Magnification (Power) And Using Eyepieces . ... To determine power in a telescope, divide the focal length of the telescope by the focal length of the eyepiece. By exchanging an eyepiece of one focal length for another, you can increase or decrease the power of the telescope. For example, a 25mm eyepiece used on a telescope with a 1000mm focal length would yield a power of 40x (1000 / 25 = 40) and a 10mm eyepiece used on the same telescope would yield a power of 100x (1000 / 10 = 100). ...

Еще в разделе: (Показать все результаты (>292) - www.astronomy.net/ )

• Astronomy Terms - To Help You Study The Universe - an Astronomy Net Article
• Observations Of Mars - an Astronomy Net Observation_reports Forum Message

... The Science Operation Department is composed of Astronomers, Telescope Instruments Operators(TIOs) and Data Handling Administrators(DHAs). ... Astronomers have proposed several methods to quantitatively measure the amount of turbulence above the telescope, which the most common ones is Differential Image Motion Monitor (DIMM). In optical testing, the Hartmann test is the common method to test the quality of optical components. ... Hartmann mask consists of 48 lenses. ...

Еще в разделе: (Показать все результаты (>24) - site2010.sai.msu.ru/ )

To appear in "Fourth Workshop on Robotic Autonomous Observatories (2015)"RevMexAA(SC) METEOR OBSERVATIONS WITH MINI-MEGATORTORA WIDE-FIELD MONITORING SYSTEM S. Karpov, 1, 3 N. Orekhova2 G. Beskin, 1, 3 A. Biryukov3,4 S. Bondar,2 E. Ivanov,2 E. Katkova,2 A. Perkov, and V. Sasyuk3 RESUMEN 2 Favor de prop orcionar un resumen en espanol. ... The faintest detected meteors has the peak brightness about 10 mag, while the ma jority - from 4 to 8 mag. ... 2010; Karpov et al. 2013; Beskin et al. ...

Еще в разделе: (Показать все результаты (>179) - vo.astronet.ru/ )

Follow-up observations with the University of Washington 0.76 m telescope at Manastash Ridge Observatory (MRO) of the Sloan Digital Sky Survey (SDSS) cataclysmic variable (CV) SDSS J170053+400358 are presented. ... They estimate that the dimming amounted to about 0.028 mag (using two comparison stars that were each about 4 mag fainter than HD 209458). only UW affiliated authors have been listed, student researchers are marked with an ``*'' . ... XTE J1859+226" UW affiliated authors: *Kevin Krisciunas. ...

Еще в разделе: (Показать все результаты (>447) - www.apo.nmsu.edu/ )

• Astigmatism II
• Rotation range
• Appendix B

Cosmic ray intensities (left) compared with predictions (right) from IBEX. The similarity between these observations and predictions as evidenced by the similar color regions supports the local galactic magnetic field direction determined from IBEX observations made from particles at vastly lower energies than the cosmic ray observations shown here. The blue area represents regions of lower fluxes of cosmic rays. ...

Еще в разделе: (Показать все результаты (>5944) - www.astronomy.com/ )

• Probing extreme matter through observations of neutron stars | Astronomy.com
• How do astronomers determine the ages of stars? | Astronomy.com
• Hubble pins down age of oldest known star | Astronomy.com

... Research objects and scientific purposes . Space scientific program includes development and launch of two supersmall spacecrafts "Universitetskiy" and "Kompas-2" intended for monitoring of radiation conditions near the Earth. ... All the studies conducted in the near-Earth space are characterised by strong radiation fields. ... The circular polar orbits, which cover all the near-Earth space, are the most favorable for comprehensive studies of the radiation conditions near the Earth. ...

Еще в разделе: (Показать все результаты (>40) - cosmos.msu.ru/ )

... The extinction in terrestrial atmosphere. ... A star was observed at different zenith distances during one night at the Engelgardt's Astronomical Observatory in the program of atmospheric extinction study at blue. ... Calculate the air mass for given zenith distances in 1st 54.9 11800 column, and write the result into the 2nd column. ... Spectral observations. ... Calculate the radial velocity Vr of the star on each date, the results of measurements and write calculations into the table. ...

Еще в разделе: (Показать все результаты (>975) - www.issp.ac.ru/ )

• http://www.issp.ac.ru/lek/murzin/art39E.pdf
• http://www.issp.ac.ru/iao/2015/booklet/b10_ia15_p_en_a.pdf
• http://www.issp.ac.ru/iao/apao/2012/booklet/ap12_t_en_b.pdf

Sun and Geosphere, 2011; 6(1): - 33-35 ISSN 1819-0839 White light corona at different phases of the solar cycle P. V. Stoeva1, A. D. Stoev1, S. V. Kuzin2 1 Space and Solar-Terrestrial Research Institute, BAS, Stara Zagora Department, Bulgaria 2 Lebedev Physical Institute, RAS, Moskow, Russia E-mail: penm@abv.bg, stoev52@abv.bg, kuzin@sci.lebedev.ru Accepted: 12 October 2011 Abstract. ... 33 V. Stoeva, A. D. Stoev, S. V. Kuzin, White light corona at different phases of the solar cycle Fig.1. ...

Еще в разделе: (Показать все результаты (>3427) - www.tesis.lebedev.ru/ )

• http://www.tesis.lebedev.ru/en/docs/1536.pdf
• http://www.tesis.lebedev.ru/en/docs/1571.pdf
• http://www.tesis.lebedev.ru/en/docs/1379.pdf

... Heracles Triplane and Aerospace Systems . The key characteristics of two-stage aerospace systems are determined according to speed and carrying capacity of the aircraft-carrier used . ... So the SPIRAL system hypersonic carrier was expected to launch the second stage by weight 63 tons at a speed corresponding to 6M; whereas launching weight of the MAKS system orbital stage with the use of the An-225 MRIYA heavy subsonic aircraft reaches 275 tons, and the HERACLES aircraft - 450 tons. ...

Еще в разделе: (Показать все результаты (>14) - www.buran.ru/ )

... The described algorithm is suitable for measurements of complex images of stars. ... a) the zero-based number of stars in the complex (multicentric) image, . b) set of preliminary coordinates - x i , y i , for all stars, index i is number of a star, . ... i - index of a star in the complex image; . ... These parameters are calculated by a nonlinear method of a least squares.The main output parameters of this algorithm are x i , y i ; where the index i is number of a star in the multicentric image. ...

Еще в разделе: (Показать все результаты (>10) - www.izmccd.puldb.ru/ )

Russian SHAREABLE DATA CENTER Institute of Solar-Terrestial Physics SB RAS . ... The algorithm and appropriate program for decametric radiosignal propagation conditions prediction for paths from 500 to 9000 km have been developed at ISTP SB on the basis of normal wave method (AltyntsevaB.I,Iliyin N.V., Kurkin V.I. and others //Decameters channel simulation on the base of normal wave method . ... Solar activity indices are chosen automatically from the prediction date from the database . ...

Еще в разделе: (Показать все результаты (>19) - rp.iszf.irk.ru/ )

• East Siberian Center for the Earth's Ionosphere Research. VS data on-line
• East Siberian Center for the Earth's Ionosphere Research. Specific character

... The reduction system of observations FADPS (description in Russian) (Flexible Astronomical Data Processing System) for data of wide-band receivers of the first observation cabin of the radio telescope RATAN-600 had been created under the Unix-like operational system DEMOS for computers of the SM-1420-type (PDP/11) in 1987 for observation analysis and estimates of coordinates and flux densities of radio sources. ... FADPS: flexible astronomical data processing system at RATAN-600 in UNIX environment....

Еще в разделе: (Показать все результаты (>36) - sed.sao.ru/ )

• To gravitational wave discovery with LIGO
• Description of SED models
• Practicum (L.N.Makarova) for Summer School for Observation and theoretical

... Shortly after its discovery it was determined to be in a highly elliptical path near Jupiter and on a collision course. ... The size and mass of the original body and the individual fragments is as of this writing still highly uncertain. ... Between 16 July 1994 and 22 July 1994 the fragments impacted the upper atmosphere of Jupiter. ... The pictures were posted to the Net within hours of the impacts and caused severe overloading on some ftp and WWW sites. ... JPL's SL9 page . ... Small Bodies .. ...

Еще в разделе: (Показать все результаты (>1931) - www.sai.msu.su/ )

• Supernova Magnitude.
• SN 1989B Light Curve Analysis.
• Comets

To main of Laboratory . The research work and design of optical and optical-electronic devices are carries out by laboratory staff: . ... Lens: . ... In the layout 1 prism systems perform functions of dispersive element, corrector of aberrations, optical reducer. ... Spectral range 200 - 400 nm; . ... Back Forward . ... The main corrector's function are compensation of field aberrations of the main spherical mirror of a telescope (diameter of 600 mm, f'=1200 mm) and increase aperture ratio. ...

Еще в разделе: (Показать все результаты (>306) - www.mao.kiev.ua/ )

• Dept. for Physics of Stars&Galaxies
• Observations - Page 2
• Activity - Page 2

... After all we cannot send a probe to the star Altair to confirm that it is 17 light years away. ... The "Bessel determined that the star 61 Cygni was about ten light years away" Earth goes around the Sun in one year, so in six month it is in the opposite position in its orbit. ... In 1838 Bessel determined that the star 61 Cygni had a parallax of 0.314 arcseconds and therefore the star was about ten light years away (today the distance is more precisely measured to be 11.4 light years). ...

Еще в разделе: (Показать все результаты (>1818) - www.armaghplanet.com/ )

• http://www.armaghplanet.com/pdf/AstroTopics/Stars%20and%20Constellations/The%20size%20of%20Space.pdf
• Asteroid Apophis-Doomsday Postponed | Astronotes

COSMOLOGY ACROSS CULTURES ASP Conference Series, Vol. 409, c 2009 J. A. Rubino-Martґ J. A. Belmonte, F. Prada and A. Alberdi, eds. ~ in, A New Test of Einstein's Theory of Relativity by Ancient Solar Eclipses GЁ oran Henriksson Department of Astronomy and Space Physics, Uppsala University, Box 515, SE-751 20 Uppsala Abstract. ... The Lunar Laser Ranging (LLR) of the distance to the Moon makes it possible to check if there is any significant deviation from Kepler's third law of motion. ... 2002). ...

Еще в разделе: (Показать все результаты (>653) - astro.uni-altai.ru/ )

• http://xray.sai.msu.ru/~polar/sci_rev/1008.html
• Equations for T

Elsevier Ed itorial System(tm) for JASR 2006 Manuscript Draft Manuscript Number: Title: Determination of K, Ar, Cl, S, Si and Al flare abundances from RESIK soft X-ray spectra Article Type: Contributed Paper Section/Category: E2.4 - Solar Magnetic Field and Activities Keywords: solar physics; X-ray flares ; spectroscopy; abundances Corresponding Author: Dr. J. Sylwester , Corresponding Author's Institution: Space Research Center First Author: J ... All flares were observed early Fig. ...

Еще в разделе: (Показать все результаты (>23) - solarwind.cosmos.ru/ )

• http://solarwind.cosmos.ru/txt/2011/presentations/Sun/Kuznetsov/RESIC_X_continuum2010.pdf
• http://solarwind.cosmos.ru/txt/2011/presentations/Sun/Kuznetsov/RESIC_Potassium2010.pdf

. [ Go back to Comet WWW site ] . Andrew A. Martis . martis @ sai.msu.ru .

Еще в разделе: (Показать все результаты (>72) - comet.sai.msu.ru/ )

• Our observations: 970311
• Comet Center of SAI: Our observations
• Our observations: 95.10.23

POWER SPECTRA OF BLACK HOLES AND NEUTRON STARS AS A PROBE OF HYDRODYNAMICAL STRUCTURE OF THE SOURCE: DIFFUSION THEORY AND ITS APPLICATION TO X-RAY OBSERVATIONS Lev Titarchuk1 , Nikolai Shaposhnikov2 , and Vadim Arefiev 1 3 George Mason University ... Russian Academy of Science, Profsoyuznaya 84/32, 117997, Moscow, Russia, gita@hea.iki.rssi.ru ABSTRACT We present a model of Fourier Power Density Spectrum ( ... The Fourier Power Density Spectrum (PDS) also has a specific shape in each state. ...

Еще в разделе: (Показать все результаты (>742) - hea.iki.rssi.ru/ )

• Russian Turkish 1.5-m telescope
• RTT150 project data archive
• GRANAT Home Page

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 , . ...

Еще в разделе: (Показать все результаты (>8) - kcor.sai.msu.ru/ )

• K-corrections calculator (version 2010)