Telescopes Neil English. A Work Dedicated to Brian Carter. The cure for unobtanium is a good dose of speculum Here I shall provide an in depth evaluation of the Sky. Watcher Skyliner 2. P an 8 inch 2. Newtonian reflector. Friday, January 3. The telescope was ordered from Rother Valley Optics, UK. The complete telescope was purchased for 2. I chose this telescope owing to its almost universal acclaim by amateur astronomers of all levels of experience, from novices through to seasoned veterans. I was interested in getting something larger and more powerful than the most excellent 6 1. Dedicated to Rob Nurse. Introduction. One of the most egregious myths promulgated by contemporary telescope forum culture is that one has to splash out large sums of. Hawthorne Stereo of Seattle Washington offers quality new and used hifi systems and accessories. We offer a broad selection of products from ATC, Cambridge Audio. Many literary sources discussing Newtonian optics recommended as slow a mirror as one could get away with. As a purely visual observer, I was pleased to hear that Sky. Watcher were offering their 8 inch Dob at a respectable f6 relative aperture a good compromise between portability, functionality and performance with a modest eyepiece collection. One Piece 550 English Sub' title='One Piece 550 English Sub' />An inexpensive Skywatcher laser collimator was purchased at the same time. Monday, February 2 The telescope arrives in two boxes one containing the telescope and various accessories and the other containing the flat packed Dobsonian base. The telescope was presented in excellent condition, as were the accessories, but it was quickly discovered that the lazy Suzan rocker box supplied with the telescope was actually for the smaller 6 inch model. Oh dear never mind A quick phone call to the retailer was enough to arrange for the delivery of the correct size base and the collection of the 6 inch base. A set of tube rings and a dovetail plate were found for the telescope and I was able to attach the instrument to my heavy duty Sky. Tee Alt Azimuth mount. Turning to Jupiter, it was easy to see the optics were quite a bit out of alignment but I was taken at the sheer brightness of the planetary image. Star testing confirmed that the optics were mis collimated. The simple but sturdy focuser on the telescope can accommodate both 1. The package came supplied with an 8x. Good but sturdy the focusing unit on the Skyliner 2. P. The innards of the optical tube were painted matt black and the parabolic primary mirror looked immaculate with no sleeks or flecks of dustpaint. Aprender A Tocar Salsa En Piano Pdf on this page. Very nice indeedTwo eyepieces were supplied with the instrument a wide field 2. The inner sanctum of the Sky. Watcher Newtonian. All is well presented. Tuesday, February 3 The laser collimator arrived this morning and I quickly got to work aligning the optics. This device makes very light work out of precisely aligning the optical components. After placing the device firmly in the focuser, the secondary mirror was precisely aligned with the central spot of the primary and  then the primary was adjusted slightly to complete the collimation. Noregistration upload of files up to 250MB. Not available in some countries. A Work Dedicated to Brian Carter. The cure for unobtanium is a good dose of speculum Here I shall provide an indepth evaluation of the SkyWatcher Skyliner 200P an. Ascariasis is a disease caused by the parasitic roundworm Ascaris lumbricoides. Infections have no symptoms in more than 85 of cases, especially if the number of. This only took a few minutes to do but should make a huge difference to the images garnered by the telescope. An inexpensive laser collimator makes aligning the optical train childs play. Auto Hustle Game. Seeing fair to goodAnt II III. With the telescope fully acclimated in 6. C temperatures, I conducted a quick star test using my trusty 2. Baader Hyperion zoom to confirm that the optics were properly aligned. The full Moon was easily framed with lots of room to spare at the 2. One Piece 550 English Sub' title='One Piece 550 English Sub' />Aiming at Polaris, I was very pleased indeed with the beautiful concentric diffraction rings either side of best focus at 1. No astigmatism was noted with no signs of significant zones. This is a good, smooth mirror by most anyones standards. In focus Polaris A was pinpoint sharp with delicate diffraction spikes consonant with a good Newtonian image. Its faint companion was easily picked off wide away. I know I know its a Dob. I couldnt wait to test it. Comparing the views of Jupiter with my 1. Maksutov Cassegrain at 1. I was very impressed how well the 8 inch Newtonian was performing. At a glance I could see finer detail than in the smaller aperture Maksutov, although the sky background in the latter was considerably darker. This could be attributed to stray light from off axis moonlight though and will require further investigation. I could also see the faint impression of the slender spider vanes superimposed on the in focus image, though after a few seconds, one could effectively ignore them and get on with enjoying the images. The brightness of the planet in the Newtonian at 1. Turning the telescope on Iota Cassiopeiae, the instrument was able to cleanly resolve the three components fairly easily. Almach, now fairly low in the northwestern sky was beautifully rendered, the golden and blue colours of the components coming through easily. The faint diffraction spikes around the stars were quite fetching to my eye. I dont know what to make of them as yet. All in all, an impressive first light for the econo Dob. Thursday, February 5 The replacement base arrived safely today and the 6 inch base collected. Assembly took about a half an hour. All tools were supplied with the package. The Skyliner 2. 00. P Dobsonian telescope. Seeing II, temperature 0. C, clear, tranquil sky after dusk. Telescope kept outside all afternoon with optics covered. Little chance of dew as the air is still very cold and dry. Theta Aurigae companion easily picked off from the bright primary at 1. Some low altitude cloud rolled into the valley for much of the evening while I was teaching. The telescope remained on duty throughout. Also fielded my 1. Maksutov acclimated for comparison. Only a few targets visible at any one time. Seeing improved and now excellent, as judged on a very near perfect rendition  of Castor A and B through the Maksutov at 3. I turned the instruments to Jupiter and studied the images delivered. The winner without a shadow of a doubt the 8 inch f6 Newtonian. Both served up very fine views but the extra resolution and light gathering power of the Newtonian in these braw conditions put it comfortably ahead. An incredible amount of ultra fine fine detail could be made out all across the planet but my eye was drawn to the high latitudes of the southern hemisphere, where a few curious white spots and a riot of linear structures quite literally jumped out at me Where the smaller Maksutov suggested, the larger Newtonian plainly revealed. The above was based on unfiltered observations, but I felt the icing on the cake was delivered with the addition of Al Naglers latest technical innovation the Televue Bandmate BPL. It diminishes the glare around the planet, darkens the background sky and brings out all kinds of reds, oranges, yellows and whites within its enormous atmosphere. To my eye, the image at 1. I didnt try any higher powers as there was no need to do so. I would invite others to pull out their GSOSynta 8 inch Dobs, spend a few minutes lining up its optics, letting it fully acclimate I didnt use a fan with its cap on and comparing its views with a more revered scope of similar aperture. To the rich man I speak the man who has seen it all in the cold light of day. Maybe you could buy one in for a while at leastNothing to lose, right But be prepared to be shocked Sky. Watcher Skyliner 2. Creating A Windows Printer Driver. P planet killer extraordinaire Sic transit gloria mundi Friday, February 6 I am still somewhat in awe of what I saw last night and no one can take that away from me. It only takes one good night to reveal the truth about any telescope, whatever preconceptions one may have had about it. Would I have been better off with a larger mirror a 1. I believe that the difficulty in producing a fine mirror scales with the square of aperture.