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Sunshine

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Posts posted by Sunshine

  1. 10 minutes ago, Barry-W-Fenner said:

    Hi Sunshine, is the trapezium the 4 stars in the center of orion? Or is there more to it than that, I have seen these many times but if they are not the trapezium what am I to look for?

    Thank you

     

    Baz

    Yes, it is E and F stars in the trapezium which are the real challenge, for my eyes at least.

    5CF211AB-F8EA-4616-A55C-C205C34E0CD6.jpeg

    • Like 7
  2. 4 hours ago, Davey-T said:

    But why does everything spin to start with :icon_scratch:

    All masses in space distort the fabric of spacetime, the classical example would be the heavy ball placed on a taught sheet of fabric. The ball creates a well in the fabric, objects fall into an orbit around the ball falling toward the centre. In the case of our solar system, the most massive object being the sun, at the centre, the planets follow the well created in the fabric of space in circles around the sun. With respect to the spinning motion of galaxies, i would assume that such a well created by a galaxy would become more severe towards the centre of a galaxy due to the much higher concentration of stars towards the core of a galaxy. I imagine a huge well, being deepest at the core of a galaxy where stars are much closer, their proximity and concentration would mimic a single gargantuan mass. This i imagine would set into motion all other stars out to the edge of said galaxy in a circular motion, slowly falling towards the centre.

    fabric_of_space_warp.jpg

  3. 34 minutes ago, LukeSkywatcher said:

    This just arrived. Anyone care to guess what it is? I certainly wouldn't have known had I not had a certain need and looked it up..

    I have no idea, maybe something to grasp or form something judging by the handle and screw for tightening it?

  4. 7 minutes ago, Demon Barber said:

    Hi Sunshine, don`t waste anymore time, youi have a couple of choices ,remove alminium,carefully, and replace with a strip of laminate,having sanded the remains of any adhesive, or sand the aluminium and cover with laminate,then trim to correct width,Repace "Nylon blocks" with  virgin teflon. Try  this company for bits "

    http://www.scopestuff.com/#ATM Stuff

    Regards

    Mike

    Thanks, I realize now I mentioned those were Nylon, they are in fact Teflon, whether they're "virgin" Teflon as opposed to "sullied" Teflon, I could not say lol.

  5. I was wondering if dob owners  with similar dob’s could weigh in on something.  The mirror box cradles on my dob rest on what seems to be nylon pads, the cradles themselves have what seems to be an aluminum strap that rests on these nylon pads. 
    When using the scope, I guess the nylon wears away at the aluminum, this creates a nasty powder which ends up covering the aluminum straps and inevitably smears on my clothes when handling the mirror box, is this wear normal?. For two surfaces which shouldn’t produce too much friction, it certainly seems as though something is wearing away too quickly no?. I use a very small amount of petroleum jelly one in a while on the strap to keep movements smooth, just a thin film.

     

    4CA24447-BC1F-480F-BF20-F97BF8671D74.jpeg

    569CBA74-5505-49CC-94ED-5259BC23EDAE.jpeg

  6. 4 hours ago, Barry-W-Fenner said:

    I managed to get out very briefly last night for about 30mins -New Dew Shield looks to be blocking out unwanted light nicely. I only had a glimpse at various stars and The stunning M45 but it was worth it. I am hoping to get some good viewing in tonight. Fingers crossed the sky stays clear today. 

     

    A pic of my 8" Dob and huge 40" dob attached 🙂🙂🙂

     

    baz

    DSC_0372.JPG

    I have to say, this is the first time I've seen a Dob with a dew shield.

    • Like 2
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