... 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...

The Stone Age Observatory. It is well known that a lot of ancient constructions are oriented according to the cardinal points but not long ago scientists turned upon archeological monuments. ... The ancient monuments studied by archeoastronomy had been used for observing the sun and the moon. ... They are called megalits (from Greek "megas" - "great"; "litos" - "stone"). ... The Great Stonehang. ... Orby called it a Heel Stone because he had seen a small hole in it looked like a heel trace. ...

Malkov O.Yu., Kovaleva D.A., Pozanenko A.S. "Astronomical big data: surveys, archives, databases" 2016, in Forty fifth international student scientific conference "Physics of Space", eds. P.E. Zakharova et al., ... Kovaleva D.A., Malkov O.Yu. ... Malkov O.Yu., ... (altogether 12 co-authors) "Conceptualization of branches of astronomy as a data intensive science" 2013, in Abstracts All-Russian Conference 2013, St-Petersbourg, Sep 2013, ISBN 978-5-85263-111-4 (in Russian), 231-232. ...

... Home Articles Why is the Moon so high (or so Low)? ... Clear Sky Chart . This Month's Sky . ... Beyond New York City . ... Why is the Moon so high (or so Low)? ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . Observing Resources for Amateur Astronomers - Part 2: Intermediate Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

... I would like to add my voice to those who are mourning to loss of Maxim Tarasenko. ... Maxim was born in Protva, in the Kaluga Region south of Moscow on 20 June 1962. ... This was just one of many international speaking engagements of his. ... The list of papers and international places is too long to go into at this point. ... My first trip to Moscow was in 1995, and Maxim kindly made arrangements for me for transportation and access to a number of space program related facilities in the Moscow...

. Государственная корпорация РОСКОСМОС . ФГУП ЦНИИМАШ . Для просмотра конфигурации большего размера необходим Java software: Java Runtime Environment . вверх .

... License agreement. All copyrights to Izmccd are exclusively owned by the author- Igor Izmailov. ... THE AUTHOR WILL NOT BE LIABLE FOR DATA LOSS, DAMAGES, LOSS OF PROFITS OR ANY OTHER KIND OF LOSS WHILE USING OR MISUSING THIS SOFTWARE. You may not use, copy, emulate, clone, rent, lease, sell, modify, decompile, disassemble, otherwise reverse engineer, or transfer the licensed program, or any subset of the licensed program, except as  provided for in this agreement.  ... Igor Izmailov. ...

... Free image alignment/stacking/processing Software . My lunar drawings . ... REAL TELESCOPES . ... Download Pocket-Aberrator . ... The Aberrator is freeware that generates star-testing images to show the effects of aberrations (distortions) influencing the quality of a telescopes performance. ... The idea to make a program like the Aberrator I got after studying many internet-sites on star-testing and often the effects of certain aberrations were only available as literal descriptions. ...

Please enter the lightcurve file name and period search parameters: . Lightcurve file: . ... Apply the Heliocentric correction and convert all dates to Terrestrial Time (TT)? ... Phase range for plots: -0.5 to 1.0 0.0 to 2.0 0.0 to 1.0 . ... Also, the Heliocentric correction cannot be applied to such lightcurves. ... Two period search methods are currently implemented. ... This period search service is also available at the mirror sites: Mirror 1 , Mirror 2 , Mirror 3 , Mirror 4 . ...