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James Lancashire
ParticipantI would have thought a late one given the narrow QUA peak , but need to track back to see proximity to radiant. With recordings from a wide swathe of England & Wales there should be good flight trajectory to be calculated.
10 January 2023 at 8:14 am in reply to: Possible visibility of Virgin Orbit launch from the UK on January 9th #615068James Lancashire
ParticipantBBC reports satellites were lost. Expensive and embarrassing 🙁
https://www.bbc.co.uk/news/science-environment-64218883James Lancashire
ParticipantIMO flux graph is at https://meteorflux.org/rt#QUA
James Lancashire
ParticipantThe is a flux graph at IMO
https://meteorflux.org/rt#GEMJames Lancashire
ParticipantThere is one in Braintree commemorating James Challis
James Lancashire
ParticipantI saw post-occ at 0600 with small binocs through double glazed window. Mars not naked eye so close to Moon.
James Lancashire
ParticipantVery interesting. Though hasn’t Jean Meeus already done calculations like this? Or the BAA Computing Section?
James Lancashire
ParticipantThe exhibition is at the Royal Albert Hall. Free entry.
Exhibition open days will be Thursday 29 September, Friday 7 October and Friday 21 October, 10am – 4pm.
https://www.royalalberthall.com/tickets/events/2022/apollo-remastered/James Lancashire
ParticipantSad news. I remember often seeing him round the Cambridge telescopes on clear nights. Obit on IoA site:
https://www.ast.cam.ac.uk/content/professor.roger.griffin.has.died.age.85Are any of the ‘Star Men’ left?
James Lancashire
ParticipantThe 2-minutes of totality is in about 25 minutes (1607-1609 UT)
James Lancashire
ParticipantAlso live stream at https://www.youtube.com/watch?v=zEHcZE4qcDE
Clear view from Neuquén province, Argentina, located in the west of the country, at the northern end of PatagoniaJames Lancashire
ParticipantAccording to BAA comet info (JDS) the comet was discovered on 2020 Mar 27 so we have just 4 months of observations out of 4200 or 6800 years.
I suspect the ‘increase’ in orbital period is simply due to a longer arc of observations which has revised the orbital elements rather than genuine non-gravitational effects around perihelion.
According to in-the-sky the inclination is 129deg so the comet will hardly encounter planets for perturbations. And with semi-major axis at 364AU it will very quickly be well away from the plane of the solar system, plus very hard to detect!
Playing with in-they-sky’s orbit diagram, perihelion was ‘superior’ (and for all ‘inner’ planets). The comet passes through descending node outside Mars approx Oct 2020 which is well away from all the planets’ positions. So it’s a gravitational orbit till next perihelion!
James Lancashire
ParticipantObserved from 21:15-21:45 UT. Strong twilight. Comet picked up in 15x70B at 21:25 UT.
Naked eye with averted vision at end, despite very low altitude. Decent tail ~2deg.
Mag and coma estimates impossible due to strong twilight and no comp stars.
Glad to have photo. Taken at 21:45 UT. 50mm f/5.6 6s ISO 400.24 May 2020 at 11:07 pm in reply to: Help needed for a final time – image Venus and the Moon #582499James Lancashire
ParticipantVery low view. Lucky after cloudy evenings recently.
Mercury is level with Moon top centre.
Probably the last show from Venus after spectacular spring showing.26 April 2020 at 3:37 pm in reply to: Help needed for a final time – image Venus and the Moon #582361James Lancashire
ParticipantAm curious as to why Tuesday 28th rather than the much closer conjunction tonight (Sunday 26th).
Will try for a fourth monthly photo will the weather holds!James Lancashire
ParticipantThis was a mobile snap from Sandwich, Kent at 0352UT.
James Lancashire
ParticipantMaggie Aderin-Pocock has a centre spread on current star and planet visibility. Bit basic for BAA members but could be useful publicity for children and novice adults to become interested.
Link to paid reading at https://www.thetimes.co.uk/article/discover-the-joy-of-stargazing-in-the-time-of-coronavirus-qwqvk7d3r
29 March 2020 at 8:42 pm in reply to: Help needed :) Image Venus and the Moon for Parallax Project #582188James Lancashire
ParticipantBrief gap in clouds last night at Sandwich, Kent. Do you want other months by email?
28 March 2020 at 9:51 am in reply to: Help needed :) Image Venus and the Moon for Parallax Project #582158James Lancashire
ParticipantI have Jan & Feb conjunction images on my mobile phone. Aiming for tonight, cloud permitting. Do you need a larger image scale e.g. DSLR?
James Lancashire
ParticipantThough I didn’t notice much from the RAS itself. I would have thought they could have marketed sets and FDCs. Instead I found several on a global online auction site…
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