Search found 1315 matches

by rwilkinson
Mon Jan 20, 2020 2:49 pm
Forum: Physics, Space Science and Theories
Topic: Starlink's "string of pearls"
Replies: 5
Views: 445

Re: Starlink's "string of pearls"

Have a look towards the SW (near to Venus) around 6:40 this evening:
starlink_20jan.png
starlink_20jan.png (74.52 KiB) Viewed 38 times
Where the orbital path is green the satellites will be sunlit, but where it turns grey they pass into eclipse.
by rwilkinson
Sun Jan 19, 2020 9:49 am
Forum: Astronomical events
Topic: Comet 2017 T2 (PanSTARRS)
Replies: 4
Views: 827

Re: Comet 2017 T2 (PanSTARRS)

I caught the comet again from my garden last night.
It's a bit brighter than it was in November, but the tail is not as prominent:
c2017t2_18jan.jpg
Comet 2017 T2 on 18-Jan. 83x 60-sec with Mx716 on C8 at f.3.5
c2017t2_18jan.jpg (81.35 KiB) Viewed 47 times
by rwilkinson
Sat Jan 18, 2020 8:20 am
Forum: Physics, Space Science and Theories
Topic: Starlink's "string of pearls"
Replies: 5
Views: 445

Re: Starlink's "string of pearls"

There should be some opportunities to see these satellites over the coming week. Tonight they will be passing over Spain and France a few minutes before 6pm: 2020-01-18 STARLINK Train.jpg so they will appear low in the South from here: 2020-01-18 view.png They will be much higher in the sky later in...
by rwilkinson
Mon Jan 13, 2020 2:42 pm
Forum: Astronomical events
Topic: Comet 2017 T2 (PanSTARRS)
Replies: 4
Views: 827

Re: Comet 2017 T2 (PanSTARRS)

Towards the end of this month the comet will pass close to the famous Double Cluster.
This is its position on 27th January:
c2017t2_double.png
Cartes du Ciel chart showing the comet's position on 27-Jan
c2017t2_double.png (103.76 KiB) Viewed 117 times
Sadly the comet is only around 9th magnitude, so it will be difficult to spot even in binoculars; but it should present a good imaging opportunity.
by rwilkinson
Mon Jan 13, 2020 2:07 pm
Forum: Absolute Beginners
Topic: Beginners' Guide from The Sky At Night
Replies: 0
Views: 47

Beginners' Guide from The Sky At Night

Last night's episode provided a concise half-hour introduction to visual astronomy for beginners: https://www.bbc.co.uk/iplayer/episode/m000db8r/the-sky-at-night-a-beginners-guide I noted that all their young star-gazers had been kitted out with identical night-vision red-LED head-torches, just like...
by rwilkinson
Sun Jan 12, 2020 2:41 pm
Forum: Physics, Space Science and Theories
Topic: Starlink's "string of pearls"
Replies: 5
Views: 445

Re: Starlink's "string of pearls"

An observer in Fort Worth (Texas) has posted a video of "the train" of new Starlink satellites on the day of their launch:
https://youtu.be/FBbzAFXoloQ
It really does look like an airborne train-load of carriages on this clip!
by rwilkinson
Thu Jan 09, 2020 4:28 pm
Forum: Physics, Space Science and Theories
Topic: Starlink's "string of pearls"
Replies: 5
Views: 445

Re: Starlink's "string of pearls"

Some discussion of the potential impacts of these mega-constellations of satellites on astronomical research:
https://www.bbc.co.uk/news/science-environment-51049746
by rwilkinson
Tue Jan 07, 2020 8:17 am
Forum: Physics, Space Science and Theories
Topic: Starlink's "string of pearls"
Replies: 5
Views: 445

Re: Starlink's "string of pearls"

Their latest batch of sixty satellites (" Starlink 2 ") was launched overnight: https://www.rocketlaunch.live/launch/starlink-3 The Satflare website has predictions of their positions, which will be updated once their orbits are measured: https://www.satflare.com/track.asp?q=StarLinkLaunch&sck=1#TOP...
by rwilkinson
Sat Dec 28, 2019 8:47 am
Forum: Astronomical events
Topic: Comet 2017 T2 (PanSTARRS)
Replies: 4
Views: 827

Re: Comet 2017 T2 (PanSTARRS)

This comet isn't brightening much at the moment: it's still around magnitude 10. Hence the revised prediction is that it will peak at just 8th magnitude in May. The Open University 's team have recently fixed a scheduling problem with their robotic COAST facility, so last night I was able to catch t...
by rwilkinson
Fri Dec 27, 2019 1:07 pm
Forum: Physics, Space Science and Theories
Topic: Starlink's "string of pearls"
Replies: 5
Views: 445

Starlink's "string of pearls"

As we enter the New Year, prepare for more interference from bright satellite trails: https://www.bbc.co.uk/news/science-environment-50870117 Shortly after their previous launch in November Cheryl spotted a "train" of lights in the pre-dawn sky one morning, but at the time we weren't sure what they ...