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Mick H

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Posts posted by Mick H

  1. 11 minutes ago, StarGazingSiouxsie said:

    I have grown up with the 7Ps rule as now part of my DNA - Proper Planning & Preparation Prevents P*** Poor Performance. 

    Siouxsie, can you buy West Ham and run it probably pleeeeeeeeeeease? 😉

    I usually also take my time setting up, just sometimes I just cannot wait and thats when things go wrong.

    Leicster 0 West Ham 3 😀

  2. 3 minutes ago, globular said:

    Does having the tripod well levelled make any difference?

    I might have incorrectly convinced myself it does - but I find things are much closer to the centre if I spend a few more seconds making sure the spirit level dot is well centred rather then just getting it roughly level.

    Yes you are right globular, but not as critical as location time and date.

    Well thats what I have found, but I get my tripod as level as I can.

    And some nights are perfect and others not so, maybe I rush to much before the clouds come rolling in. 😉

    • Like 1
  3. 11 minutes ago, StarGazingSiouxsie said:

    So you have this issue, too - Star Sense providing reasonably accurate star & DSO gotos but a bit off on the planets?

    Yes I have that sometimes, but I just bring the planets back with the Telrad, maybe I should use up my ten user alignments more.

    And yes Telrad or Rigel Quick finders are great, better than the red dot thingy.

    • Like 1
  4. 9 minutes ago, NenoVento said:

    so getting a Starsense would actually have no sense, right?...

    Hi Neno, I would say for what you are trying to achieve you don't need StarSense.

    Polar aligned with wedge plus sky aligned via CPWI, plus you are going hibernate the mount.

    I have StarSense and love it, press auto align and away it goes and never fails from my position, plus it is great when you go to different locations. 

  5. 20 hours ago, LeeHore7 said:

    This upgrade on my imaging equipment arrived today, had the zwo asi120mc-s USB 3 on my wishlist for ages as always been out of stock, so took the plunge and bought it from 365Astronomy great sellers and communications, hopefully some clear skies for a few hours tonight and tomorrow night looking good so far to try out this beauty and hope to get some captures of Mars 

    IMG_20200828_221201.jpg

    👍

    Hi Lee, I have the same it arrived last week. 

    But sadly it has been cloudy with lots of rain, only tried the all sky camera so far.

    Looking forward to trying it on Moon/Planets soon. 🙏

    • Like 1
  6. Hi Siouxsie, glad you are happy with your Celestron's Lthium Power Tanks.

     I use TalentCent Rechargeable 12000mAh Lithium battery pack seen here:

    https://www.amazon.co.uk/gp/product/B0713T4XT9/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1

    I placed it in a Garmin gps bag and hung around the mount, so no more cord wrap. 🥳

    Very pleased with it, and has lasted three sessions without a recharge.

    • Like 1
  7. 1 hour ago, Andy38416 said:

    My scope is a Nexstar 8se and I only use 1.25 inch eyepieces. I mostly look at planets but not completely limited to this area.

    Hi Andy, I also have Nexstar 8se.

    For future reference you maybe should be looking at some Messier objects with your scope.

    I have just acquired a Astronomik UHC filter, and last Saturday manage to see M27 Dumbbell Nebula which stood right out.

    Also M13 Globular Cluster and the Double Cluster, I'm starting to go through the list.

  8. BS269, Just trying to help and found another bit of info:

    There are two types of vignetting to

    consider -- vignetting at the center of

    the field, and vignetting at the edge of

    the field. For planetary work you only

    care about the field center, but for other

    stuff you care about both.

     

    Vignetting at the field center does not

    depend on the eyepiece focal length / field

    size. It only depends on the scopes F ratio

    and the size of the prisms. Most of the binoviewers

    add about 5 inches to the optical path. So a

    unit with say one inch prisms should be OK

    with focal ratio 5" / 1" = F5 or slower.

    For one of the binoviewers with small

    prisms its 5" / (1/2") = F10 or slower.

     

    Vignetting at the field edge is more complex.

    It depends on the scope light cone, the size of

    prisms in the binoviewer, and the size of the

    eyepiece field stop. If the binoviewer is one of the

    microscope derived units with 12mm prisms, and

    you use an eyepiece with a 27mm field stop,

    the field edges are going to be completely

    vignetted (dark) no matter what the

    scopes focal ratio is. Fast scopes will probably

    have some vignetting at the field edge, even

    with large prisms -- maybe 50% light loss at the

    edge -- detectable but not terrible.

    • Thanks 1
  9. 3 hours ago, BS269 said:

    Is there anyway to calculate how much I would lose?

    Hi, I cannot help with your question but this might help:

    https://agenaastro.com/articles/guides/eyepieces-binoviewers/choosing-astronomy-eyepieces-for-binoviewers.html

    I have the WO binoviewer, but wished I had gone for the Baader MaxBright's to pair up with the Baader T2 diagonal which would make shortening the light path easier like in the pic below.

     

    wo.png

  10. I love my NexStar 8se goto.

    I added StarSense Auto align once I have added my location it stays in the mount, and can be setup in five minutes.

    I bring scope out plug in set date/time and away it goes, I don't like staring at laptop/iPhone so don't use wifi anymore as I have learnt so much about the sky.

    So for me using hand control, I Sky tour or tap in Messier objects and just sit there studying those for quite some time.

    If portability is what your after then as banjaxed stated a 127 Mak would be ideal.

     

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