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21. ASP: Star Science in the Autumn Sky
Once students get the hang of it, they can find and measure the brightness of Delta Cephei in a few minutes. ... of Delta Cephei . ... Oct. ... The following table lists the measurements of Delta Cephei made by one amateur astronomer in autumn 1990. ... 4.0 . ... This activity is a simplified version of one that appeared in Hands-On Astrophysics, a series of activities prepared by the American Association of Variable Star Observers with support from the National Science Foundation. << previous page | ...
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Ссылки http://www.astrosociety.org/edu/publications/tnl/32/starscience4.html -- 18.8 Кб -- 02.10.2012
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22. APOD: 2015 January 21 - The Complex Ion Tail of Comet Lovejoy
... 2015 January 21 . The Complex Ion Tail of Comet Lovejoy . ... As the name implies, the ion tail is made of ionized gas -- gas energized by ultraviolet light from the Sun and pushed outward by the solar wind . ... The effect of the variable solar wind combined with different gas jets venting from the comet's nucleus accounts for the tail's complex structure. Following the wind, structure in Comet Lovejoy's tail can be seen to move outward from the Sun even alter its wavy appearance over time. ...
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Ссылки http://www.sai.msu.su/apod/ap150121.html -- 6.4 Кб -- 10.04.2016
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23. About RATAN
. Diameter of circular antenna . 576 m . Number of antenna elements . 895 . Size of an element . 11.4 x 2 m . Geometrical area . up to 20000 sq.m . Wavelength range . 1 - 50 cm . Angular resolution . 2 - 400 arcsec . Accuracy of coordinate determination . better than 1 arcsec . Limiting sensitivity (1994): . flux density . 0.500 mJy . brightness temperature . 0.050 mK
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Ссылки http://www.issp.ac.ru/astro/sao/ratantab.html -- 2.9 Кб -- 06.03.2000
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24. http://www.iki.rssi.ru/eng/2013niokr.pdf
... Contacts: Evgeny A. Loupian, Dr. Sci., e-mail: evgeny@smis.iki.rssi.ru Sergey A. Bartalev, Dr. Sci., e-mail: bartalev@smis.iki.rssi.ru Web interface for burnt area mapping using Landsat data Stellar Tracker In 2013 IKI RAN together with the NPK "Electrooptics" completed the phase of the five-year research on studying the ways to build a stellar inertial navigation system (SINS) for aviation applications. ... Fig. 1 shows the SINS layout created on the basis of the astronomical camera. ... Fig.1. ...
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Ссылки http://www.iki.rssi.ru/eng/2013niokr.pdf -- 651.3 Кб -- 12.02.2014
[ Текст ] Ссылки http://www.cosmos.ru/eng/2013niokr.pdf -- 651.3 Кб -- 12.02.2014
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[ Текст ] Ссылки http://www.cosmos.ru/eng/2013niokr.pdf -- 651.3 Кб -- 12.02.2014
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25. Explosive Events
... High spectral, spatial and temporal resolution UV observations of the quiet Sun transition region show a highly structured and dynamical environment where transient supersonic flows are commonly observed. ... Estimates of the kinetic and enthalpy fluxes associated with these events show that explosive events are not important so far as solar coronal heating is concerned. ... In some cases, non-Gaussian line profiles are associated with supersonic flows in small magnetic loops. ...
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Ссылки http://star.arm.ac.uk/annrep/annrep2004/node44.html -- 8.1 Кб -- 19.04.2005
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26. Izmccd
... 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. ...
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Ссылки http://www.izmccd.puldb.ru/izmccd9e.htm -- 9.9 Кб -- 17.09.2007
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27. http://hea.iki.rssi.ru/integral06/papers/D32_Khamitov01-04Oct06_10:26:31.pdf
... R-band images obtained at 0.8 arcsec seeing conditions have allowed us to separate foreground star from point-like extragalactic source and estimate their brightness separately. ... To study the nature and properties of the source, we observed it under high spatial resolution. ... CONCLUSION RTT150 optical observations with sub-arcsecond seeing and low resolution spectra confirm the hypothesis of superposition of a radio source onto a `normal' F/G galactic star proposed by [1]. ...
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Ссылки http://hea.iki.rssi.ru/integral06/papers/D32_Khamitov01-04Oct06_10:26:31.pdf -- 635.3 Кб -- 04.10.2006
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28. Bright Supernova Bright Supernova
. Please standby and you will be automatically connected to the new location of the unframed Supernova page. Or, click on the link above. If you have questions or problems, please email me at David Bishop dbishop@vhdl.org . Last modified: Mon Aug 27 12:40:15 EDT 2001
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Ссылки http://www.sai.msu.su/mirrors/isn/snimages/ -- 2.4 Кб -- 05.02.2013
[ Сохраненная копия ] Ссылки http://www.rochesterastronomy.org/snimages/ -- 2.5 Кб -- 18.01.2015
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[ Сохраненная копия ] Ссылки http://www.rochesterastronomy.org/snimages/ -- 2.5 Кб -- 18.01.2015
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29. Practical Astrophysics
Subject, Object and Problems of Astrophysics. Practical and Theoretical Astrophysics. ... Visual Telescope; Problems Which Are Solved with the Its Help. ... Resolution of Telescopes. ... Effectiveness of Telescope in Respect of Resolution. ... Optical Power of Telescopes for Star-like and Extensive Objects. Boundary Magnitude. Reasons of Light Dissipation in Telescopes. ... Spectral Instruments in Astrophysics. ... Basic Photometrical Ideas, Magnitudes and Their Measurement. ...
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Ссылки http://space.univ.kiev.ua/courses/pract_astroph_e.html -- 7.6 Кб -- 23.02.2005
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30. VSOP Symposium Proceedings
Individual papers from the VSOP Symposium Proceedings, "Astrophysical Phenomena Revealed by Space VLBI", eds H. Hirabayashi, P.G. Edwards and D.W. Murphy (ISAS), can be downloaded as gzipped postscript files by clicking on the links below. ... Multi-Epoch Global+VSOP/HALCA Observations of Virgo A at lambda 6 cm . ... Space-VLBI Observations of the Core-Jet in the Nearby Spiral Galaxy M81 . ... H. Hirabayashi, P.G. Edwards, B.G. Piner et al. ... Pentachromatic VSOP and VLBA Survey of GPS Sources . ...
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Ссылки http://www.vsop.isas.ac.jp/vsopsymp/papers/index.html -- 12.2 Кб -- 23.08.2000
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31. The Face on Mars
The Face on Mars . ... The Raw Images . Table 1: List of Viking Orbiter Images of the "Face on Mars" . ... Processing the Face Images . Table 2: Dimensions of Mercator Projected Images of "The Face on Mars" . Map Projected Images . ... Processing the "Face on Mars" Images . ... This page will provide interested persons with both the raw Viking images, transformed to GIF format, and a brief tutorial (with examples) of image processing techniques applied to create "better looking" images. ...
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Ссылки http://www.iki.rssi.ru/solar/eng/face.htm -- 12.7 Кб -- 15.10.1997
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32. MASTER GLOBAL ROBOTIC TELESCOPES NET
... MASTER Net is 56 square degrees per 1 exposition . ... 06 Dec 2015: GRB 151205B: MASTER-NET early optical observations GCN18665 . ... 18 Nov 2015: GRB 151118A: MASTER-NET optical observations GCN18613 . ... 12 Nov 2015: GRB 151112A: MASTER-NET optical limit GCN18591 . ... 07 Nov 2015: GRB 151107A: MASTER-NET optical observations GCN18565 . ... 31 Oct 2015: Five OTs detected by Global Robotic MASTER Net ATel8232 . ... 02 Oct 2015: GRB 151001B: MASTER-NET early optical observations GCN18380 . ...
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33. Index
... Aloisi, A. The Old Stellar Population . Alonso-Herrero, A. HST /NICMOS Observations of the . ... Balcells, M. HST-NICMOS Observations of Galactic . ... Baum, S.A. Investigating the Evolution of . ... Becklin, E.E. A Coronagraphic Search for . ... Clampin, M. The Old Stellar Population . ... Close, L. HST NICMOS Observations of . ... The Stellar Population in . Geballe, T.R. HST NICMOS Observations of . ... Greggio, L. The Old Stellar Population . ... Leitherer, C. The Old Stellar Population . ...
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Ссылки http://www.stecf.org/conferences/sardinia/node40.html -- 14.1 Кб -- 12.06.2006
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34. http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7B6801350C-3419-40D1-A6FE-9B0611582FFB%7D
UX Tau A's protoplanetary disk extends to a radius of 120 AU (1 AU = the distance between the Earth and the Sun) with a high spatial resolution of 0.1" (arcsecond) Left: Near-infrared intensity image of UX Tau A. White is the brightest, and then red. ... Its west side (on the right) is a little brighter than its east side; this indicates that the inclination of the disk is in the east-west direction and that its west side is closer to the observer (see figure on the right). ...
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Ссылки http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7B6801350C-3419-40D1-A6FE-9B0611582FFB%7D -- 4.3 Кб -- 10.04.2016
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35. TESIS - Telescopes for EUV Spectral Imaging of the Sun
... The TESIS is a set of solar imaging instruments developed by the Lebedev Physical Institute of the Russian Academy of Science, and launched aboard the Russian spacecraft CORONAS-PHOTON on January 30, 2009. The main goal of the TESIS is to provide complex observations of solar active phenomena from the transition region to the inner and outer solar corona with high spatial, spectral and temporal resolution in the EUV and Soft X-ray spectral bands. ... Solar activity hits a new low . ...
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Ссылки http://www.tesis.lebedev.ru/en/ -- 19.2 Кб -- 09.04.2016
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36. Six-Centimeter Radar Observations of 4179 Toutatis
... Old World First Asteroid Radar Echo. ... It testifies that 4179 Toutatis is a double object like asteroid 4769 Castalia. ... Interference of Radar Echo from the Binary Asteroid 4179 Toutatis. ... An analysis of the 6-cm radar data revealed quasi-harmonic oscillation of the echo’s “central” Doppler frequency with a period of about 14 sec and a deviation of about (0.7*B) Hz, where B is the echo bandwidth, which for 4179 Toutatis was equal to 2.1 Hz and 1.9 Hz for 1992 Dec 8 and 9, respectively. ...
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Ссылки http://www.cplire.ru/html/ra&sr/sr/4179-Toutatis/index.html -- 11.9 Кб -- 02.12.2002
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37. Optical systems and devices
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. ...
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Ссылки http://www.mao.kiev.ua/lao/optical_systems_eng.html -- 19.6 Кб -- 12.01.2010
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38. Emma Kirby - Science
... Science . ... The Local Sphere of Influence (LSI) survey is a deep near-IR (H-band) survey of galaxies residing in the Local Sphere of Influence ( D < 10 Mpc). The images with a typical surface brightness limit 4 mag fainter than 2MASS (24.5 mag arcsec -2 < SB lim < 26 mag arcsec -2 ) have been obtained with IRIS2 on the 3.9~m Anglo-Australian Telescope. 11 of the observations have resulted in non-dections or the images were saturated by foreground stars. ... Copyright 2007 Emma Kirby. ...
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Ссылки http://www.mso.anu.edu.au/~emma/science/science.html -- 5.9 Кб -- 01.10.2012
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39. Kholtygin et al., PAZH (2003)
... Fast line profile in the spectra hot O stars , Astrony Letters, 29 , 175-187 (2003) . ... Preliminary results of spectral observations of stars lambda Ori, alpha Cam and 19 Cep with the 1 m telescope of Special Astrophysical Observatory are presented. A variability of line profiles in the spectra of all studied stars is detected. ... The cyclical profile variations of HeII lambda 4686 and CIII lambda 5696 lines in the spectra of lambda Ori A with the recurrence time of 1.3-1.6 days are detected. ...
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Ссылки http://www.astro.spbu.ru/staff/afk/Papers/2003/PAZhabstr.html -- 2.6 Кб -- 19.11.2010
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40. http://xmm.vilspa.esa.es/calibration/documentation/epic_cal_meetings/200111/Cal-Ops_Nov2001_NewerModes.pdf
... Three ` flavours'of binning and discard: · Discard 9 rows , readout 1 row, cut 10:1, resolution 1.75ms · Discard 90 rows , bin 10 rows , cut 10:1, resolution 2.76ms · Discard 95 rows , bin 5 rows , cut 20:1, resolution 2.76ms · Compared with normal timing : · 100 rows and readout, no cut, resolution 1.75ms Bin · Tested on XMM on Crab during rev 333 - 3 October 2001 Crab - rev 333 - Bright timing ... Counting mode and FIFO full errors. ... Crab - rev 333 - Bright timing mode ...
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Ссылки http://xmm.vilspa.esa.es/calibration/documentation/epic_cal_meetings/200111/Cal-Ops_Nov2001_NewerModes.pdf -- 426.1 Кб -- 14.05.2014
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