Stargazers Lounge Uses Cookies

Like most websites, SGL uses cookies in order to deliver a secure, personalised service, to provide social media functions and to analyse our traffic. Continued use of SGL indicates your acceptance of our cookie policy.

Welcome to Stargazers Lounge

Register now to gain access to all of our features. Once registered and logged in, you will be able to contribute to this site by submitting your own content or replying to existing content. You'll be able to customise your profile, receive reputation points as a reward for submitting content, while also communicating with other members via your own private inbox, plus much more! This message will be removed once you have signed in.

Relpet

Advanced Members
  • Content count

    282
  • Joined

  • Last visited

Community Reputation

198 Excellent

2 Followers

About Relpet

  • Rank
    Star Forming
  • Birthday 03/06/39

Profile Information

  • Gender
    Male
  • Interests
    Astronomy, films, history books, French Resistance, sitting in the sun pondering the ineffable mysteries of life.
  • Location
    South-west France

Recent Profile Visitors

425 profile views
  1. As a result of a thread I started just a few days ago I bought a 17Ah Phaze 4 in 1 jump starter from Halfords for £40 on the advice of a member who told me the battery in the case is the same as that in the Celestron/Skywatcher. The Phaze has two cigar lighter outlets and even has a USB port for charging things like your mobile 'phone if suitable. From the responses I got it seems you would be paying about £100 just for the SkyWatcher sticker on the side of their branded 17Ah. The chap I bought my EQ£-2 Synscan from demonstrated it's functionality before I handed over the cash by powering up from a similar, clearly well-used, jump start battery. I'm sure other members will respond in a similar vein.
  2. Thanks for the tip, Geoff, but I've just picked one up from my local Halfords. After a recent eye operation I'm stuck in England until I get the all-clear, probably late March. So if we do get a clear sky in southern England some time in the next 30-40 days I'm off chocks and ready to go. In passing, I needed a couple of M4 bolts to attach a new red dot finder. Homebase is closest. Forget it. Pre-packaged items with a choice of about 12 different roofing bolts. Toolstation or Screwfix would sell me a packet or box if I knew what size I wanted. I got what I wanted in an old-fashioned hardware store in Horsham for 40p. Any French DIY shop stocks an extraordinarily wide range of screws, nuts, bolts, washers which you can mix and match and buy by the maximum you can cram into a given size plastic bag at a fixed price per bag so if you are not sure of the size you can try before you buy or suck it and see when you get home with the selection you picked. Their economy may be in ruins, their politics are mystifying and the cost of the civil service is eye-watering but sometimes the French do get it right.
  3. Knowing as much as I do, (pretty well zilch), about portable power supplies is what had me running to the forum for advice. I've never been let down yet and your observation is valued. It is, indeed, a four-hour ferry and twelve hours on the road from where I am at present.
  4. I think the next response from D Wright answers your question. Belt and braces come to mind.
  5. Existing "tank" is 600 miles and a cross-channel ferry away. Lame excuse I know.
  6. Drove past Halfords today Never thought to drop in. Would rather buy something like this over the counter and that looks the business. Many thanks.
  7. I'm lucky enough to do most of my observing from our yard in deepest France where I am close to a domestic power point and where I also have a Celestron 17a power tank. For occasional use in deepest Surrey - which means a drive to a dark site to escape the LP from Gatwick, Guildford, Dorking, Horsham etc - I need something to power an EQ3-2 mount. Would this be any good please? http://www.ebay.co.uk/itm/Maypole-12v-3-1-Portable-1600cc-Car-Battery-Booster-Jump-Starter-Power-Pack-/320645098035?hash=item4aa7efea33 If not any other suggestions under £50 appreciated.
  8. I'm lucky enough to spend half the year in France where I do most of my stargazing. Friends there just told me they have had three gloriously clear nights in a row! Oh to be in England? Not just now... I am surprised that the latest version of the SW manual I downloaded did not mention that fix so hats off to you - again. Peter
  9. Blimey, Helen. What a wonderful response. The chap who sold it to me had no idea! Many thanks. Peter
  10. I just bought this mount second-hand. The seller took me on a tour to sjow it worked, then packed it all into the aluminum case he provided. Putting it all back together back home I found a piece left over, pictured. I don't seem to be able to find a use for it. Any suggestions welcome!
  11. Mine arrived this morning. Based on their own measurement guide I ordered medium and they are a perfect fit.
  12. I just bought one of these for a second-hand Skywatcher EQ3-2 https://www.firstlightoptics.com/power-accessories/baader-outdoor-telescope-power-supply-128v-15a.html albeit from my local astro shop. This is what Baader say about it. "This 12.8 volt /1.5 Amp switching power supply with protective-disconnect plug serves all Celestron telescopes up to the CGEM-DX series. At little higher price it offers enormous benefits compared to common department store indoor units. Conventional power supplies having a 12V nominal voltage are made for use in your "living room". When used outside in the cold the voltage will reduce with temperature. Already at -10°C the remaining voltage output may have gone down to only 10.5 V. The motors of many telescope mounts will behave erratic at such low voltage. Especially the motor driver electronics then tries to replace the missing voltage by draining ever more Amps until both - power supply and mount electronics - will stall or become damaged. Many users then blame the mount and it´s messy electronics - instead of checking wether an inadaequate power supply may be the culprit. The Baader Outdoor Telescope Power supply offers continuous 1.5 Amp/ < 12 volt DC voltage all accross the AC voltage range from 90 to 260volt. Even at extreme cold the voltage can not go down as far as to damage the electronic components or motors of your telescope mount. 19 Watt/ 1.5 Amp permanent power ensure ample reserve for smooth tracking even at full photographic instrument load and high torque variations due to changing telescope balance. In addition to the outdoor voltage of 12.8V also the thermal working temperature has been designed for -25°C to +40°C. The connecting cord measures 2.5m in length. This is longer than usual to ensure that the wall plug portion of the power supply can be safely stored down the tripod legs so that the power cord will not become a trip-wire." Hope this helps
  13. Thanks, Chris. Prining out now from Dave's link - and have saved pdf it to my PC! Peter
  14. Having just bought a Cheshire (to supplement a laser which I think I've been using quite successfully) I thought I'd refer back to the invaluable guide written by AstroBaby and referred to so many times in this forum and around the world but the link is down everywhere I go. It would be unfair to expect AstroBaby to keep her site running indefinitely as a public service at her expense and she deserves all the compliments she has been paid but is there a new link or does anyone have it saved as a pdf file to post, please? My printed copy is 600 miles away, along with the laser collimator.
  15. Looks like a good tip. They remind me of the greengrocer stalls in the street market when I was a lad in the forties. The stall holders all had fingerless gloves in the winter.