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Hi Tony,
one (of the many) mistakes I made when constructing my roll-off roof observatory I embedded the exteriors supports for the exterior rails (where the roof rides over onto when open) within the building, so when the eventually rotted, it was a particularly difficult job to replace them.
So, I’d suggest thinking about how you might replace them when that needs to be done. Unlike the main building the exterior rails will be subject to all the weather…
Look forward to hearing how the project goes.
Clear skies
Callum
Last night was quite clear at Kelling and saw quite a few through the night – but just incidental to the deep sky observing 🙂
Callum
Hi Peter,
the contact form link does not show for yourself (why would you want to send a message to yourself? – rhetorical question 🙂
But others when logged in will see a Send Mail link like:
So all should be working!
Cheers. Callum
Hi David,
I don’t use one myself, but other options to consider are the
Ioptron SkyTracker – i’ve seen a lot of good images made using these.
Other newer things to think about are:
Ioptron SkyTracker Pro – more ‘heavy weight’
And something new I saw recently mentioned in Astronomy Now is the
SkyWatcher Star Adventurer Mini.
Would be interested to hear from anyone that’s tried these newer mounts.
Thanks, Callum
Hi Kevin,
Welcome to the BAA!
yes – just contact the section directors of the sections you are interested – you can use the contact forms on the website, or the email addresses in the back of the Journal.
You will be most welcome to the Deep Sky Section!
Cheers, Callum
Hi Tim,
I have looked into this a couple of times, but was not able to find an affordable route…
The last time I got in touch with a supplier (for a Raptor Kite from Laser 2000) they quoted a price starting at £6800.
If you find a ‘cheap’ source I would be interested.
Callum
Hi Denis,
I don’t know the answer, but I would try running the question past Jim Wild…
Cheers, Callum
Leslie Peltier’s Starlight Nights
Walter Scott Houston’s Deep-Sky Wonders (selections by Steve O’Meara)
And I too have a lot of affection for my 1950 epoch Norton’s
Callum
Hi Roger,
what was the calibration process used – perhaps there was some normalisation along the way…
Cheers, Callum
Hi Bill,
I’m not sure I can spread much light – but it seems for me on the view of one of the forums there is a Views column present when logged on, but not if not…
I’m not sure if this has changed with the latest site update or not.
Cheers, Callum
Thanks for the suggestions Bill & William.
I did use hi AGC before (with another lens), but the images were fairly noisy, so I switched to low.
I will try some more experimentation, and rewiring the lens control sounds attractive.
Will report back on progress…
Cheers, Callum
Douglas Adams, H2G2
“But the plans were on display…”
“On display? I eventually had to go down to the cellar to find them.”
“That’s the display department.”
“With a flashlight.”
“Ah, well, the lights had probably gone.”
“So had the stairs.”
“But look, you found the notice, didn’t you?”
“Yes,” said Arthur, “yes I did. It was on display in the bottom of a locked filing cabinet stuck in a disused lavatory with a sign on the door saying ‘Beware of the Leopard.”Council meets six times a year, normally at Burlington House. Usually these are on the same day as an ordinary meeting (morning or afternoon preceding the OM).
There are something like 35 people on council. Usually council meetings are quite well attended, with something like 20 – 25. A few council members (principally section directors) who live far away rarely attend.
It’s always good to get ‘new blood’ onto council, so please do stand if you are interested. All that’s expected is an enthusiam to contribute to the work of the association.
Cheers, Callum
If you use refracting optics IR will focus at a different point to the visible – so will lead to blurry images.
With a reflector this does not happen. But the IR will still be detected (silicon detectors tend to be more sensitive to IR than visible light), and cause the colour balance to be off (usually appearing much redder).
But that is something you could correct in photoshop (or whatever…)Callum
Hi Nick,
I am not an expert on the technique, though I have some understanding of how it should work… What sort of telescope were you using to do the observation?
Thanks, Callum
Although I used to use a laser pointer at star parties, I have become rather reticent in recent years. They do look rather ‘cool’ at night, so i’m not sure i’d like to encourage those who don’t understand the dangers…
There are already restrictions on use near airfields, and sensible use at star parties will probably not be a problem – but you might end with a visit from the police regardless these days… I am not sure the hassle would be worth it.
Callum
The Who’s who page has been updated with elected trustees and members of counci:
https://britastro.org/about-who
Cheers, Callum
