“Losing the Sky” event this evening

Forums General Discussion “Losing the Sky” event this evening

Viewing 6 posts - 1 through 6 (of 6 total)
  • Author
    Posts
  • #574983
    Mark Phillips
    Participant

    You may have seen this advertised already and Prof. Catherine Heymans was on Radio 4 this morning publicising it, but this important event is happening this evening. It’s free and you can watch in live on YouTube from 7:30pm BST

    Live public discussion with Andy Lawrence, Brian Eno, Catherine Heymans, Mark McCaughrean from ESA, Amy Mehlman from Viasat, and many others.

    https://www.eventbrite.co.uk/e/155652112659

    Or just go to YouTube directly

    https://www.youtube.com/watch?v=ESoM3Noz5zk

    We’ve managed to get together an amazing group of people to talk about this disturbing subject.

    Mark

    #584364
    Dominic Ford
    Keymaster

    I would add that Andy Lawrence’s book of the same title is also well worth a read: https://www.amazon.co.uk/Losing-Sky-Andy-Lawrence-ebook/dp/B08W9NR7DX

    It’s the best in-depth technical account I’ve seen of what Starlink’s motivations are, how much of a problem it is, and why international regulation doesn’t work.

    #584365

    SpaceX and others- appear to have a disregard for the impact on Astronomical research when they continually pollute our skies.

    I have seen too many Astro-images that have been captured by the Amature- Astronomical community. Ruined because of these satellites. 

    #584367
    Daryl Dobbs
    Participant

    I’ve heard that some of Space x satellites leak into frequencies used by radio astronomy.

    Since March I’ve been following with interest V1405 Cas, I can’t remember a session observing with my binoculars that a satellite didn’t cross my field of view. They are certainly a pest

    #584372
    Nick James
    Participant

    Daryl – There are certainly a lot more trails on my images this summer compared to previous years. For imagers the way that you stack subframes can help to a certain extent. The animated GIF attached is the same frame stacked as average and as sigma clip. There are 5 satellite trails on this image, two bright ones and three faint. The sigma clip stack definitely suppresses the bright ones. Photometrically the two stacks are the same. 

    #584374
    Daryl Dobbs
    Participant

    Interesting clip, alas with oneweb Starlink etc the problem will get worse, I wonder how professional observatories cope to protect the sensors of their instruments  

Viewing 6 posts - 1 through 6 (of 6 total)
  • You must be logged in to reply to this topic.