... 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...

... Piotrovich Main Astronomical Observatory, Pulkovo, St. Petersburg, Russia Received May 24, 2006; in final form, July 7, 2006 Abstract--We have used two astrometric methods developed at the Main Astronomical Observatory of the Russian Academy of Sciences--the method of apparent-motion parameters (AMP) and a direct geometrical method (DGM)--to derive the orbit of the star S2 around the Galactic center, and thereby the mass of the supermassive black hole at the Galactic center. ... Relative positions. ...

... Тhis new concept touches our simple lives, yet for those intrigued by the natural sciences, especially experts deeply engaged in the 'eternal' questions of general geology and astronomy, it is all the more fascinating. The problems to be faced by any theory for the formation of the Solar System . Any theory has to account for certain rather tricky facts about the Solar System. These are in addition to the obvious facts that the Sun is at the centre with the planets in orbit around it. ...

Welcome to K -corrections calculator, simple service allowing one to determine K -corrections of a galaxy, given its redshift and one or more colours. ... K -correction in choose filter.. ... Redshift . Colour choose colour.. Colour value . Calculator . ... calculate spectral energy distributions , K-corrections calculator , GALEX FUV NUV , UKIDSS YJHK , K-corrections of galaxies , spectral based k-corrections , SDSS filter set K-corrections , K correction code IDL , kcorrect IDL C , . ...

... LUMAM . ... ABOUT LOMO . ... MICROSCOPES . ... Home Products Microscopes Lumam . ... LUMAM™ microscopes include high-performance fluorescence filters specially developed by LOMO for fluorescence microscopy. ... It allows the attachment of all modules and components, such as the mechanical stage, condensers, objectives, filters, fluorescence cubes, mercury epi-illuminator and observation heads. ... The LUMAM Mercury Epi-Illumination is the standard light source system for research fluorescence. ...

... 4, Nњ27, 1965. RONCHI TEST A N D TRANSVERSAL ABERRATION ])(11/iel 1\1a lacara SPHERICAL SI':\L-\RIO La prucha dc Ronchi cs sumameute Ъtil para dctcrminar la (:alidad de sistemas уpticos que tendrнan ahcrra<:Нуn dc esfericidad transvcrsal. aЪu eu el caso de cstar perfectamente construidos. ... EXTENDED I ї Copyright 1965: Observatorio Astronуmico Nacional, Universidad Nacional Autуnoma de Mйxico SOURCE ~ ~ '\ RONCHI RULING - t t PLATE tCORRECTING SPHERICAL MI RROR ]'igure 2.- ...

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. ...

back to "Astrology" . ... Russia under the Sign of Jackass . I'll venture to outspeak a truism: there is nowhere such a country except our Russia, where people zig and zag from one extremity to another. ... Lummy, where are the brain-convolutions of millions of people, who have been educated in secondary school? ... No, it is quite sufficient to be an average man with average intellect and average (secondary school) education. ... Another analogous question. ... and an average education . ...

... See you all on February 8th! ... David Lechter, Outreach Chair 2 February 2011 Amateur Astronomers Association of Princeton Mars Rovers Celebrate 7th Anniversary on the Red Planet NASA's twin Mars rovers Spirit and Opportunity surely rank as one of the greatest triumphs in the history of space exploration. ... 4 February 2011 Amateur Astronomers Association of Princeton Opportunity is driving to different vantage points around the steep walled crater and snapping a series of gorgeous Martian vistas....

... The software enables to browse HITRAN-86 or 96 databases. It enables input first 7 atmospheric gases. ... calculate atmospheric transmittance on any pressure level, . calculate instrument transmission functions through the atmosphere, . ... The software is supplied by standard atmospheric profiles, extracted from FASCODE_3.0 FORTRAN codes (dowloaded from PL/GP), and by instrument response function for IR channels of NOAA 14 satellite (both AVHRR and HIRS, downloaded from NOAA/NESDIS). ...

Huge gratitude to anonymous researchers of our site. It would be easier to send the letter with any questions. Back

... This is Michael in Ireland . You asked me question what would I see if I look out my window. Well, at this time I am watching the birds eating my peanuts that I put on my bird house. Its beautiful to watch them. ... Also I'm watching my dog OJ, he is playing around with a bone I got from my local Butcher. ... I also see in the field next to my lawn many sheep. I can remember 2 weeks ago there was up 80 sheep in field and now there is 80 sheep and up 200 baby lambs . ...

... Our scientific interest is an accuracy of asteroid CCD observations obtained by amateurs and professional astronomers all over in the World. ... These data help us to analyse an accuracy of real CCD positions in the MPC Database. ... Do you test your observations of the small Solar System bodies permanently before sending them to the International Minor Planets' Center? ... Do you know a real accuracy of your positional CCD-observations in comparison with the other observatories' one ? ...

... 337, 275­292 (2002) The correlation of line strength with luminosity and redshift from composite quasi-stellar object spectra S. M. Croom,1 K. Rhook,1 E. A. Corbett,1 B. J. Boyle,1 H. Netzer,2 N. S. Loaring,3 L ... We measure highly significant Baldwin effects for most broad emission lines (C IV 1549, C III] 1909, Mg II 2798, H ,H ) and show that they are predominantly caused by correlations with luminosity, not redshift. ... The correlations of log W with log(1 + z ) for each line. ...

... 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 ). ...

Тема : Генезис пояса Койпера, Эджворта-Койпера (Edgeworth-Kuiper belt) .. Показать сообщение отдельно . ... Крупный (? = 995 + 80 км) объект Пояса Койпера, Эджвурта - Койпера ( Edgeworth-Kuiper belt / Kuiper Belt Object, KBO) из внешней части рассеянного диска (extended scattered disc objects / E-SDO) самостоятельная (distant detached objects / DDO) транснептуновая карликовая (dwarf) планета (90377) Sedna (2003 VB12) - 16 ноября 2013 года в противостоянии, расстояние 85.454 а.е. от Солнца .. ...

... 23 Algorithm fo r evalua tion of two burn maneuv ers using linearity Input information: ( t t E1 , rEI , v t1L , t E2 2L ( ) EI )T )T ­ ­ ­ ­ the time and the state vector of initial orbit for this time ; interval of possible thrusts for transition from initial orbit to the transfer on e; the time and the state vector of the target orbit for this time ; ... We cal culate the state vector for the initial orbit for the time t1a and the target one ­ for the time t2 a . ...

... Comments, Opinions Publications Dnepr Program . Dnepr launch record 17 August 2011. Cluster Launch of Dnepr LV 22 August 2013 KOMPSAT-5 Launch 21 November 2013. Dnepr Cluster Mission 2013 19 June 2014. Dnepr Cluster Mission 2014 6 November 2014. ... Mission profile SHM configuration Reliability Dnepr LV Performance Launch Sites . Baikonur Cosmodrome Yasny launch base Downloads . ... Dnepr LV Performance Characteristics for Circular Orbits (kg) . ... 600 . ... Dnepr LV Performance . ...

НОВОСТИ ФЕДЕРАЦИЯ ЭНЦИКЛОПЕДИЯ ИСТОРИЯ СТАНЦИЯ МИР ENGLISH . ... Мои публикации . ... About a year has passed since I wrote the article 'Gagarin was still the first' in Orbit no 51, trying to systematize and analyze rumours and gossip about flights into space which allegedly happened during the Soviet era but have been ignored in official history. ... One more rumoured Soviet 'manned flight to the Moon' was delivery of 'Lunokhod-1' - to the Moon's surface. ... Под эгидой Федерации космонавтики России. ...

... Space flight . Crew training . ... Space camp . ... acquiring practical habits and skills of performing all the flight operations envisaged for a flight participant; . maintaining and honing professionally required qualities and skills for a successful activity in conditions of effect of adverse factors of a space flight, as well . ... preparing for the activity outside the spacecraft; . ... preparing for professional activity in conditions of effect of the space flight factors; . ...