... Laboratory and theoretical modelling of the UV bump on the interstellar extinction curve is a very popular topic in dusty investigations. ... feature is illustrated by Fig. 10 where the profiles were calculated using the model of graphite spheres. Figure 10: Normalized extinction efficiencies for graphite spheres. ... The lower panel shows the summary extinction of two graphite spheres with radii and (from upper panel) taken in equal proportions. ...

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• Polarization properties (transmitted radiation)
• Linear polarization: wavelength dependence
• INTAS project 2003

This document explains values, tables and other matters on solar physics computing pages. ... is040423.ete : SAHA-S tables, interpolation values: T, rho, X. Z is fixed at 0.02. See reference above. opal2005.etf : OPAL EOS, interpolation values: T, rho, X, Z. Downloaded from OPAL site , marked there as "2005", seems to be unpublished. opal2001.etf : OPAL EOS, interpolation values: T, rho, X, Z. Rogers F.J., Nayfonov A. Astrophys. ... The following values can be calculated: . ... dimensionless . ...

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• Recursion
• Explanation of certain terms
• ApSA courses

. Radar data indicate that the walls of the Moon's Shackleton Crater may hold ice. Actual observations (CPR) by LRO's Mini-RF instrument are compared to calculated radar values for 0.5 percent to 10 percent ice. NASA

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• http://www.astronomy.com/sitefiles/resources/image.aspx?item=%7BF73D2688-363A-45BD-9B74-34783FB97A4D%7D
• Fast radio burst "afterglow" was actually a flickering black hole |
• Probing extreme matter through observations of neutron stars | Astronomy.com

Next: RSOG Post-Observation Products . Previous: Navigation Post-Observation Products . ... Executed Sequence of Events (XSOE) . SRT and SC Status Reports . ... GOCG to RSOG, to JPL MMNAV, to MBC and to DPC . What: The actual executed sequence of events (XSOE) is summarized in an XSOE file. ... Where: File will be placed in /spectr/ra/data/srt/xsoe on the GOCG FTP site. back to top . ... What: The GOCG will provide regular updates on the SRT and SC payload status to RSOG. ...

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• DPC Post-Observations Products
• Description of the RadioAstron project, english version
• Departement of Quantum Astrophysics

This section describes the calculation by which Aristarchus used the duration of a total lunar eclipse to deduce the distance of the Moon. ... This lesson plan supplements: "How Distant is the Moon--1", section #8c: on disk Shipprc2.htm , on the web . ... The shadow of the Earth at the Moon's distance is narrower than the Earth, because the Sun is seen not as a point but as a disk 0.5 degrees wide. ... An eclipse of the Moon is the passage of the Moon through the shadow of the Earth. ...

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• How it all began
• How Orbital Motion is Calculated
• The Scale of the Solar System

... Exposure Time Calculator (ETC) . Survey processing . ... VISTA is a 4-m class wide field survey telescope for the southern hemisphere, equipped with a near infrared camera (1.65 degree diameter field of view at VISTA's nominal pixel size) containing 67 million pixels of mean size 0.34 arcsec and available broad band filters at Z,Y,J,H,K s and a narrow band filter at 1.18 micron. A wide field visible camera, if constructed, could also be used on VISTA. ... Tile . ... ESO VISTA Public Surveys . ...

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• VISTA ETC - Exposure Time Calculator

. Previous slide . Next slide . Back to first slide . View graphic version .

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• The SMS Survey
• Of course there is a barbecue! Actually, the storm missed.
• Pink Black Holes: Frequently Asked Questions

New reduction of minor planets photographic plates obtained with Pulkovo Normal Astrograph A.A. Berezhnoy Pulkovo Observatory of RAS, Saint-Petersburg, Russia Minor Planet observations at Pulkovo Periodical observations of 14 bright asteroids named Selected Minor Planets (SMP) were performed at Pulkovo since 1948 within the international framework started by works of B.V. Numerov and D. Brouwer. ... 108 133 113 74 124 67 97 88 14 84 64 5 20 19 Epochs (YYYY.MM) 1200 Mean values of total obs. ...

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• http://www.puldb.ru/nikolaev_2011/PUB_NIKOLAEV_2011/damian.pdf
• Pulkovo Database of Observations of Solar System Bodies
• Pulkovo Database of Observations of Solar System Bodies: Help

New Moons of Uranus . Brent Gladman's Home Page . ... The discovery of two probable distant satellites of Uranus was reported by B. Gladman, P. Nicholson, J. Burns and J. Kavelaars. ... This discovery was reported in the IAU Circular 6764 . ... Discovery image of S/1997 U 2 . This shows the discovery image of brighter of the two new moons of Uranus. ... This shows the discovery image of faint new moons of Uranus. ... This shows another discovery image of faint new moons of Uranus. ... Uranus . ...

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• Solar Mystery Nears Solution With Data From SOHO Spacecraft
• APOD: 2000 July 13 - LP 944-20: A Failed Star Flares
• Z Cnc

... Science . ... Science Users Information > Science Publications > Science Announcements . ... Observing with ESO Telescopes . ... Published: 04 Apr 2014 . ... First data releases of the Elais-S1 and CDFS fields have just been made available. ... The zCOSMOS-bright advanced data products are now available via the Science Data Products query form of the ESO Archive . ... The Call for Proposals for observations at ESO telescopes during Period 94 (1 October 2014 - 31 March 2015) has been released. ...

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• Homepages of Christian A. Hummel
• ESO - ESO sky correction tools
• NPOI Lab

... A radio galaxy is a galaxy that emits an unusually big amount of energy at radio wavelengths. ... Inside of each galaxy with an active nucleus (radio galaxies are among them) there must be a system of a "central machine" responsible for the colossal amount of the emitted energy from radio to gamma ranges. ... Sometimes a radio source in an active galaxy may flare again if the needed conditions appear (a new portion of matter would fall into the furnace of the "central machine"). ...

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• Measurement of the dark halo shape in polar ring galaxies
• Galaxy sector, archive 2007
• Multiple System iUMA

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• The Case for Non-Zero Lambda
• Astronomy HyperText Book
• Intelligent Life in the Universe

Astronomy Discussion Forums . Forums: . ... Discussion Forums . ... Iridium Flare . Forum List | ... Post Message | ... Actually, you were right about Iridium flare. ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

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• The “space-time” Isn’t Actual Reality - an Astronomy Net Blackholes Forum
• FURTHER EXPLANATION [NWOBU'S EFFECT] - an Astronomy Net Observation_reports
• Observations Of Mars - an Astronomy Net Observation_reports Forum Message

... Actual stars are expected to be more complicated than these simulations. ... The spot may be entirely visible most of the time (one would observe a prolonged flux minimum low), and then part of it may disappear over the horizon briefly and then return (slow rise and then fall back to constant level). ... With the set of observations taken here, I have information available from several comparison stars and color information. ... The period found must be consistent with the data from any given night....

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• A Preliminary Investigation
• Spectroscopic Data
• Correlating Spectral Data with Spatial Gain Variations

Databases (NSDC) of the Natural Planetary Satellites. ... NSDC: Database of astrometric observations of Natural Planetary Satellites . ... They are thoroughly looking for observations in different sources, creating their owndatabases which are then mostly inaccessible to other researchers. ... In the file "content" with explications, the reference is given to the data source as well as the bibliographic reference. ... Data sources. ... Why a specific bibliographic database for Natural satellites? ...

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• ji0003
• jg0010
• Y.Kupryakov, SAI, MSU

... The experience of determination of the link between radio sources and dynamical reference frames is presented. To obtain this connection we used a series of very long baseline interferometry (VLBI) observations of the spacecraft Phobos-2 and angularly nearby quasars. ... The dynamical reference frame is determined by equator and equinox of these ephemerides. ... References . ... The relative orientation of the radio and dynamical reference frames can be described by a sequence of three rotations . ...

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• A CLEAN-based method for mosaic deconvolution
• De-convolution of a Gaussian beam from planetary observations Bojan Nikolic web
• Bojan Nikolic -- 90 GHz Continuum Observations of Messier 66

... On­The­Fly Re­Calibration of HST Observations B. Pirenne and A. Micol Space Telescope -- European Coordinating Facility, ESO, Garching, D­85748 D. Durand and S. Gaudet Canadian Astronomy Data Centre, DAO, Victoria, BC Abstract. ... On­the­fly re­calibration data flow: from request submis­ sion to data delivery. ... On­the­fly re­calibration has another advantage for our archive sites: we only need to keep the raw data and calibration reference files on­line for the process to be automatic. ...

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• Imaging Polarimetry with NICMOS
• Index
• NICMOS Observes the Galactic Center

... 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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• Radar Investigations of Asteroid 33342
• Atmospheric influence on the different radioengineering systems functioning.

Abstract -- Calculations are performed for the linear polarization of starlight due to extinction by aligned dust grains when the starlight traverses a medium with irregular magnetic fields. This medium is intended to represent the optically thick components of interstellar clouds which are observed to make little, if any, contribution to the polarization of starlight. ...

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• Circular Polarization
• NGC 4258 Maser Polarimetry

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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• Observations - Page 2
• КАРТОТЕКА ПУБЛ?КАЦ?Й СП?ВРОБ?ТНИК?В ГАО НАН УКРА?НИ
• Sergiy Borysenko