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Prof. Sam Lawler
Prof. Sam Lawler
@sundogplanets@mastodon.social  路  activity timestamp 2 weeks ago

Reposting for those not bridged to BlueSky, and to add alt-text, because this is important!

Jonathan McDowell @planet4589.bsky.social posted this morning: "The number of active satellites in orbit has now passed the 14000 mark according to my estimates"

A histogram of the number of active satellites in Earth orbit over time, colour-coded by Starlink, other maneuverable payloads, and non-maneuverable payloads.  The number steadily increases with about equal fraction maneuverable and non maneuverable, from 1960 until 2000, when there's a small jump in the number of maneuverable payloads.  And then in 2019 Starlink starts shooting up and absolutely dominates the overall number.  The total number of active satellites follows a hockey-stick shape, where the inflection point is 2019 when Starlink started launching.
A histogram of the number of active satellites in Earth orbit over time, colour-coded by Starlink, other maneuverable payloads, and non-maneuverable payloads. The number steadily increases with about equal fraction maneuverable and non maneuverable, from 1960 until 2000, when there's a small jump in the number of maneuverable payloads. And then in 2019 Starlink starts shooting up and absolutely dominates the overall number. The total number of active satellites follows a hockey-stick shape, where the inflection point is 2019 when Starlink started launching.
A histogram of the number of active satellites in Earth orbit over time, colour-coded by Starlink, other maneuverable payloads, and non-maneuverable payloads. The number steadily increases with about equal fraction maneuverable and non maneuverable, from 1960 until 2000, when there's a small jump in the number of maneuverable payloads. And then in 2019 Starlink starts shooting up and absolutely dominates the overall number. The total number of active satellites follows a hockey-stick shape, where the inflection point is 2019 when Starlink started launching.
Lazarou Monkey Terror 馃殌馃挋馃寛
Lazarou Monkey Terror 馃殌馃挋馃寛
@Lazarou@mastodon.social replied  路  activity timestamp 2 weeks ago

@sundogplanets @planet4589.bsky.social
With all this debris soon to come down it's like there has been a war in LEO....

#Space #Starlink #LEO #KesslerSyndrome

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KB
KB
@decembr14@mastodon.scot  路  activity timestamp 4 months ago

I鈥檝e spent a significant part of my professional life in the satellite industry, and in recent years I鈥檝e been increasingly troubled by the explosion in development and deployment of large constellations of small satellites in low earth orbit (LEO). This excellent (long read) article sets out all the reasons why, especially the effects on launch capacity, frequency spectrum regulation, and avoidance of physical and electronic interference.

https://www.thespacereview.com/article/5044/1

#Space#Satellite#LEO#SpaceX

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paulyd II - the wrath of caro-kann liked this activity
鈽嗏媶Okie Space Queen
鈽嗏媶Okie Space Queen
@OkieSpaceQueen@scicomm.xyz  路  activity timestamp 6 months ago
#Oklahoma

July 1

Check out the Western sky tonight about 9:30 to see Mercury, Mars, and the Moon.

The bright star between Mercury and Mars that appears closer to Mars is Regulus, the heart of the Lion.

#Moon#Mercury#Mars#Leo#Stargazing

screenshot from the planetarium app Stellarium showing a digital rendering of the night sky looking west just after sunset. The planets Mercury, and Mars are shown with the Moon
screenshot from the planetarium app Stellarium showing a digital rendering of the night sky looking west just after sunset. The planets Mercury, and Mars are shown with the Moon
screenshot from the planetarium app Stellarium showing a digital rendering of the night sky looking west just after sunset. The planets Mercury, and Mars are shown with the Moon
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鈽嗏媶Okie Space Queen
鈽嗏媶Okie Space Queen
@OkieSpaceQueen@scicomm.xyz  路  activity timestamp 6 months ago
#Oklahoma

July 1

Check out the Western sky tonight about 9:30 to see Mercury, Mars, and the Moon.

The bright star between Mercury and Mars that appears closer to Mars is Regulus, the heart of the Lion.

#Moon#Mercury#Mars#Leo#Stargazing

screenshot from the planetarium app Stellarium showing a digital rendering of the night sky looking west just after sunset. The planets Mercury, and Mars are shown with the Moon
screenshot from the planetarium app Stellarium showing a digital rendering of the night sky looking west just after sunset. The planets Mercury, and Mars are shown with the Moon
screenshot from the planetarium app Stellarium showing a digital rendering of the night sky looking west just after sunset. The planets Mercury, and Mars are shown with the Moon
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