... STAR FIELDS Newsletter of the Amateur Telescope Makers of Boston Including the Bond Astronomical Club Established in 1934 In the Interest of Telescope Making & Using Vol. ... 10 November 2002 This Month's Meeting.. ... Bob Collara gave a short summary of the mirror making activities at the clubhouse. ... GARY WESTON is making a 6" F5.5 Mirror. He is a new member from Gardner MA and works closer to the clubhouse than he lives so he comes up to work on his mirror directly from work. ...
... Bad Astronomy . Misconceptions . ... Bitesize Astronomy . ... The Nine Planets . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... As I say on the page about orbits , at a year away Planet X must be roughly as far as Saturn (and therefore closer as you read this page). The distance from Earth in May 2002 should be about 900 million kilometers. ... Planet X, if it orbits on an ellipse, can get as far as 235 AU away, 7 times the distance of Pluto. ... 2008 Phil Plait. ...
... GRIN lenses for telecommunication optics applications ? GTC (gradient telecom) lenses. ... GTC lenses are used in different fiber-optic devices: collimators, couplers, isolators and WDM etc . ... 2.Diameter . GTC lenses diameters are 1.0 mm, 1.8 mm, 3.0 mm and 4.0mm. ... 1.0 mm -3.0 mm diam GTC lenses are supplied in 0.22P, 0.23P, 0.25P, 0.27P and 0.29P length. 4.0 mm diam GTC lenses are supplied in 0.11P length. ... GTC . ... 3 scratches with 5mkm max width and 200mkm max length are allowed . ...
... Никогда не забуду своих первых ночей наблюдений с этим инструментом: взгляду открывались многочисленные туманности и галактики, невидимые в школьный рефрактор. ... Раз уж я упомянул про наблюдения звезды днем, не могу не рассказать о других своих дневных наблюдениях. ... Самым замечательным дневным событием было соединение Венеры и Юпитера 17 мая 2000 г., когда утренняя звезда прошла всего лишь в 40? севернее Юпитера и в 60 от Солнца. ... Виньяминов И.В., 394087, Воронеж, ул. Мичурина, д. 10 . ...
ABSTRACTS 10-th International Gamow Summer School "Astronomy and beyond: Astrophysics, Cosmology and Gravitation, Cosmomicrophysics, Radio-astronomy and Astrobiology" (Ukraine, Odessa, Chernomorka, 23-28 August, 2010) MEMORIAL SESSION SERGEY ALEKSANDROVICH SNEGOV (1910-1994) OUSTANDING PHYSICIST, COSMOLOGIST, ASTRONOMER AND WRITER VISIONARY TO A 100-ANNIVERSARY FROM BIRTHDAY Pahomov A.G. PFUM, Moscow It is possible to judge a condition of an astronomical science on literary works of time. ...
... Maps of six sources (0420+022, 0420-014, 1308+326, 1345+125, 1803+784, and DA 193) obtained with milliarcsecond resolution are presented and discussed, together with their broadband (122 GHz) spectra obtained on the RATAN600 radio telescope at epochs close to those of the VLBI observations. ... The image (Fig. 5) shows that the source structure at 18 cm is compact, consisting of a VLBI core and two jet components, with the outer component lying 5 mas (30 pc) to the northwest of the core ( = 54 ). ...