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PhobosPhil

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    74
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About PhobosPhil

  • Rank
    Nebula

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  • Location
    South east England
  1. PhobosPhil

    Where is Rosetta now?

    I wonder how big the book of calculations is that was written in order to make that happen?
  2. PhobosPhil

    AP vs Visual astronomy

    At time of writing, it's 2 posts below this one.
  3. PhobosPhil

    UK Astro Buy & Sell

    I'm not 100% sure but I believe ABS have a mechanism whereby you have to use the email address you registered with when you message someone, else it doesn't go anywhere.
  4. PhobosPhil

    Rear cell replacement for Meade etx 125

    Took me a fair while, but I managed to find it..... http://wegatoptical.com/ Incidentally, i'm considering replacing it because I bought a used de-forked etx125 without proper researching into it and wasn't expecting the amount of mirror shift that occurs. However, "considering" is the key word. If I take off the existing rear cell, it includes removing the plastic bit that the rail is attached to - so as well as a $120 (it'll probably work out about £140 by the time i've done postage and tax) rear cell, i'd be looking at a set of rings - which would also need customising as I don't think anyone does rings for that size. I have the visual back and focuser already so they won't be extra. Haven't quite worked out if it's worth the expense yet!
  5. Hi all, A few years ago I remember seeing an american site selling a replacement rear cell for the Meade ETX 125. I can't seem to find it any more. It might be that it no longer exists, or it might just be that it's not high on the google search thing. I'm sure the original link came from someone on SGL, any ideas? Kind regards, Phil
  6. PhobosPhil

    and it took an expensive survey!!!

    Most roads that have streetlights have either a 30mph limit or a 40 limit. At that speed, I wouldn't have thought full beam was necessary.
  7. My hook was an out of focus photo of the dumbbell Nebula using a 300mm lense. Until that point, I wasn't aware that the stuff in the sky that isn't visible to the naked eye could be captured using "home" devices. I thought that kind of thing was reserved for space agencies with multi million pound kit.
  8. Shame she didn't stick her arm out and say "this one" when talking about Betelgeuse, seeing as it was right beside her.
  9. Hi all, Would anyone know what spec screw I would need to attach a finder shoe to a Meade 5000 80mm APO? I think it's an M4 but i'm not certain and I don't know the length. I was hoping someone had a finder attached to theirs and could tell me? Kind regards, Phil
  10. PhobosPhil

    Ye olde street lights problem

    Thanks for your replies, that's great. I'll have a read through the links and google West Sussex Council to see if they detail their lighting schemes. I don't think I will have any problems with direct views of streetlights, the new estate starts about 50m behind my garden but a neighbours garage separates where I set up my telescope and the new estate. I was mostly concerned about if there might be a massive increase in skyglow and was led to believe that the new street lights are better for that.
  11. PhobosPhil

    Ye olde street lights problem

    Hi all, Every now and again I read something about new streetlights that keep the direction of the light on the places that need it and help reduce light pollution. Does anyone know of any councils that actually use them, or have any info the actual lights? Right behind where I live an estate is being built. I've been trying to find out who is responsible for the street lighting decisions. So far, the developer didn't bother replying (I expected that, as my email didn't say "I want to buy one of your houses"), the council told me that the developer is responsible for installing the lights, but they're told what to install and to try the highways agency, which I will be doing very soon. However, it occurred to me that I should probably have a bit more info on alternatives before I go wading in! I was hoping that someone might know of another council that does use them, so I can tell my lot to ask them for details. Any info would be much appreciated, thanks.
  12. PhobosPhil

    Mounting rings and guiding

    After the goto has, er, gone there - isn't it supposed to track the object you've told it to go to? And if you haven't polar aligned properly the object drifts from the center of view?
  13. PhobosPhil

    Mounting rings and guiding

    It can very, the last time I tried it was about 20 seconds. But since last August i've had sessions where it was about 45 seconds, 1m 30 and the best was about 2mins. It may also vary depending on where in the sky i'm looking, but i'm not 100% sure about that as by then frustration has set in and I haven't analysed the photo's afterwards. I think it's my polar alignment technique. The goto doesn't get anywhere close to center on the stars during alignment. If I view through a 30mm eye piece the star is in the field of view, but it isn't in the 12mm one with the crosshairs. I'm sure I read somewhere that taking too long in between alignment stars stops it working properly, so it probably gets worse as I go on.
  14. PhobosPhil

    Mounting rings and guiding

    Ah right, thanks Chris, I didn't know that. Hmmm, maybe it's back to the drawing board rather than pay extra for an alternate fix!f
  15. PhobosPhil

    Mounting rings and guiding

    Thanks Olly, that looks ideal, however, the 5000 80mm doesn't come with a finderscope and as far as I can tell, there isn't screw holes or anything to attach it to. I always assumed that was by design and I was supposed to use a 30mm eyepiece to find stuff.
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