Forum Replies Created
-
AuthorPosts
-
David Swan
ParticipantAn excellent image Peter – seems fitting that there should be one of the sun posted up here at the summer solstice. And there are a few active regions visible on the sun too, which is a bonus.
David Swan
ParticipantThanks Robin. I didn’t know that a CV in outburst has that spectral appearance. Hopefully with further work things will get cleared up as much as possible.
David Swan
ParticipantThanks Robin – makes sense.
David Swan
ParticipantVery nice. In the medium term I think I’ll look at buying a short focal length refractor. It is lovely to have a wide field of view.
David Swan
ParticipantIn addition to the maximum stacked image on my member’s page, I have created a short video from the same frames. It runs at 5fps. https://1drv.ms/u/s!Agvxu8wNOxpAcskxKKX5lQZyCh4
David Swan
ParticipantI’ll be looking as often as I can. I had trouble getting access to this patch of sky too!
David Swan
ParticipantV392 Per is noticeably dimmer than the nearby TYC star now. Here’s an image from this eve (13 May) – UV/IR block only. Time in filename is UT. I have measured the mag as 9.8 (CV).
David Swan
ParticipantI am perhaps extending this frivolous sidetrack beyond its natural life … notwithstanding this, the New Scientist for a long time ran letters on nominative determinism in its Feedback section. Weedon and Splatt published lots of urology research.
David Swan
ParticipantI took some frames through the StarAnalyser 100 this evening. I’m pleased to see that my spectrum looks very like yours – the expert’s – but of course mine is lower res. The Halpha emission was indeed striking in the images!
1 May 2018 at 9:26 pm in reply to: Question: proper motion of star, solar system object, artefact or other? #579409David Swan
ParticipantThanks Robin. Hopefully the nova will remain bright enough till the weekend for me to deploy my C8 + StarAnalyser on it. I was a bit tired yesterday to attempt some low res spectroscopy. Your stuff looks great – I look forward to seeing how the spectrum evolves.
David Swan
ParticipantUnfortunately my experience is that fate is rarely on my side on these sorts of matters!
David Swan
ParticipantWow, it is bright!
David Swan
ParticipantThanks for pointing this out – and I see Denis has put an image of the nova and field on his member’s page. Time to get my StarAnalyser out!
David Swan
ParticipantYes, it will be great to see something in white light again. Latest SOHO image is promising…
David Swan
ParticipantYes, of course it could indeed be real. I just posted my image up in case it turned out to be a longer-lived phenomenon. Point meteor may be a good candidate. Transparency last night was excellent.
David Swan
Participant50 x 10s frames, median stack, midpoint of imaging run: 20:40 GMT. Unfortunately no bright signal at the same position.
David Swan
ParticipantI’ve scrutinised my 10th March image of M51 and indeed there’s no evidence of this transient. I’ll try to get some images this evening. It’s clear skies in Tynemouth at the moment, but of course this is unlikely to remain the case as the sky darkens! David
David Swan
ParticipantI have some experience with this.
The latest version of the Nexstar + handset has a serial to USB converter built in. The handset connects to the mount via the telephone-style cable, and you connect your PC to the Nexstar + handset with a mini USB cable.
IMHO, the free Celestron handset emulator software that runs on the PC is dreadful. I have also been unimpressed by other software that is capable of controlling the scope (pointing model, goto) such as Skysafari.
I prefer being at the scope, eyepiece in, and aligning and finding objects with the handset. I then swap out the star diagonal plus eyepiece with the camera when all is good.
So you can do operation via PC, but the Nexstar mount is not up to remote control like the very much more expensive mounts such as the Paramount series.
David Swan
ParticipantGood job all – submitters and editorial team. An enjoyable read on Sun. David
David Swan
ParticipantVery good paper ;). The authors state that the very high apparent magnitude of the host star (-27) precluded further studies of the host star and planet with their telescope. I aim to follow up the authors’ work with my own observations of this mystery planet as it comes to opposition, even though its southerly declination will be a problem.
-
AuthorPosts