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glennbech

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Everything posted by glennbech

  1. DHL Tracking indicates that a very unlikely event of good Astro-weather and arrival of this scope is about to happen. I'll post pictures and first light! I have a Polarex Model 133 (60/700), see http://www.unitronhistory.com/models/polarex/polarex-model-133-n/ incoming soon as well (stuck in customs), it will be fun to see how these scopes compare to my Willian Optics and Zeiss for moon/double stars :-)
  2. This is my impression is also, after scanning lots and lots of posts over at CN :-)
  3. As an example.this is no 12 Euro Unitron/Polarex (https://www.ebay-kleinanzeigen.de/s-anzeige/weltblick-teleskop/415729736-187-1140)
  4. The marking identifies the producer of the scope (Towa is Circle T, N.S is Nihon Seiko etc)? As far as I understand the Polarex and Unitron scopes are sought after, exactly because they were produced by Nihon Seiko. WeltBlick scopes, produced by other producers would not be so collectible?
  5. Since noise is both "positive" and "negative" it cancels itself out when you have many frames.
  6. According to my understanding, Unitron and Polarex are both produced by Nihon Seiko. But I am not sure all Weltblick scopes are produced by Nihon Seiko. From Company 7 "In Germany these were marketed from the early 1960’s through the Spring of 1985 as UNITRON by Manfred Wachter Präzisionsmechanik und Optik of Bodelshausen at Tübingen (near Stuttgart), whose well illustrated literature remains a good source of information about these products even today. In the mid 1980’s these were distributed by Neckermann AG based in Frankfurt, Germany that sold these bearing the trade name WELTBLICK (World View)." If you find a Welt Blick after 1980 it's a "Unitron" (N.S), earlier Welt Blick scopes may not be "Unitrons" (or N.S produced). Correct me if I am wrong here.
  7. I second that! Some years back, on this forum I believe, I saw a guy start out with a HEQ6 (Now NEQ6 I think) and a goog quality 80mm something refractor. It looked a bit silly with the small scope on the huge mount, but makes a lot of sense for imaging.
  8. In relation to my recent Polarex classic telescope purchase, I educated myself on the Unitron, Polarex and Weltblick brands. That's how I noticed a neat little scope at the german https://www.ebay-kleinanzeigen.de/s-anzeige/teleskop-weltblick-fernrohr/268630165-242-4818 This is a pre-Unitron/Polarex Weltblick and not produced by Nihon Seiko. It has a "circke K" mark, that I am still digging into. It seems that the Welt Blick brand was put on a whole range of Japanese telescopes all the way back to the 60s (Maybe even 50s). As far as I know, the scope I have purchased is mid / late 60s. The scope invoked that "must have it" feeling, and I probably should have saved my 100 Euros for my 16" Dob savings project. But now I can't wait for clear skies and a "double star split shootout fest" with my Carl Zeiss, Polarex (not arrived yet, not worried yet...) and this "Circle K" enigma. The photos taken in a garden are not of the scope I purchased but from another source.
  9. Hi, I am new to observation and have a few questions. 1) What kind of notes do you do on sky quality (stability and darkness) on observation nights? If you keep track of it at all that is. I have seen som reports that start with a classification of seeing for example. How are they done? On my last observation session, I did an experiment where I found M45 and picked the faintest star I could possibly see. At home, I used Aladin, a star atlas program to locate it. It was this little guy here. It is in the string of stars that run south from the center. It has a visual magnitude of 9.6 - maybe not very impressive as the faintest observable star? t 2) On my last session, the sky was a bit washed out with a blue hue, probably because of the 100% relative humidity and light scatter from nearby habitation and an airport. How much does dark adaptation really count in such a scenario. I failed to detect the Leo Triplet for example, but I felt that the task was more like telling something gray and fuzzy from something slightly darker and gray/blue :-)
  10. I'm thinking that a Large, second hand Dobsonian might be a good option for Linda and that she keeps it outside, on the wooden terrace on a platform of some sort permanently (to get it up from the ground) well covered up. In my experience, steel and Iron parts will rust a bit the mechanical parts and optics should be fine? Another option for her might be to have a tripod and mount (SkyTee-2?) permanently set up, and a 8"Newtonian, Celestron C8 or something like that inside or in a shed. What do you think of that? Until recently and over many years, I have kept my tripod and HEQ5 Pro Synscan permanently outside on a wooden terrace with a BBQ cover from Weber on it. I have a shed, non-insulated, wall-to-wall with my house. I have stored both my William optics 90 frac, a 150mm Mak and an 8" Newtonian there. It is dry, but the temperature has been down to -20c (-4f) and below. This has worked very well for me, and the mount has performed very well for Astro photography.
  11. Another question related to the original post: how would a dobsonian react to a constant outside environment? If you somehow get it up from the ground a bit on a platform and cover it with well? That would help her a lot. I "mistreated" my heq5 pro mount like that for years, and when I sold it recently it still tracked with its usual accuracy. it was either rust or dust so to speak. After I had it permanently outside I started using a lot more.
  12. This is a very interesting thread! I am in the same situation. I have a good quality 90mm refractor. Now I am thinking about what my next scope will be. The obvious choice would be a Dobsonian. The 10" non-goto is very reasonably priced where I live. Half the price of the 12". But. Then I read observation reports from people who have 10 and 12 inch scopes and bad skies, and how they see very little detail. I suddenly think back to a ski trip in 2009 with my Megrez 90 and Porta mount in my backpack. Two of the three Leo triplet galaxies were clearly visible with direct vision, and I could tease out the third with minimal effort. I can also travel to pretty good skies, 30 minutes by car. I can't decide on 1) Brute force my mediocre skies at home with a pseudo-permanent 16". 2) 10" Dobsonian that I can travel with by car. I don't think the 12 inch is easy to travel with... 3) Break my bank account on a larger refractor and travel to darker skies. I am also an outdoor person, so I want to take overnight hikes with my gear to high evelation sites. The problem, as I see it, with large Dobsonians, is that they don't cure bad skies. They also do not travel well. That is a very bad combination! A light Dobsonian could be a nice travel companion by car. They still require cool-down and do not like hikes. While I am in a state of confusion, I have landed on alternative 3, but with my current gear.
  13. This is a very nice list! What scope did you use for these observations? I receive a vintage Polarex 60/700mm in a few days, and are very eager to do a frac "shoot out" with my Zeiss, Polarex and Megrez 90. This sounds like a great list to get me started, at least, the easier splits! I have a great north/east/west view from my house. A lot of inspiration on the list
  14. I currently only own fracs, so here is my Carl Zeiss Telemator (Telementor II on a EQ motor drive) . William optics Megrez 90 on the Porta mount in the background
  15. I bought this as a "cost efficient" entry into the world of wide field viewing and I have been pleased with it so far. I even use it to star hop, since it gives an 18x magnification with my Megrez 90. So far, under my regular skies, I have been happy with it. Two nights ago I visited a "darkish" site I use, had a view of the of the double cluster, and immediately went "oh no!!". With the rich field of stars, the relatively small "flat" area of the eyepiece became very evident. What kind of price range are we talking about for eyepieces with 72+ degrees and "sharp all the way out" images?
  16. Oh! Thanks a lot for that link! I did some digging and found a reference to this model, called NS 133, in the 70s catalog. It was not for sale, but in the accessories section, the compatibility matrix shows that certain Eyepieces work with the NS 133. I also found an eBay listing for a 700mm/60mm claiming to be a scope from 1968. (http://goo.gl/sd2PnU). I have no idea how long these were produced, or when this specific scope is from, but at least, I think I have placed the model in time.
  17. Ahh.. I found the revolver. They're sold on polarex spotter scopes. Probably a bit mix and match here Let's hope I get it in one piece !
  18. That's an awesome observation! The question is if you would have seen the same detail in the 4" on that night?
  19. Sorry for bumping my own thread here, but I just got some new pictures from the seller. Has anyone seen this kind of EP turret before? It does not seem to be the original "UltraHex". Looks like I will be expanding my 0.96" eyepiece set with this purchase! I have 25mm, 10mm and a 5mm Zeiss Orthos. I see 25, 12.5, 18 and 8 millimeters in the pcitures...
  20. Maybe one of your weather forecasters forecast humidity? Mine does (www.yr.no)
  21. I put my three Kids and better half to bed at 9 last night and packed the car. I have access to a small cabin deep in the Norwegian forest that has a decent sky. Far from perfect, but a whole lot better than home, and only 30 minutes by car. I brought my grab-and-go Megrez 90mm on a Vixen Portal II for some deep sky observation and the Carl Zeiss Telementor II scope mostly for fun. I am a very novice observer, but I include Jupiter in most of my observation sessions and have come to a conclusion that is probably entirely wrong, and I will let you guys correct it. It seems to me that it doesn't really matter what kind of scope you use for Jupiter. The quality of the view will mostly / almost / all of the time be limited by seeing. I have watched the planet in a Skymax 150 mak, Megrez 90mm doublet apo, 8" reflector and now my Carl Zeiss scope. I have not seen the planet give away anything other than two equatorial bands. Last night was actually my best ever observation of Jupiter. It was through the Zeiss Telementor and I could clearly make out structure and textre in the bands. The Zeiss 5mm Ortho Eyepiece gives a magnification of x168, pushing the limits of the 2.5", but provided by far the best view. My telementor has no diagonal, and I mount it with tripod legs at maximum length. This gives a comfortable viewing position. I can just stand casually and relax at the eyepiece when Jupiter has gained some height. But back to my point. Would the view have been better if I looked through an 8" reflector or 6" mak at that point in time? Or is the planet deciding for itself what details to receive?
  22. Thanks for sharing. Do you have a schedule for the GRS somewhere that I can borrow? :-)
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