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Dave In Vermont

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Everything posted by Dave In Vermont

  1. Dave In Vermont
    Astro_Baby's collimation-guide shows the off-set in fast Newtonians. Most instruction-guide do not - serving to compound people's confusion. Here's a copy of her guide to tuck-away for safe-keeping: Astro Baby's Collimation Guide.pdf Enjoy! Collimation becomes like riding a bicycle - the first-time can be a pain. Then it becomes simple. Dave
  2. Dave In Vermont
    Well - Thank you! I'll use it until it explodes, and keep the extant Pdf. on file regardless. Good find! Dave
  3. Dave In Vermont
    Ah! It works! Is this link going to stay up & running? Thank you - regardless. It fits the bill. Dave
  4. Dave In Vermont
    One of the best guides to collimation is written by a member here - Astro_Baby. Unfortunately her website is out-of-service. Otherwise I'd toss a link - it has an excellent illustration of the offset commonly found in fast-Newtonians (F5, F4, etc.). It's just a flat-out great guide for us owners of Newtonians, and passing out freely too. As her site is dead, here's a copy from my collection: Astro Baby's Collimation Guide.pdf Please let me know if you have any problem with the above link? Thanks! Hang onto the pdf. - Dave
  5. Dave In Vermont
    Greetings, Martin, & welcome to SGL - great to have you here! Always feel free to ask any questions, we love them. Enjoy! Dave
  6. Dave In Vermont
    Not yet! - Hic! It could be remedied though... Dave
  7. Dave In Vermont
    How 'bout the best image of the Horsehead Nebula - B33 - taken with a phone while drunk? evaD
  8. Dave In Vermont

    I just read an article in Universe Today on the launch of a satellite carrying USAF such & so. Lot's of photos by Ken Kramer(sic). And saying: "Delta IV rocket streaks to orbit after blastoff at 6:53 p.m EDT on Dec. 16, 2016 from Cape Canaveral Air Force Station, Fl,..." and similar. All stating this HAD happened on Dec. 16th, 2016! Repeatedly - HAD happened Dec. 16th! I can see making A mistake - but this was nothing BUT mistakes! What's today's date, anyone?

    1. Knighty2112

      Knighty2112

      Must have been an article sucked from the future in a mini worm hole to the past. Hehe! ;) 

    2. orion25

      orion25

      Wow! I didn't know we were in a time warp! Geesh! 

  9. Dave In Vermont
    I was wondering how long it would take before someone pointed this out! Yes - it will help a bit to turn it around so the mirror is in the bottom position of the tube, with the focuser on top. Ya gotta love it... Dave
  10. Dave In Vermont
    Greetings, C-O-E, and welcome to SGL - it's nice of you to join us all! We love questions, and helping to find their answers - so don't be shy in these many forums! Enjoy - Dave
  11. Dave In Vermont
    Simple and grab & go - one of my ST80 F/5 scopes solar-outfitted: I love these Helio-Pod's from FAR Laboratories in Massachusetts. They make finding & centering our Sun a breeze: BE VERY CAREFUL LOOKING AT THE SUN! CHECK & RE-CHECK YOUR EQUIPMENT. ALWAYS! Dave
  12. Dave In Vermont
    Unitron is my first guess as well. I'll try to attach a Unitron 1972 Catalog in the post here. But I have a more likely Unitron Catalog from 1956 - which is over 20mgs - which I can't send through SGL. If you'd like that, I'll send you a PM to email me at. I'll be glad to send it to you through email unitron72.pdf Hope this works & watch for a PM, Dave
  13. Dave In Vermont
    Just a minor-point for our new members here: 'vacuum' is not the member's name. It's the 'Rank' of new folks. Just look above the Rank for the name. Example: I am 'Dave In Vermont.' 'Little Green Man' is my Rank. As is ccdfreak the name of the member. The more posts you make, the higher your Rank becomes to things like 'Nebula' and/or 'Proto Star.' Don't feel like you need apologize - we all managed to stumble into this error in the start! Have fun - Dave
  14. Dave In Vermont
    If you have enough power for one more toy: http://davesastrotools.weebly.com/bahtinov-mask-guide.html You, or someone, may find this useful. Enjoy, Dave
  15. Dave In Vermont
    Meade AR-5 achromatic 127mm F/9.3 1182mm F.L. I just had a struggle in attaching - by means of a 2-pound rubber-mallet - a new visual back and 10:1 Crayford dual-focuser. Based on my report, the manufacturer (Antares) is having to re-design this item. I got it on, but a non-mechanic would easily have smashed their telescope in the process! It was a bear! Dave
  16. Dave In Vermont

    Hi Jan -

    I see you dropped in. I'm around, just busy fixing some things. Write me? Or I'll you as well. When I get a chance! I was thinking about you earlier today. Probably when you stopped by! :D

    All the best,

    Dave

  17. Dave In Vermont
    The Vaseline would raise my eyebrows right off - and I'd remove it - all of it using solvents - and applying a PTFE (Teflon®)-based lube like SuperLube®. Then I'd try iy and see if it wasworth keeping the thing, or sending it back. But that's me. Best wishes - Dave
  18. Dave In Vermont
    Stellarium has the ability to factor your light-pollution level into what you'll be able to see. As well as setting views through different eyepieces and scopes. If you don't yet have Stellarium, you can find it with a simple search - and it's totally free. Dave
  19. Dave In Vermont
    The letters seem to translate to BPTS and the numeral 5. But I have no idea of what this means. But here's a Cyrilic-English alphabet translation: Hope you can use it. Dave
  20. Dave In Vermont

    Leaving for a week or 5 on family gig Tuesday am. Hoping for better weather upon my return. Be carrying my binoculars and a few changes of clothing.

    As Arnold says - "I'll be back."

    Dave

    1. Piero

      Piero

      Have fun Dave and hopefully, many clear nights! :) 

    2. Ruud

      Ruud

      With my family we'd have to bring a medic along for such an adventure.

      fight_club3.jpg

      Enjoy!

    3. orion25

      orion25

      Have a safe trip. Hope you find some clear skies! :happy6:

      Reggie

  21. Dave In Vermont
    Yes - I wouldn't take a gamble on this. Not if it spells out: WARNING! THESE FOCAL REDUCERS ARE DESIGNED STRICTLY FOR THE LNTECH CAMERAS, MODEL LN300 AND FOR OUR COOLED T-MOUNT CAMERAS. THEY WILL NOT WORK WITH ANY OTHER CAMERA WITHOUT MODIFICATION. THESE REDUCERS EMPLOY THE MOST AGGRESSIVE, HIGHEST REDUCTION FACTOR THAT IS POSSIBLE GIVEN THE TELESCOPE CHARACTERISTICS, CCD SIZE AND REDUCER TO SENSOR CORRECT SPACING. IT MAY BE POSSIBLE TO MODIFY THE FOCAL REDUCERS TO WORK WITH OTHER 1/3" CCD CAMERAS. CONTACT US FOR MORE DETAILS. WE WILL NEED TO MEASURE YOUR CAMERA MOUNT-FLANGE TO SENSOR DISTANCE TO ANALYZE IF A SPACER COULD BE MODIFIED TO ACCOMODATE THE REDUCER REQUIREMENTS. MallinCam has an excellent 3.3 FR available, which I have. It's not 1.8, but it does work. I've bookmarked the site above to see if they do release a 1.8 for other systems. Thank you for the link! Dave
  22. Dave In Vermont
    For myself, the lure of video-ap is the intent to do it in any way one wishes to. Can you do a screenshot and, later on, stack them and process the daylight <koff!> out of them? Yes! Can you just let the camera feed, in realtime, to an external monitor? Yes! Can you use an expensive video-cam specializing in deep-space astro-objects that cost you over £1,000? Yes! Can you use a cheap web-cam that's only collecting dust & cobwebs? Yes! This is how video-ap tempted me to jump in. Now I've seen it splinter into two camps: Big £££ & top-end software-programs. The flying-by-frugal gear that anyone can afford - and succeed - in capturing beautiful images that are more than capable of causing jaws to drop! There are, simply put, no rules and room for any & all folks! That's my 2¢ - and I'm stickin' to it! Dave
  23. Dave In Vermont
    I would say that video was successful in refuting the notion that video-cams are not useful for real-time viewing. Very nicely done! And thank you for the tour - Dave
  24. Dave In Vermont
    Thank you for the breakdown on this scope, MTK. Now I see what's going on here - he's de-focused into a 'black-hole' image of the planet! Please pass me the Homer-Simpson Award! Dave
  25. Dave In Vermont
    No - this is not normal by any stretch. Having spikes on a star from the spider (as it's called due to it's 3 or 4 arms) is normal, but it shouldn't be blocking-out the object you're looking at. Frankly - I'm stumped. I'd look into the collimation of the optics. 'Collimate' is the word meaning to align in optics. The primary-mirror and the secondary-mirror should aligned center-to-center. I'll link you to one of the best guides to this by Astro_Baby, who is a member here: http://www.astro-baby.com/collimation/astro%20babys%20collimation%20guide.htm Have a good read, Dave
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