... Exposure Time Calculator (ETC) . ... ESO - Public Surveys . ... the recommended values to use for DIT, . ... Detector on-chip integration (DIT): seconds. to your chosen value - a separate page gives recommended values to use for DIT - for modes 1 and 2 below you may wish to start with the maximum recommended values as these will minimize the effect of read noise (a total object exposure of Y secs with DIT=X secs will produce Y/X lots of read noise) and give you a lower limit on the time needed. ...

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• Observing with VISTA
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RELATIVE SUNSPOT NUMBERS Description of Data from SGD Explanation of Data Reports: Relative Sunspot Numbers -- The relative sunspot number is an index of the activity of the entire visible disk of the Sun. ... The provisional daily Zurich relative sunspot numbers, Rz, were based upon observations made at Zurich and its two branch stations in Arosa and Locarno and communicated by M. Waldmeier of the Swiss Federal Observatory. ... This indicates the uncertainty above and below the predicted number. ...

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... Linux device list. A list of major and minor device numbers for Linux devices. ... A description of and a proposal for a standard Linux directory tree, with the intention is to make it easier to package software and administer Linux systems by making files appear in standard places. ... Available via FTP from ftp.funet.fi , directory /pub/Linux/doc/fsstnd . ... Linux filesystem defragmenter. Available electronically from \ ftp://sunsite.unc.edu/pub/Linux/system/Filesystems/defrag-0.6.tar.gz . ...

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• Want to observe? Read the guide given by Tolis | International Year of
• Simon Jeffery's Software Store: TAP chemical functions
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Lipunov, V.M., Postnov, K.A. and Prokhorov, M.E. The Scenario Machine: Binary Populational Synthesis . ... Lipunov, V.M. and Postnov, K.A. "The joint evolution of normal and magnetized stars in close binaries: analytical description and statistical simulation", Astrophys. ... Lipunov,V.M., Postnov, K.A. and Prokhorov, M.E. "Neutron stars evolution in massive binary systems" in:"Physics of the neutron stars: formation, ctructure and evolution" Leningrad, vol.2, pp.74-76, 1988 . ...

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... 237S (SIMBAD/NED BibCode) ================================================================================ Keywords: Sun: UV radiation - atmospheric effects - Sun: atmosphere - lines: identification Description: An ultraviolet atlas of the solar spectrum with a spectral resolution of 15mA in the region 1948-2000A is presented. ... The wavelength atlas with a list of about 550 lines has been synthesized from data at center of the Sun ({mu}=1) and at {mu}=0.89, smoothed out over an area of 30 arcsec. ...

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• Positions and Proper Motions
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• Supplement to the PPM Star Catalogue

... Stellar Evolution . Nucleosynthesis in Stars . The Evolution of Star Clusters . JAVA Physics Lab . Alternative Energies Class . Steve Kevan's Physics 251 Class . ... Talk on Solid State Physics of CCD detectors . Talk on Cosmological Issues . ... Digital Spectra of Stars . NETexperts E-mail List . The Electronic Universe Project e-mail: nuts@moo.uoregon.edu ...

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wcs2dr -- Convert WCS header information into drizzle parameters for image registration wcs2dr image refim . images = "" [file name] . ... The style for the output listing. ... cl wcs2dr @files ref style= para # drizzle .data= test1 drizzle .shft_fr= output drizzle .shft_un= output drizzle .align= center drizzle .xsh= 552.733 drizzle .ysh= 482.749 drizzle .scale= 1.009 drizzle .rot= - 2.871 # drizzle .data= test2 drizzle .shft_fr= output drizzle .shft_un= output ...

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• STScI NICMOS Software
• SEEING (V1.3) --- Apr00 --- SEEING (V1.3)
• MAKEASN (Nov98) --- nictools --- MAKEASN (Nov98)

... Melted remains of Cassegrain spectrograph areтАж . Sidebar Left . Sidebar Top . No Sidebar . Sidebar Bottom . ... Title: Melted remains of Cassegrain spectrograph are on the remains of the observing carriage . Description: Newtonian platform has collapsed, gears for platform rest on the dome track . ... Melted remains of Cassegrain spectrograph are on the remains of the observing carriage Newtonian platform has collapsed, gears for platform rest on the dome track . ...

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• GSAOI Other Instrument Links Page
• Other Infrared Instruments.
• References

This service contributes to the International Service of Geomagnetic Indices (ISGI) of the IAGA . ... The Kp numbers of the previous month are available in tabular format . ... There are available also historical and current Kp and derived indices per anonoymos FTP (see below). ... U.S.A. FTP server: ftp://ftp.ngdc.noaa.gov/STP/GEOMAGNETIC_DATA/INDICES/KP_AP/ . monthly update) . ... contains the monthly Kp / ap tables in a simple text format readable for both humans and computers (*.tab). ...

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• TCV [Oulu]
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... Karpachev A.T., IZMIRAN, e-mail: karp@izmiran.ru . ... The empirical median model of the shape and position of the MIT (Main Ionospheric Trough) in the Northern and Southern Hemispheres is presented. ... Geomagnetism and aeronomy, v.26, ? ... Karpachev A.T., Afonin V.V. Dependence of the ionospheric trough occurrence probability on the season, local time, longitude, and level of magnetic activity Geomagnetism and aeronomy, v.38, ? ... Karpachev A.T. Characteristics of a Ring Ionospheric Trough. ...

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• Reference Docuemntation

We present a catalogue of galaxies for which spatially resolved data on their internal kinematics have been published; there is no apriori restriction regarding their morphological type. The catalogue lists the references to the articles where the data are published, as well as a coded description of these data: observed emission (E) or absorption (A) data, optical (O) or radio (R) data, velocity (V) or velocity dispersion (D), radial profile (1) or 2D field (2). ...

32. INTEGRAL 9-year Galactic Survey

33. The Sunspot Observer - The solar regions - The description of the solar regions

34. Observing Resources for Amateur Astronomers ? Part 3: Advanced Observers ?

35. Data bases of Natural Satellites. Documentation. Structure

36. ASRAS HOME

37. http://www.gao.spb.ru/english/publ-s/viii-rfs/p099.pdf

38. http://www.atlasaerospace.net/eng/online.htm

39. Izmccd

40. Small telescopes short description