JohnBarentine, to space
@JohnBarentine@astrodon.social avatar

This ensures that more big, bright are coming: "A Block 1 satellite would have 10 times the capacity of the company’s 1,500-kilogram BlueWalker-3 prototype; [Block2] would be twice as big and have 10 times the capacity of a Block 1 BlueBird." (via @spacenews_inc)

(Also, a reminder that this comms mode is potentially very harmful to ground-based radio astronomy.)

https://spacenews.com/verizon-plots-100-million-direct-to-smartphone-satellite-investment/

JohnBarentine, to Astronomy
@JohnBarentine@astrodon.social avatar

Our IAU Centre for the Protection of the Dark and Quiet Sky from Satellite Constellation Interference paper on observations of the prototype is finally out in the latest print edition of Nature accompanied by a News & Views piece by @sundogplanets.

https://www.nature.com/nature/volumes/623/issues/7989

JohnBarentine, to space
@JohnBarentine@astrodon.social avatar

"The spectacle offered by a very dark night sky no longer just contains stars and planets that are standing still. We now also see numerous satellites… and only their movement allows us to distinguish them from the natural stars."

https://english.elpais.com/science-tech/2023-11-06/boom-in-satellites-changes-the-sky-forever.html

#Satellites #Space #Astronomy #BlueWalker3 #Starlink #NightSky

heiseonline, to random German

#Verpasstodon

Der erste von 100: Riesensatellit BlueWalker 3 heller als fast alle Sterne

AST SpaceMobile will mit riesigen Satelliten Smartphones online bringen. Nun bestätigt eine ausführliche Analyse die Befürchtungen in der Astronomie.

https://www.heise.de/news/Studie-zu-Riesensatellit-BlueWalker-3-Bisweilen-heller-als-fast-alle-Sterne-9330965.html?wt_mc=sm.red.ho.mastodon.mastodon.md_beitraege.md_beitraege

#ASTSpaceMobile #Astronomie #Bluewalker3 #Internetzugang #Lichtverschmutzung #Satelliten

GirlInSpace, to news

A new paper examines the alarming brightness of #BlueWalker3 a big communications satellite of ~64.3 m2. At times it outshines 99% of the stars in the sky. One such satellite is no problem, but it may soon be followed by hundreds more. #News

👉
https://www.nature.com/articles/d41586-023-03054-x

JohnBarentine, to space
@JohnBarentine@astrodon.social avatar

Our Nature paper about the AST SpaceMobile is out: https://www.nature.com/articles/s41586-023-06672-7

In it we conclude that "the expected build-out of constellations with hundreds of thousands of new, bright objects will make active satellite tracking and avoidance strategies a necessity for ground-based telescopes."

Here is some media coverage of it so far:

https://www.nytimes.com/2023/10/02/science/bluewalker3-ast-spacemobile-astronomy.html

https://www.newsweek.com/satellite-bright-night-sky-concerns-astronomers-1831351

https://www.theguardian.com/science/2023/oct/02/astronomers-light-pollution-tetris-block-satellite-bluewalker-3-stars-bright

Astromeg, to random

In @Nature today: "Huge new satellite outshines nearly every star in the sky" https://www.nature.com/articles/d41586-023-03054-x plus research article on the high optical brightness of this satellite.

(I took this myself on November 30th 2022 with my phone from the back garden. That streak is passing through Cygnus 😳)

heiseonline, to random German

#Verpasstodon

Dank Riesensatellit: Erstes 5G-Telefonat über BlueWalker mit normalem Smartphone

Seit einem Jahr kreist der Riesensatellit BlueWalker 3 um die Erde und wird für Tests genutzt. Handelsübliche Smartphones kommen darüber schnell ins Internet.

https://www.heise.de/news/Danke-Riesensatellit-Erstes-Satellitentelefonat-ueber-5G-mit-normalem-Smartphone-9313071.html?wt_mc=sm.red.ho.mastodon.mastodon.md_beitraege.md_beitraege

#5G #Bluewalker3 #Breitbandausbau #Funklöcher #Internetzugang #Mobilfunk #Vodafone

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