... A non-linear relationship is observed between the sky brightness on clear and overcast nights, with a change in behavior near the rural to urban landuse transition. ... The great variation in skyglow radiance observed from site-to-site and with changing meteorological conditions underlines the need for a long-term international monitoring program. he introduction of artificial light has caused an unprecedented disruption to the nighttime environment over large areas of the Earth. ... Data processing...

Statistics of sunspot activity . The sunspot indices . ... NGDC's observations . The solar regions . ... The average annual indices of sunspot activity . Visual indices of solar activity by National Geophysical Data Center . ... 0.06 . ...

MICROSCOPES . ... NIGHT VISION DEVICES . ... ABOUT LOMO . PRODUCTS . ... LOMO PLC and LOMO America, Inc. sell products only to authorized distributors. LOMO PLC and LOMO America Inc. will not honor the warranty for any product manufactured by LOMO PLC and/or LOMO America, Inc., purchased from a non-authorized source. Please contact LOMO PLC or LOMO America Inc. to obtain names and addresses of authorized distributors in your area. ... www.tactical-store.com - Lomo Night Vision Products . ...

Электронная библиотека астронома-любителя. ... библиотека . архив RSN . ... Ru.Space.News: . Апрель 1998 . ... This is only one of over 20 galaxy lenses now known. ... This, and other new results from the LASCO (Large Angle Spectrometric Coronagraph) instrument on board the European Space Agency/NASA spacecraft SOHO (Solar and Heliospheric Observatory), will be presented at the UK National Astronomy Meeting at the University of St Andrews by Dr Mark Lyons from the University of Birmingham. ...

Previous Editions of the M111: . ... New Website Feature - NSN "Request A Program" . ... Sunglasses For A Solar Observatory . ... On Line"! ... Back to top.. ... Our newer members quickly learn to use the big scope and those just learning astronomy learn quickly! ... If you're a member of the public at large and interested in having the Observatory provide you with an educational program, you can now easily request one by visiting the NASA NightSky Network site and simply enter it in. ... Programs . ...

... Wang, Y. M.; Ye, P. Z.; Wang, S.; Zhou, G. P.; Wang, J. X. A statistical study on the geoeffectiveness of Earth-directed coronal mass ejections from March 1997 to December 2000, // J. Geophys. Res. ... Gosling J. T. , The solar flare myth// J.Geophys.Res., ... Lindsay G.M., Luhmann J.G., Russell C.T., Gosling J.T. Relationship between coronal mass ejection speeds from coronagraph images and interplanetary characteristics of associated interplanetary coronal mass ejections// J.Geophys.Res. ...

Download Izmccd (~2.7 MB). ... If you want to calculate equatorial coordinates of object: . Click the " File " menu, and then click " Open " ; or press  on toolbar. Choose a file with image. ... Also see section " Viewing of image ". ... Before, if it is necessary, you must make an account dark current and flat field (See section " Preliminary processing of images ".) ... Measure the marked stars. ... Click the " Calculations " menu, and then click " Coordinates " or . ...

Neutron Monitors ] [ Solar Neutrons ] [ Muon Telescopes ] [ Base Potchefstroom University ] [ Magnetometers ] [ GPS systems ] [ Ionosphere ] [ Related Data ] [ Space Weather ] . ... All Cosmic Ray Stations + InterPlanetary Data: WorldNet . Alma-AtaB (Mt.Tien Shan) DataBase of Kazakhstan Spectrograph Alma-AtaB (Mt.Tien Shan) new . ... Nagoya Muon Telescope and DATA or mail . ... Belgrade Muon Telescopes and DATA or ">mail . ... Real-Time database for Cosmic Ray Anisotropy (DB10) . ...

... ISC Kosmotras . ... Dnepr launch record 17 August 2011. ... A Ministerial Committee (hereinafter the Committee) chaired by a member of the Russian Academy of Sciences Nikolay A. Anfimov has been set up by the state authorities of Russia to investigate the cause of the Dnepr LV mission failure. ... The conclusions made by the Committee were delivered to the State Committees of Russia and Kazakhstan established with the aim to investigate the Dnepr launch failure consequences. ... Mission profile . ...

Symbolic circuit-matrix processor and evaluator . ... This software is reliable over the range of benchmark circuit complexity (both *.CIR and *.MAT file). ... SYMBOL is a symbolic-algebra package which in contrast to REDUCE, MACSYMA, MAPLE, MATHEMATICA, MathLAB, MathCAD and other known multi-purpose systems is especially intended for analysis of any lumped, linear, time-invariant circuit. ... pure ASCII text . ... CIRSYM - SYMbolic CIRcuit processor used to format ASCII text file *.out for CALCSYM. ...

Crater Gassendi . ... I made this drawing was made on the 26th of november 2001. If you compare this one with the previous drawing of Gassendi (below) the differences are clear. ... This drawing was made on the 28th of september 2001. After nearly a full month without observations I had a one hour gap between the thicker clouds. ... This drawing was made on the 29th of august 2001. ... This drawing was made on the 27th of august 2001. ... This drawing was made on the 25th of august 2001. ...