Astronomy and Space

Get your science fix here: research, quackery, activism and all the rest
Post Reply
User avatar
Grumble
Light of Blast
Posts: 4691
Joined: Mon Nov 11, 2019 1:03 pm

Re: Astronomy and Space

Post by Grumble » Wed Nov 29, 2023 10:57 pm

Cheers for that, not much chance in the NW though. Copied your post to my family group as we’re spread around
where once I used to scintillate
now I sin till ten past three

User avatar
Gfamily
Light of Blast
Posts: 5124
Joined: Mon Nov 11, 2019 1:00 pm
Location: NW England

Re: Astronomy and Space

Post by Gfamily » Wed Nov 29, 2023 11:24 pm

Grumble wrote:
Wed Nov 29, 2023 10:57 pm
Cheers for that, not much chance in the NW though. Copied your post to my family group as we’re spread around
It might be worth checking on Friday evening, as the forecast is a bit better, and you never know.
My avatar was a scientific result that was later found to be 'mistaken' - I rarely claim to be 100% correct
ETA 5/8/20: I've been advised that the result was correct, it was the initial interpretation that needed to be withdrawn
Meta? I'd say so!

Pishwish
Clardic Fug
Posts: 161
Joined: Mon Nov 11, 2019 7:43 pm

Re: Astronomy and Space

Post by Pishwish » Mon Dec 04, 2023 6:38 pm

Things haven't been going great for the European launch industry recently. The upgraded small Vega launcher has not returned to flight since a high profile launch failure last year, the war in Ukraine has ended medium-lift Soyuz launches from Guyana, and the heavy-lift Ariane 6 rocket looks set for further delays.
And now some propellant tanks for the last unupgraded Vega rocket, due to launch ESA's Biomas satellite in 2024, have been found in a landfill.https://europeanspaceflight.com/the-cas ... ant-tanks/

They can't make new ones, and the only spares are some old tanks intended for qualification testing. They may use these, or try to adapt the rocket so it can use the upgraded upper stage.

IvanV
Stummy Beige
Posts: 2585
Joined: Mon May 17, 2021 11:12 am

Re: Astronomy and Space

Post by IvanV » Mon Dec 11, 2023 8:10 pm

Tonight's the night Betelgeuse will apparently disappear for about 10 seconds at about 0017 GMT, due to occultation by an asteroid.

Sadly it is clouding up here.

User avatar
Gfamily
Light of Blast
Posts: 5124
Joined: Mon Nov 11, 2019 1:00 pm
Location: NW England

Re: Astronomy and Space

Post by Gfamily » Mon Dec 11, 2023 9:01 pm

IvanV wrote:
Mon Dec 11, 2023 8:10 pm
Tonight's the night Betelgeuse will apparently disappear for about 10 seconds at about 0017 GMT, due to occultation by an asteroid.

Sadly it is clouding up here.
Need to be in Southern Spain or thereabouts.
ETA this map I found online
Image
My avatar was a scientific result that was later found to be 'mistaken' - I rarely claim to be 100% correct
ETA 5/8/20: I've been advised that the result was correct, it was the initial interpretation that needed to be withdrawn
Meta? I'd say so!

IvanV
Stummy Beige
Posts: 2585
Joined: Mon May 17, 2021 11:12 am

Re: Astronomy and Space

Post by IvanV » Mon Dec 11, 2023 9:48 pm

Gfamily wrote:
Mon Dec 11, 2023 9:01 pm
IvanV wrote:
Mon Dec 11, 2023 8:10 pm
Tonight's the night Betelgeuse will apparently disappear for about 10 seconds at about 0017 GMT, due to occultation by an asteroid.

Sadly it is clouding up here.
Need to be in Southern Spain or thereabouts.
ETA this map I found online
Oddly, I did wonder if it was only locally visible, when I first read about this a couple of weeks ago. But I came away with the impression it would be widely visible. Which is clearly nonsense on reflection. The point is widely made in more recent articles.

User avatar
Gfamily
Light of Blast
Posts: 5124
Joined: Mon Nov 11, 2019 1:00 pm
Location: NW England

Re: Astronomy and Space

Post by Gfamily » Mon Dec 11, 2023 9:53 pm

IvanV wrote:
Mon Dec 11, 2023 9:48 pm
Gfamily wrote:
Mon Dec 11, 2023 9:01 pm
IvanV wrote:
Mon Dec 11, 2023 8:10 pm
Tonight's the night Betelgeuse will apparently disappear for about 10 seconds at about 0017 GMT, due to occultation by an asteroid.

Sadly it is clouding up here.
Need to be in Southern Spain or thereabouts.
ETA this map I found online
Oddly, I did wonder if it was only locally visible, when I first read about this a couple of weeks ago. But I came away with the impression it would be widely visible. Which is clearly nonsense on reflection. The point is widely made in more recent articles.
One of the methods of measuring the size of asteroids involves observing how long a stellar occultation lasts, and also observing from a range of latitudes around the 'centre path' to determine the 'width' of the asteroid as it passed the star.
My avatar was a scientific result that was later found to be 'mistaken' - I rarely claim to be 100% correct
ETA 5/8/20: I've been advised that the result was correct, it was the initial interpretation that needed to be withdrawn
Meta? I'd say so!

User avatar
Gfamily
Light of Blast
Posts: 5124
Joined: Mon Nov 11, 2019 1:00 pm
Location: NW England

Re: Astronomy and Space

Post by Gfamily » Wed Jan 24, 2024 2:03 pm

Professor Chris Lintott is the Gresham Professor of Astronomy and is giving a talk on Oumuamua, the asteroid that came from interstellar space this evening.
Can be watched online and will be available on catch up later.
https://www.gresham.ac.uk/whats-on/oumuamua
My avatar was a scientific result that was later found to be 'mistaken' - I rarely claim to be 100% correct
ETA 5/8/20: I've been advised that the result was correct, it was the initial interpretation that needed to be withdrawn
Meta? I'd say so!

User avatar
Gfamily
Light of Blast
Posts: 5124
Joined: Mon Nov 11, 2019 1:00 pm
Location: NW England

Re: Astronomy and Space

Post by Gfamily » Thu Jan 25, 2024 3:17 pm

Gfamily wrote:
Wed Jan 24, 2024 2:03 pm
Professor Chris Lintott is the Gresham Professor of Astronomy and is giving a talk on Oumuamua, the asteroid that came from interstellar space this evening a while ago.
On catch-up now https://www.gresham.ac.uk/watch-now/oumuamua
My avatar was a scientific result that was later found to be 'mistaken' - I rarely claim to be 100% correct
ETA 5/8/20: I've been advised that the result was correct, it was the initial interpretation that needed to be withdrawn
Meta? I'd say so!

User avatar
Gfamily
Light of Blast
Posts: 5124
Joined: Mon Nov 11, 2019 1:00 pm
Location: NW England

Re: Astronomy and Space

Post by Gfamily » Sat Feb 03, 2024 4:34 pm

Famously, a NASA mission to Mars was lost because of one calculation being done in Imperial measures rather than in metric.
Here's a tweet about what happened.
https://x.com/pronounced_kyle/status/17 ... 45755?s=20
My avatar was a scientific result that was later found to be 'mistaken' - I rarely claim to be 100% correct
ETA 5/8/20: I've been advised that the result was correct, it was the initial interpretation that needed to be withdrawn
Meta? I'd say so!

Post Reply