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About knightware2

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  1. It sounds like you had an excellent visit to WSP. I haven't been in several years but I also cherish my visits. Thank you for the photos and sketches - they are a lovely nice reminder of these beautiful objects as seen from the south Florida Keys. - Phyllis
  2. I hope the star test goes well. Once you have backed the clamps off so that they don't quite touch the mirror surface, you should shake the tube a little when pointed at the zenith so that the mirror settles in its cell. Then collimate. I usually do this, and after an hour or so of observing, check collimation again so that temperature changes can be addressed. My telescope if f/4.5 so collimation is important for good crisp images. Good luck! - Phyllis
  3. The comet's tail looks so much longer than I am seeing visually with binoculars or naked eye. My observing location is rather light polluted so maybe that's it. The tail appears golden though as you image shows. Thanks for sharing your image, - Phyllis
  4. Noctilucent clouds and a comet make a wonderful composition. Thanks for sharing! - Phyllis
  5. Wow! Both shots are stunning. Getting it above the London skyline is very impressive! Thanks for sharing. - Phyllis
  6. This thread brings back some happy memories. As I have thought about my own history, it seems I don't like getting rid of telescopes! C8 - To see Comet Halley and fulfill a childhood dream of having a telescope. 8" Homemade Dob - Fulfilling another childhood dream of grinding a mirror and building a telescope. Still use this one. Sold C8. Sad to see it go, but the 8" Dob has better optics. 20" f/5 Dob - Built by Tectron (USA) and eventually rebuilt by me. Excellent views but ultimately too heavy and required a ladder (which my knees did not like). Fujinon 16x70 bi
  7. Hi Captain, Very interesting experiment. I hope you can continue a bit longer before the summer time brightness interrupts. As regards the outlier readings... As I understand it, the meter continuously integrates data. The darker your sky, the longer it takes to integrate a reliable reading. Depending on how long you point the meter at the zenith, your first reading or so may definitely be statistically 'bad'. I hope that makes sense. Anyway, an average of multiple readings is a good idea, and outliers are a possibility. I hope you'll post here on your progress. - Phyl
  8. I was there both days, but I haven't attended in the past. Saturday was busier than Friday. The crowd grew noticeably when a talk was over. My stand stayed busy Saturday afternoon and intermittently on Friday and on Saturday morning. Some vendors I spoke to said that business was not good, but others were happy. One thing for sure - the gentlemen running the show are delightful to work with and really want the show to succeed. All in all, it was a very worthwhile experience even with the plane fare from America. - Phyllis
  9. Hi heliumstar, Full disclosure - I am a vendor - husband and I will be attending IAS from the US. Our discount will be a shade higher than 10%. Please introduce yourself if you come by our stand (#9). I always enjoy meeting fellow astronomers at these shows! - Phyllis
  10. Yes it does. It covers the entire sky, and is perfect for small telescopes and binoculars. You can read about the smaller version here: https://www.shopatsky.com/pocket-sky-atlas , and the larger version here: https://www.shopatsky.com/jumbo-pocket-sky-atlas Assuming that you can get either version, you should be happy with this depth of sky coverage until you either learn the sky well or need charts for a darker sky or large telescope. They are wonderful charts.
  11. Hi Buzzard - I'm also from NC (near Raleigh). Welcome to SGL - it's a very friendly bunch. I'm glad you've got a new scope to kindle your interest. Better yet that your daughter is interested too. Please show her Jupiter now, and Saturn as it reaches evening apparition in late summer. I still needle my kids to have a peek (they are grown). Feel free to visit the Raleigh Astronomy Club if you wish - raleighastro.org. Let us know who you are and I'll be sure to say hello if I'm present. - Phyllis
  12. I have a copy of 'NGC 2000.0' edited by Roger Sinnott, published 1988. While it lists all the NGC and IC objects, it doesn't contain pictures. The question earlier about the number of objects might seem confusing. The NGC catalog has 7840 objects, and the IC (a later supplement) has 5386. Together there are 13226. More recent work on these catalogs has produced a larger number of objects only because some of the original objects have multiple components identified. For example, 2 components have been identified for the galaxy NGC 67 leading to NGC 67A and NGC 67B. 'NGC 2000.0' is a nice, compa
  13. Chris, Measuring seeing is mostly a subjective matter for amateur astronomer, but as a previous poster mentioned, it can be done objectively using a CCD camera. There is a very thorough discussion of measuring atmospheric seeing here: http://www.handprint.com/ASTRO/seeing2.html I believe that the most commonly used (subjective) seeing metrics used by amateurs are: Antoniadi scalePickering scale (see excellent examples at http://www.damianpeach.com/pickering.htm)Double star separation methodSeeing can change according to the area of sky being observed, so the measurement should be made in the
  14. I remember sharing views of Comet Halley with my mother and grandfather (who saw it as a child). That is a very special memory, and I hope yours means as much!
  15. I should try Astronomy Now again soon. I met some of the staff at NEAF in New York and they were fine folks indeed. I've had the good fortune to meet staff from Sky At Night, Sky & Telescope and Astronomy. They are all terrific folks - energetic, knowledgeable and so easy to talk with. Attending trade shows allows one to meet these folks and that is one of the reasons I enjoy going. To the original poster - please pick up a copy of other magazines before changing your subscription. We are so fortunate to have so many fine publications, and each addresses different niches.
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