – https://www.youtube.com/watch?v=mb2ZzwShJog I saved a screen print of the whole page when found good stars. Then I opened that in an image viewer and clipped the sky. I went to https://nova.astrometry.net/upload and
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Comment on Chain Fountain videos

Chain Fountain 2 – Drill powered spool https://www.youtube.com/watch?v=bcsb1xAv7XA When the beads are in a jar, they have a vertical component of velocity to go up and over the rim, so the beads trajectory follows gravity. Since stress travels through the beads much faster than the beads themselves, the force of the faster beads in the
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Comments and questions for Facebook InTheSkyOrg and In-The-Sky.Org

https://www.facebook.com/intheskyorg/ All the material you post here. Is it also on your website? Can you index and organize it? If you post the same item several times, can you keep things together? You have good tools on your site, but they can be improved. There is no standard best practices form for easy and traceable
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Comments to AllSky group on Facebook

I bought this Arducam MIPI camera for the Raspberry Pi. It is 4672*3496 and the best that anyone seems to have gotten is 1 frame every 10 seconds. https://www.amazon.com/gp/product/B07W6LTFZC. I think it needs a $200 computer, not a $100 one. And some assembler or C programming. But then look at the time lapses posted by
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Comments about the International Cloud Atlas hosted by the Hong Kong Observatory

Hello, I am visiting CloudAtlas.wmo.int and I keep seeing this red note: Links in the image description will highlight features on the image. Mouse over the features for more detail. But, it actually requires a click for the region on the image to be outlined.  The instruction are correct, but should probably be in blue,
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Tweets about lossless sharing of astronomical images

Related: A desktop photo scanner can get 6400 dots per inch over 8.5*11 inches. That is 3.82976  GigaPixels with 32 bit colors. See also: PetaPixelProject.com with many 10 to 100 GigaPixel images. They use “Atlas Browser Based Viewer” that seems to work.  I am not recommending it, just noting they seem to be able to
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Comment on video Colorful sunrise / convection at sunset – 25 June 2020

UND Atmospheric Sciences – https://www.youtube.com/watch?v=eVvaJnSsri0 No numbers? No radar correlations? No models? No satellite correlations? No corrections for sun angle and lighting? No temperatures or pressures or wind speeds? No science? I expected more from “Atmospheric Sciences”. At least put two cameras and do a little 3D estimation. Frame to frame correlations and velocities? Estimate
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Current activities, The Internet Foundation, Aug 2021

For the Internet Foundation I try to track all global sensor networks. One of the dramatic changes the Internet allows is integration of data from many different sensors – cameras, telescopes with cameras, microscopes with cameras, electromagnetic, gravitational, seismic, acoustic. I am trying to get them all to have standards for archiving and sharing, standards
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Post on the Facebook “Allsky Camera” group about satellite transits of star and other things

https://www.facebook.com/groups/172438633343696 Dear Allsky, I went through over a thousand live webcams on the Internet to see what people are sharing live now. My estimate is somewhere around 10,000 overall. Many of them have half sky (show half the image with sky) and in those they will capture comets, meteors, satellites, stars, planets, planes and many
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