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knightware2

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About knightware2

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    Nebula

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    North Carolina, USA
  1. 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
  2. Noctilucent clouds and a comet make a wonderful composition. Thanks for sharing! - Phyllis
  3. Wow! Both shots are stunning. Getting it above the London skyline is very impressive! Thanks for sharing. - Phyllis
  4. 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 binoculars. Viewed Comet Hyakutake through a friend's Fujinons and was hooked. Still use these on a parallelogram mount. Sold 20" Dob to a friend. Very sad to part with it. 14.5" f/4.5 Dob - Built by Teeter's Telescopes (USA). Wonderful telescope customized for me by Rob Teeter; still use this one. Leitz 7x50 binoculars - Inherited these and restored them. This 1945 model has excellent optics; still use these. Just think, if the clouds ever clear, I could use some of these! - Phyllis
  5. 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. - Phyllis
  6. 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
  7. 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
  8. 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.
  9. 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
  10. 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, compact listing of the catalogs, but 'Observing and Cataloguing Nebulae and Star Clusters' by Dr. Wolfgang Steinicke, published in 2010, is truly definitive. It explores the history of the catalogs and include pictures of a few (but not all) objects. This is a hardback book that is really expensive in the US. Maybe it is more reasonable in the UK. The internet is probably the best resource for pictures of all the objects although I don't know of a site that has photos for all objects. You can certainly query the online DSS websites for photos, but they aren't organized by object number. I wish you luck with this endeavour! - Phyllis
  11. 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 area of interest. In practice, measuring at the beginning of an observing session after optics have stabilized thermally is perhaps more practical. As others have pointed out, SQM measures sky darkness. There are other metrics for sky darkness, but SQM is the objective one. Lastly, one might measure sky transparency. The only objective measurements I know of for transparency are Particulate Matter (PM2.5), and Aerosol Optical Depth (see http://www.gmes-atmosphere.eu/d/services/gac/nrt/nrt_opticaldepth/)
  12. 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!
  13. 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.
  14. I have a little different view of the magazines (I'm in USA). I've subscribed for years to Astronomy and Sky & Telescope. I stopped reading Astronomy for several years, but resumed recently. I also read Sky At Night monthly, and I've read a few issues of Sky News (Canada) and Astronomy Now. All the mags have a different feel to them, and they obviously have different columnists and contributors. To me, we are very fortunate to have such a wide selection. I think readers should subscribe to their favorite(s) and purchase some of the others occasionally just to see how they fit in to their own interests. My own thoughts on the mags: I've read S&T for many years and I'm very concerned about 3 editors having left over the last 3 months. I hope the new owners take care of business. Astronomy has improved greatly in the past few years. I have a little trouble with the small font used for print, but I really enjoy reading it monthly. Sky At Night has become a definite monthly read. I think the artwork is excellent, and the coverage of current science is more readable than the similar sections of Astronomy and S&T. I have a friend that is a theoretical physicist who votes Sky At Night his favorite, and he reads everything mentioned in this thread. I think the take away is to try as many as you can, and subscribe to your favorite(s). Enjoy your astronomy reading whatever it may be!
  15. I really am sorry you guys are having to wait so long. I've had mine for a couple weeks now, and I am truly enjoying it. I've tried many eyepieces with the Quark in a 80mm f/4.8 Brandon refractor, and I've found a (borrowed) TeleVue 32mm Plossl gives the best image. It gives a full-disk view that is extremely sharp and contrasty. I tried to buy the 32 off of the owner to no avail. Can you guess what's on my Christmas list already? - Phyllis
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