Search found 1412 matches

by rwilkinson
Fri Feb 28, 2020 11:22 am
Forum: Member Observations - Blogging
Topic: Comet-chasing - between the clouds
Replies: 0
Views: 7150

Comet-chasing - between the clouds

I've not had any "fresh" comets since my first sighting of C/2017 T2 last November, so I've been eagerly anticipating the appearance of C/2020 A2 (Iwamoto) . During our last clear night (a fortnight ago!) it was too low down, so last night I was keen to grab the opportunity. However the forecast was...
by rwilkinson
Mon Feb 17, 2020 3:30 pm
Forum: Physics, Space Science and Theories
Topic: Starlink's "string of pearls"
Replies: 9
Views: 6115

Re: Starlink's "string of pearls"

I've just watched a live webcast of the Falcon 9 launch of the latest batch of 60 Starlink satellites: https://youtu.be/8xeX62mLcf8 The satellites were successfully deployed into orbit, and will be using their ion propulsion units to manoeuvre into their final positions over the next few weeks. In t...
by rwilkinson
Fri Feb 14, 2020 1:59 pm
Forum: Physics, Space Science and Theories
Topic: Ultima Thule flyby - 1st January
Replies: 6
Views: 5948

Re: Ultima Thule flyby - 1st January

I've just discovered that Ultima Thule has a new name: Arrokoth (a Native American term meaning "sky" in the Powhatan/Algonquian language). Meanwhile, analysis of data from the flyby has been significant in the debate on how the planets formed: https://www.bbc.co.uk/news/science-environment-51295365
by rwilkinson
Fri Feb 07, 2020 4:39 pm
Forum: Astronomical events
Topic: Comet 2017 T2 (PanSTARRS)
Replies: 9
Views: 6195

Re: Comet 2017 T2 (PanSTARRS)

I had another go last night, and managed to get both the comet and Double Cluster within the same field:
c2017t2_6feb.jpg
C/2017 T2 on 6-Feb. 37x 85-sec with NEX5R on 80ED at f/4.8.
c2017t2_6feb.jpg (93.97 KiB) Viewed 5034 times
But the bright moonlight reduced the contrast, so I didn't catch any of the comet's tail.
by rwilkinson
Sun Feb 02, 2020 11:28 am
Forum: Astronomical events
Topic: Comet 2017 T2 (PanSTARRS)
Replies: 9
Views: 6195

Re: Comet 2017 T2 (PanSTARRS)

Last night I used one of the Takahashi FSQ-ED 4" refractors in New Mexico to get an image:
c2017t2_t20_2feb.jpg
C/2017 T2 with the Double Cluster on 2-Feb. 5x 120-sec with 106mm f/5 refractor.
c2017t2_t20_2feb.jpg (210.43 KiB) Viewed 5128 times
by rwilkinson
Wed Jan 29, 2020 8:04 pm
Forum: Physics, Space Science and Theories
Topic: Starlink's "string of pearls"
Replies: 9
Views: 6115

Re: Starlink's "string of pearls"

The fourth batch (of sixty) satellites were launched today:
A SpaceX Falcon 9 rocket launched the Starlink-4 mission on Wednesday, January 29, 2020 at 2:06 PM (UTC).
Launch, first stage recovery, fairing half recovery (1 of 2), and satellite deployment were successful
by rwilkinson
Mon Jan 27, 2020 2:02 pm
Forum: Astronomical events
Topic: Comet 2017 T2 (PanSTARRS)
Replies: 9
Views: 6195

Re: Comet 2017 T2 (PanSTARRS)

Last night I was hoping for an opportunity to catch the comet close to the Double Cluster.
There was a brief clear interval, but once I'd got the 'scope set up and aligned I only managed a single exposure before the cloud (and later fog!) descended again. :(
c2017t2_26jan.jpg
Comet 2017 T2 and the Double Cluster on 26-Jan.
85-sec with NEX5R on 80ED at f/4.8.
c2017t2_26jan.jpg (158.01 KiB) Viewed 5290 times
by rwilkinson
Mon Jan 20, 2020 2:49 pm
Forum: Physics, Space Science and Theories
Topic: Starlink's "string of pearls"
Replies: 9
Views: 6115

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 5708 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: 9
Views: 6195

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 5411 times
by rwilkinson
Sat Jan 18, 2020 8:20 am
Forum: Physics, Space Science and Theories
Topic: Starlink's "string of pearls"
Replies: 9
Views: 6115

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...