... 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 ). ...
Journal of the Amateur Astronomers Association of New York May 2008 Volume 56 Number 5, ISSN 0146-7662 EYEPIECE -priority Hubble Space Telescope. ... Not one to rest on his laurels, M a t h er d escr ib ed his work as senior project scientist and chair of the Science Working Group of the upcoming James Webb Nobel continued on page 5 REMINDER--The AAA's annual meeting is May 21. ... May 5 New Moon at 8:18 a.m.; Moon at perigee, 222,309 miles from Earth, 1:18 p.m.; Eta Aquarid meteor shower peaks. ...
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