#bluewalker — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #bluewalker, aggregated by home.social.
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...also 5 Satelliten reichen wohl nicht. Aber selbst falls sie eine globale Abdeckung anstreben würden, bräuchten #BlueWalker dafür anscheinend um Größenordnungen weniger Satelliten als #Starlink.
https://www.perplexity.ai/search/kann-ast-bluewalker-mit-nur-5-vhhoGwT6QPqFMuyLxKlqUA
P.S.: Ich finde Lichtverschmutzung *nicht* gut.
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...also 5 Satelliten reichen wohl nicht. Aber selbst falls sie eine globale Abdeckung anstreben würden, bräuchten #BlueWalker dafür anscheinend um Größenordnungen weniger Satelliten als #Starlink.
https://www.perplexity.ai/search/kann-ast-bluewalker-mit-nur-5-vhhoGwT6QPqFMuyLxKlqUA
P.S.: Ich finde Lichtverschmutzung *nicht* gut.
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Look at this little cutie ❤️
This #rackmount #ups will keep my #selfhosted #nextcloud instance running in case of blackout and shutdown all the gear gracefully before the #battery runs out of juice!
#rack #selfhost #selfhosters #powerwalker #bluewalker -
Look at this little cutie ❤️
This #rackmount #ups will keep my #selfhosted #nextcloud instance running in case of blackout and shutdown all the gear gracefully before the #battery runs out of juice!
#rack #selfhost #selfhosters #powerwalker #bluewalker -
Look at this little cutie ❤️
This #rackmount #ups will keep my #selfhosted #nextcloud instance running in case of blackout and shutdown all the gear gracefully before the #battery runs out of juice!
#rack #selfhost #selfhosters #powerwalker #bluewalker -
@spaceflight Hello ToryBruno #ULA have u tried ASTS Space Mobile ? #BlueWalker 🚀
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@spaceflight Hello ToryBruno #ULA have u tried ASTS Space Mobile ? #BlueWalker 🚀
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@spaceflight Hello ToryBruno #ULA have u tried ASTS Space Mobile ? #BlueWalker 🚀
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Despite what happened to #NASA @astrobotic lander enroute to the moon 🌖 a brave daring space faring future awaits us in the not too distant future.
Unless of course we blow it all up or let the planet 🌍 burn before that 🙄
#NASA #Starship #Orion #LunarGateway #ESA #CSA #jaxa #NASAArtermis #CISLunarEconomy #BlueWalker
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Despite what happened to #NASA @astrobotic lander enroute to the moon 🌖 a brave daring space faring future awaits us in the not too distant future.
Unless of course we blow it all up or let the planet 🌍 burn before that 🙄
#NASA #Starship #Orion #LunarGateway #ESA #CSA #jaxa #NASAArtermis #CISLunarEconomy #BlueWalker
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Despite what happened to #NASA @astrobotic lander enroute to the moon 🌖 a brave daring space faring future awaits us in the not too distant future.
Unless of course we blow it all up or let the planet 🌍 burn before that 🙄
#NASA #Starship #Orion #LunarGateway #ESA #CSA #jaxa #NASAArtermis #CISLunarEconomy #BlueWalker
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Ein weiterer Beleg dafür, warum #Außerirdische uns nicht besuchen:
Genau das braucht die Menschheit: Noch mehr #Lichtverschmutzung. Weil das ja so gut ist.
"Der erste von 100: Riesensatellit #BlueWalker 3 heller als fast alle #Sterne
#ASTSpaceMobile will mit riesigen #Satelliten Smartphones online bringen. Nun bestätigt eine ausführliche Analyse die Befürchtungen in der #Astronomie."
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Ein weiterer Beleg dafür, warum #Außerirdische uns nicht besuchen:
Genau das braucht die Menschheit: Noch mehr #Lichtverschmutzung. Weil das ja so gut ist.
"Der erste von 100: Riesensatellit #BlueWalker 3 heller als fast alle #Sterne
#ASTSpaceMobile will mit riesigen #Satelliten Smartphones online bringen. Nun bestätigt eine ausführliche Analyse die Befürchtungen in der #Astronomie."
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Ein weiterer Beleg dafür, warum #Außerirdische uns nicht besuchen:
Genau das braucht die Menschheit: Noch mehr #Lichtverschmutzung. Weil das ja so gut ist.
"Der erste von 100: Riesensatellit #BlueWalker 3 heller als fast alle #Sterne
#ASTSpaceMobile will mit riesigen #Satelliten Smartphones online bringen. Nun bestätigt eine ausführliche Analyse die Befürchtungen in der #Astronomie."
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Proud to be co-author to this just published paper in #Nature, about the high brightness of the prototype satellite, #BlueWalker 3, for a future 243-satellite satellite constellation:
https://www.nature.com/articles/s41586-023-06672-7
Several hundred of magnitude zero satellites in the sky will not only alter the outlook of the sky, but also means astronomical observatories will have to do active mitigation. We call for more attention to such unwanted side-effects as part of launch permit assessments.
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Proud to be co-author to this just published paper in #Nature, about the high brightness of the prototype satellite, #BlueWalker 3, for a future 243-satellite satellite constellation:
https://www.nature.com/articles/s41586-023-06672-7
Several hundred of magnitude zero satellites in the sky will not only alter the outlook of the sky, but also means astronomical observatories will have to do active mitigation. We call for more attention to such unwanted side-effects as part of launch permit assessments.
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Proud to be co-author to this just published paper in #Nature, about the high brightness of the prototype satellite, #BlueWalker 3, for a future 243-satellite satellite constellation:
https://www.nature.com/articles/s41586-023-06672-7
Several hundred of magnitude zero satellites in the sky will not only alter the outlook of the sky, but also means astronomical observatories will have to do active mitigation. We call for more attention to such unwanted side-effects as part of launch permit assessments.
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@JohnBarentine I thought you might be interested in today's front page story on spaceweather.com #bluewalker
https://spaceweather.com/archive.php?view=1&day=31&month=07&year=2023
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@JohnBarentine I thought you might be interested in today's front page story on spaceweather.com #bluewalker
https://spaceweather.com/archive.php?view=1&day=31&month=07&year=2023
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@JohnBarentine I thought you might be interested in today's front page story on spaceweather.com #bluewalker
https://spaceweather.com/archive.php?view=1&day=31&month=07&year=2023
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AST SpaceMobile Confirms 4G Capabilities to Everyday Smartphones Directly From Space: https://parabolicarc.com/2023/06/21/space-spac-index-spacemobile-confirms-4g-signal-delivery-smartphones/ - the #BlueWalker 3 low Earth orbit satellite communicated with everyday smartphones reaching initial download speeds above 10 Mbps during Hawaii testing.
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AST SpaceMobile Confirms 4G Capabilities to Everyday Smartphones Directly From Space: https://parabolicarc.com/2023/06/21/space-spac-index-spacemobile-confirms-4g-signal-delivery-smartphones/ - the #BlueWalker 3 low Earth orbit satellite communicated with everyday smartphones reaching initial download speeds above 10 Mbps during Hawaii testing.
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AST SpaceMobile Confirms 4G Capabilities to Everyday Smartphones Directly From Space: https://parabolicarc.com/2023/06/21/space-spac-index-spacemobile-confirms-4g-signal-delivery-smartphones/ - the #BlueWalker 3 low Earth orbit satellite communicated with everyday smartphones reaching initial download speeds above 10 Mbps during Hawaii testing.
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The launch of the first commercial satellites in AST SpaceMobile’s cellphone-compatible broadband constellation has slipped into 2024 - these satellites, known as Block 1, are now slated to launch in the first quarter of 2024 to low Earth orbit. The Block 1 satellites are 50% smaller than originally planned to speed up development, about the same size and weight as the company’s 1,500-kilogram #BlueWalker-3 prototype satellite that launched last November: https://spacenews.com/ast-spacemobile-discloses-further-satellite-delays-and-cost-increases/
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The launch of the first commercial satellites in AST SpaceMobile’s cellphone-compatible broadband constellation has slipped into 2024 - these satellites, known as Block 1, are now slated to launch in the first quarter of 2024 to low Earth orbit. The Block 1 satellites are 50% smaller than originally planned to speed up development, about the same size and weight as the company’s 1,500-kilogram #BlueWalker-3 prototype satellite that launched last November: https://spacenews.com/ast-spacemobile-discloses-further-satellite-delays-and-cost-increases/
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The launch of the first commercial satellites in AST SpaceMobile’s cellphone-compatible broadband constellation has slipped into 2024 - these satellites, known as Block 1, are now slated to launch in the first quarter of 2024 to low Earth orbit. The Block 1 satellites are 50% smaller than originally planned to speed up development, about the same size and weight as the company’s 1,500-kilogram #BlueWalker-3 prototype satellite that launched last November: https://spacenews.com/ast-spacemobile-discloses-further-satellite-delays-and-cost-increases/
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The #BlueWalker-3 satellite, @AST_SpaceMobile's prototype sat for direct cell phone communication, passing over my house in Leiden, the Netherlands earlier this evening, at mag +1.5.
Canon EOS 80D + Samyang 1.4/35 mm at F2, exposure 2 seconds, 800 ISO.
@IAU_CPS @Tregloan_Reed -
The #BlueWalker-3 satellite, @AST_SpaceMobile's prototype sat for direct cell phone communication, passing over my house in Leiden, the Netherlands earlier this evening, at mag +1.5.
Canon EOS 80D + Samyang 1.4/35 mm at F2, exposure 2 seconds, 800 ISO.
@IAU_CPS @Tregloan_Reed -
The #BlueWalker-3 satellite, @AST_SpaceMobile's prototype sat for direct cell phone communication, passing over my house in Leiden, the Netherlands earlier this evening, at mag +1.5.
Canon EOS 80D + Samyang 1.4/35 mm at F2, exposure 2 seconds, 800 ISO.
@IAU_CPS @Tregloan_Reed -
Observations of #BlueWalker 3 (BW3) beginning on December 8 indicate that its apparent brightness had decreased. We postulate that the orbital beta angle and resultant solar power considerations required an adjustment to the satellite attitude around that time. The amount of fading was up to 4 magnitudes. Satellite operators and astronomers can jointly address the adverse impact of bright satellites on celestial observations based on this finding: https://arxiv.org/abs/2301.01601
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Observations of #BlueWalker 3 (BW3) beginning on December 8 indicate that its apparent brightness had decreased. We postulate that the orbital beta angle and resultant solar power considerations required an adjustment to the satellite attitude around that time. The amount of fading was up to 4 magnitudes. Satellite operators and astronomers can jointly address the adverse impact of bright satellites on celestial observations based on this finding: https://arxiv.org/abs/2301.01601
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Observations of #BlueWalker 3 (BW3) beginning on December 8 indicate that its apparent brightness had decreased. We postulate that the orbital beta angle and resultant solar power considerations required an adjustment to the satellite attitude around that time. The amount of fading was up to 4 magnitudes. Satellite operators and astronomers can jointly address the adverse impact of bright satellites on celestial observations based on this finding: https://arxiv.org/abs/2301.01601
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Voor de ochtendploeg.
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RT @Marco_Langbroek
Video of a pass of the #Bluewalker 3 satellite, filmed this evening from Leiden, the Netherlands:
https://vimeo.com/779437239
Photometric data:
http://www.satobs.org/seesat/Dec-2022/0021.html
@IAU_CPS
https://twitter.com/Marco_Langbroek/status/1601008427626438657 -
Voor de ochtendploeg.
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RT @Marco_Langbroek
Video of a pass of the #Bluewalker 3 satellite, filmed this evening from Leiden, the Netherlands:
https://vimeo.com/779437239
Photometric data:
http://www.satobs.org/seesat/Dec-2022/0021.html
@IAU_CPS
https://twitter.com/Marco_Langbroek/status/1601008427626438657 -
Voor de ochtendploeg.
---
RT @Marco_Langbroek
Video of a pass of the #Bluewalker 3 satellite, filmed this evening from Leiden, the Netherlands:
https://vimeo.com/779437239
Photometric data:
http://www.satobs.org/seesat/Dec-2022/0021.html
@IAU_CPS
https://twitter.com/Marco_Langbroek/status/1601008427626438657 -
Video of a pass of the #Bluewalker 3 satellite, filmed this evening from Leiden, the Netherlands:
https://vimeo.com/779437239
Photometric data:
http://www.satobs.org/seesat/Dec-2022/0021.html
@IAU_CPS -
Video of a pass of the #Bluewalker 3 satellite, filmed this evening from Leiden, the Netherlands:
https://vimeo.com/779437239
Photometric data:
http://www.satobs.org/seesat/Dec-2022/0021.html
@IAU_CPS -
Video of a pass of the #Bluewalker 3 satellite, filmed this evening from Leiden, the Netherlands:
https://vimeo.com/779437239
Photometric data:
http://www.satobs.org/seesat/Dec-2022/0021.html
@IAU_CPS -
Astronomers say a new, huge satellite is as bright as the brightest stars - Enlarge / Observation of a BlueWalker 3 pass from Oukaimeden Observator... - https://arstechnica.com/?p=1901197 #bluewalker #astronomy #science #space #ast
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Astronomers say a new, huge satellite is as bright as the brightest stars - Enlarge / Observation of a BlueWalker 3 pass from Oukaimeden Observator... - https://arstechnica.com/?p=1901197 #bluewalker #astronomy #science #space #ast
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Astronomers say a new, huge satellite is as bright as the brightest stars - Enlarge / Observation of a BlueWalker 3 pass from Oukaimeden Observator... - https://arstechnica.com/?p=1901197 #bluewalker #astronomy #science #space #ast
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The #IAU Center for the Protection of the Dark and Quiet Sky from Satellite Constellation Interference expresses concern about the recently launched prototype #BlueWalker 3 satellite’s impact on astronomy. New measurements reveal that this low Earth orbiting satellite is now one of the brightest objects in the night sky, outshining all but the brightest stars. In addition, the satellite’s use of terrestrial radio frequencies poses a new challenge to radio astronomy: https://www.iau.org/news/pressreleases/detail/iau2211/
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The #IAU Center for the Protection of the Dark and Quiet Sky from Satellite Constellation Interference expresses concern about the recently launched prototype #BlueWalker 3 satellite’s impact on astronomy. New measurements reveal that this low Earth orbiting satellite is now one of the brightest objects in the night sky, outshining all but the brightest stars. In addition, the satellite’s use of terrestrial radio frequencies poses a new challenge to radio astronomy: https://www.iau.org/news/pressreleases/detail/iau2211/
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The #IAU Center for the Protection of the Dark and Quiet Sky from Satellite Constellation Interference expresses concern about the recently launched prototype #BlueWalker 3 satellite’s impact on astronomy. New measurements reveal that this low Earth orbiting satellite is now one of the brightest objects in the night sky, outshining all but the brightest stars. In addition, the satellite’s use of terrestrial radio frequencies poses a new challenge to radio astronomy: https://www.iau.org/news/pressreleases/detail/iau2211/
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Just observed the dreaded #BlueWalker 3 satellite - https://arxiv.org/abs/2211.09811 - for the first time during the 'good' pass https://www.heavens-above.com/passdetails.aspx?&satid=53807&mjd=59909.7451026624 over Bochum, Germany: when it marched close to low Altair (+0.8 mag.) it was a bit fainter but rising higher it became about as bright as this star. Beware: patchy cloudiness made serious photometry impossible. But yes, this 64 square meter monster *is* obnoxiously bright in even partly cloudy urban skies. And they want 100+ and bigger satellites ... 😟
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Just observed the dreaded #BlueWalker 3 satellite - https://arxiv.org/abs/2211.09811 - for the first time during the 'good' pass https://www.heavens-above.com/passdetails.aspx?&satid=53807&mjd=59909.7451026624 over Bochum, Germany: when it marched close to low Altair (+0.8 mag.) it was a bit fainter but rising higher it became about as bright as this star. Beware: patchy cloudiness made serious photometry impossible. But yes, this 64 square meter monster *is* obnoxiously bright in even partly cloudy urban skies. And they want 100+ and bigger satellites ... 😟
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Just observed the dreaded #BlueWalker 3 satellite - https://arxiv.org/abs/2211.09811 - for the first time during the 'good' pass https://www.heavens-above.com/passdetails.aspx?&satid=53807&mjd=59909.7451026624 over Bochum, Germany: when it marched close to low Altair (+0.8 mag.) it was a bit fainter but rising higher it became about as bright as this star. Beware: patchy cloudiness made serious photometry impossible. But yes, this 64 square meter monster *is* obnoxiously bright in even partly cloudy urban skies. And they want 100+ and bigger satellites ... 😟
