There’s plenty of clouds at the moment but I’m hoping for just a few gaps in the cloud tonight.  No Moon – and it should be the peak in the Geminid meteor shower (13th – 14th December 2009).  Went out for a bit of practice last night with the 40D piggy-backed on the C11 – just as well really as every picture was out of focus!  I know how to sort that particular problem out tonight – if it decides to clear.  Rather than squinting at the little dim LCD on the back of the 40D I shall hook up the laptop in “Remote Shooting” mode and use the Remote Liveview plus the magnifier to carefully focus (also through the laptop so no fumbly paws trying to do the job) the 40D.  When satisfied with the focus flick the switch from autofocus to manual (so things don’t change) and trigger the remote timer to take the frames.  It’s as much of a pallava as doing “real” deep-sky imaging with the main scope.  Please let’s have at least a couple of clear hours and plenty of meteors tonight – pretty please

Great day today (no – not the weather!) – put the side panels on the mini-WASP array, and Brian May sent me a copy of his new book “A Village Lost & Found”.  This is a beautiful publication and you can see the attention to detail that has gone into every part of creating this book.  Wonderful job Brian – well done – would make the Thesis look like an almost trivial exercise by comparison

With the side panels now on, it’s a matter of getting the second observatory built and buying the cameras for the two Sky 90s and the guide scope.

I bolted the mini-WASP telescope frame to the Paramount versa-plate to get a feel what the finished system will look like.  The funny-looking device sticking out the front of the frame is a counterbalance arm for the weight of all the equipment that will sit on the back of the telescopes.  I have left the two side panels off in this photo.  I have also left out the 2 Sky 90s from the bottom pair of holes as I need to remove the Robofocus units from them before fitting to the frame – I might do this tomorrow and update the photos.  The two holes at the top are for 2 x FSQ106 telescopes to be bought at some future (unknown) date, and these will be used for narrowband imaging.

This is going to be some beast to set up prior to an imaging run and I’m glad I didn’t make provision for any more telescopes as I don’t think it would be viable to get them all sorted without losing a lot of good imaging time per session.

I have just spent the WHOLE of today resurrecting an old computer which will be the main computer for the mini-WASP array.  Lots of silly little things have fought back hard and it’s only just started to give in now at 9:30 p.m.  It’s only a 1.12GHz Athlon with 1GB of memory, but it has XP Pro, 2 serial ports, a parallel port, and a load of USB ports on the back.  The Robofocus wants a serial port, the mount wants a serial (or USB) port, and the Starlight Xpress cameras which use a USB port don’t want to see anything on any of the other USB ports – so it will end up being one computer per imaging camera.  Unfortunately as each camera (on each of the 4 imaging scopes) will also need a serial port (for the Robofocus) it will mean 4 PCs altogether as laptops don’t seem to come with serial ports nowadays.  So it’s going to be quite a pain (computer-wise) to get the whole mini-WASP array working together as a single system.  I also only want one keyboard, mouse and screen of course due to the space limitations in the observatory.  So I might end up connecting the 4 PCs together via the LAN ports (and a hub) and using the main computer that I’ve resurrected today to “remote desktop” the three satellite computers – unless anyone out there has a better/more efficient way of doing this.

I have just unpacked the beast – it is the most solid piece of engineering I’ve come across in the field of astronomy – I just hope I can put it to full use.  I think a fully-loaded mini-WASP head will come in around 80 or 90 pounds, which is well within the capabilities of this mount and should hopefully ensure long life – provided I balance it all up nicely.  And therein lies a mod to the refractor mounting frame, I’ll be adding a counterweight bar (and weights) to the front of the frame to balance out all the equipment that will be hanging off the back.  Next job is to get the frame into the workshop for the mods.

UPS have just delivered the Paramount   Will now unpack – taking piccies as I go.  It’s come all the way from Germany!!

Well it wasn’t a two week wait to see what happened – I crumbled just a few days after the last mini-WASP report and ordered up a Paramount ME from Kieron at SCS Astro – it is due to be with me early next week  Well I’ve really “bin and gone and dunnit” now haven’t I?  As I’ve purchased the “heart” of the mini-WASP array, all that remains now is to integrate all the various bits of the system and get imaging with the thing.  Estimated first light timescale is June/July 2010 if I don’t get another dome to house the array, and a bit earlier in the year if I do need to get a second dome.  It’s all systems go for the mini-WASP at the New Forest Observatory – we are about to enter a new era of amateur deep-sky imaging!!!

It’s been about a year since my last report on this project, and that last article actually said very little   I am on the point of putting my hand in my wallet (you cannot begin to understand the amount of pain this gives me) to purchase the heart of the system – yes, I am very close to putting in an order for a Paramount.  The grant I applied for at the beginning of the year didn’t come off, so I am going to have to find the not insubstantial amount of cash to build the mini-WASP myself – I guess you can hear the squeals of pain from wherever you are located.  I have 2 x Sky 90s for imaging and a Megrez 80mm for the guide scope, I have one SXVF-M25C and the SXV guide camera – so I also need to purchase the latest SXVR-M25C for the second Sky 90.  I only have one Robofocus, so a second Robofocus is needed for the second Sky 90.  I won’t be getting the FSQ106 and H36 for the fourth slot in the head (for narrowband imaging) for quite some time.  I need to see if I can use my small Pulsar dome to house this lot, otherwise the bigger dome will also be needed.  Starting the slippery slope on the road to a mini-WASP array is clearly going to severely test my bank balance, that’s why it has been so long (2 years) since first discussing the project that I am finally coming to the point of getting the mount – this project is a huge committment.  Well, it still might be just hot air – I haven’t “gone and done it” yet, but in a couple of weeks we’ll see if I finally took the plunge   Until then, I wish you clear skies – even if it has been pouring with rain for the whole of this past week!

I was recently asked about a problem in maintaining polar alignment due to a heavy scope being cantilevered all over the place on a wedge.  The standard Celestron wedge (which I use) would also give you problems as the heavy C11 or C14 is moved around the night sky, mainly due to the open ended construction where a large box end is fairly free to flex as several kg worth of scope is swung around.  The solution is to close off the box end with some sheet aluminium – the thicker the better.  I used 2mm thick aluminium sheet and bent it to fit over the end of the wedge.  Some slots were cut to allow solid bolting of the sheet to the wedge and the result can be seen here.

The modification has transformed a basically unusable wedge into a wedge that has solidly supported my Hyperstar C11 since I started imaging towards the end of 2004.

Here’s how the two beer can pinhole cameras look on the South-facing wall of my house.  I hope we are not intending to sell within the next year or so as potential buyers may be put off by the sight.  However, pinhole camera number 1 is already operating (between the Equinoxes) and I shall start off pinhole camera number 2 in December to image between the Solstices.