... RECOMMENDED VALUES OF PHYSICAL CONSTANTS AND CONVERSION FACTORS. ... This reference must be included when these constants are used in a context where their full accuracy is important. ... elementary charge (of proton) . ... gravitational constant . ... unified atomic mass constant . ... of electron . ... of proton . ... Planck constant . ... Rydberg constant, m 0 2 m e e 4 c 3 /8h 3 . ... fine structure constant, m 0 e 2 c/2h . ... Bohr radius, h 2 ( pm 0 c 2 m e e 2 ) . ... Bohr magneton, e h /2m e...

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• Корпус экспертов

Download Izmccd (~2.7 MB). ... for 1-5 bytes is number of a numbered minor planet, . ... Positions 1-80 file "mpcreportiz.txt" are similar to positions of file "mpcreport.txt". 83-95 – errors of unit weight, . ... If this tag is " 1 0 " , this record contains results of measurements of an image of object (approximation by "PSF"),  . ... 57-66 – error in X (pixels), for first star in a multicentric image, for subsequent it is error in (distance between first star in the image and this), . ...

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The ESA/ESO Astronomy Exercise Series 2 . The Distance to Messier 100 as Determined by Cepheid Variable Stars . ... The small variations in distance to the individual Cepheid variable stars in the Cloud are negligible compared with the much larger distance to the SMC. ... In this way Cepheid variable stars can be used as one of the 'standard candles' in the Universe that act either as distance indicators themselves or can be used to calibrate (or set the zero point for) other distance indicators. ...

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• ASP: Mercury Summer 2011
• ASP: Responsible Exploration
• ASP: Astronomy in the News

... Bad Astronomy . ... Bitesize Astronomy . ... Have you ever looked at pictures of Saturn's rings and noticed what look like gaps in the rings? ... Gian Domenico Cassini discovered a large gap in Saturn's rings in 1675. Later, an astronomer named Encke discovered a smaller gap near the edge of the rings. ... It was found long ago that an orbit in the Cassini Division, as the large gap is named, has a period almost exactly one-half that of one of Saturn's moons named Mimas. ... 2008 Phil Plait. ...

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• Phil Plait's Bad Astronomy: Bad TV
• Phil Plait's Bad Astronomy: Misconceptions: Astrology
• Phil Plait's Bad Astronomy: Misconceptions

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... Although their determination is based on the scattering process model, independent check-ups by rocket experiments have shown their correctness in experimental applications. ... Ionospheric data analysis, especially during strong disturbances, cannot be without some other kinds of diagnostic tools. ... The lack of data has always been a challange in this case. ...

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• East Siberian Center for the Earth's Ionosphere Research. Databases.

. Quantum clock (atomic clock) - the time measuring device containing quartz generator, controlled by the quantum frequency standard . Atoms play a role of pendulum. The frequency of atoms radiation while the atoms passing from one energy level to another regulates the quantum clock. This frequency is so stable (error 10^-11 - 10^-13) that quantum clocks allow to calculate the time more exactly, then astronomic methods. Back .

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• vtemperaturee
• kvantstandarte
• betweenstarse

Truebloodb,g, K. Zelayab Department of Astronomy, The Ohio State University, 140 West 18th Avenue, Columbus, OH 43221 USA; bNational Optical Astronomy Observatory, 950 North Cherry Street, Tucson AZ 85719 USA; cCerro Tololo Inter-American Observatory, Casilla 603, La Serena ... USA ABSTRACT We describe the design, construction and measured performance of the Kitt Peak Ohio State Multi-Object Spectrograph ( KOSMOS ) for the 4-m Mayall ... Optical layout for KOSMOS and COSMOS. ...

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• http://www.winer.org/Downloads/MPEC2008-W66.pdf
• Mark 2 Consciousness

... Space flight . Crew training . ... honing the skills of performing the tasks of operating the orbital (suborbital) spaceship in a normal autonomous flight and in case of occurrence of off-optimum situations; . ... preparing for conducting visual observations, photographing and video filming envisaged by the flight program; . ... preparing the astronaut's body to the effect of space flight factors, honing the skills of operating the spaceborne medical facilities, rendering self and mutual aid; . ...

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• Plan and technical specifications of the Baikonur cosmodrome, Russia's space
• Odyssey
• Tourist flight on the world best jet fighters. MiG-25 Foxbat high-altitude

... These Facts and Questions pages mainly tell you how to use the Aberrator-interface and also explain the nature of the aberrations. ... Airy disc: the brightest spot of light when you look at a star in focus. This disc can contain a maximum of 84% of all the light that arrives from a star (perfect refractor telescope). MCT : Maksutov-Cassegrain telescope. A closed-tube mirror-telescope with a secondary obstruction. Less common than the SCT, this telescope uses a corrector (real glass). ...

70. MASTER GLOBAL ROBOTIC TELESCOPES NET

71. http://www.armaghplanet.com/pdf/Administration/Planetarium-FOI-Guide%20_2_TM_FINAL.pdf

72. http://www.mccme.ru/dubna/2015/notes/simon-notes.pdf

73. Heracles

74. THE LABORATORY OF METEORITICS, VERNADSKY INSTITUTE, RAS

75. RSSI Homepage

76. Yasny launch base

77. Электронная библиотека астронома-любителя. RU.SPACE.NEWS - архив за 08 апреля

78. http://www.puldb.ru/nikolaev_2011/PUB_NIKOLAEV_2011/damian.pdf

79. 'Soyuz-TMA' integrated IDS and RS ISS integrated console of manual control loop

80. Karazin University