... One striking feature is a small source of almost pure H 2 line emission, which is located near one of the compact sources in Orion reported by O'Dell and collaborators (HST-18 = 203-504). ... H-H objects, Proplyds, Orion Bar, H 2 . ... We obtained a series of images across the bright rim of the Orion Bar near the peaks of mm-wave molecular line emission with NICMOS cameras 1-3 (NIC1, NIC2, NIC3) in several filters on 1998 February 18. ... The suggestion of an H-H object does not seem compelling. ...

RADIOASTROPHYSICAL DEPARTMENT • INSTITUTE OF SOLAR-TERRESTRIAL PHYSICS RAS SB . Research results on fast active processes General information Main characteristics of the Radio telescope Observing programs General view of the antenna array Main research areas Principle of generation of radio images Radio telescope's beam Receiving systems Main characteristics of the base receiving-recording complex Calibrations Data archive and databases ... Distribution of the recorded spikes in duration . ...

... 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. ...

A forthcoming mutual events of planets and astrometric radio sources . ... Radio astronomy observations of close approaches of the Solar System planets to compact radio sources as well as radio source occultations by planets may be of large interest for planetary sciences, dynamical astronomy, and testing gravity theories. ... close approach, radio source, VLBI observation, mutual events. ...

The database contains references to the papers, data files and links to the Internet resources related to measurements and calculations of the optical constants in the wavelength interval from X-rays to radio domain. ... References to some useful books and reviews on the subject (e.g. the classical handbooks edited by E.D.Palik) and links to Internet collections of optical constants and personal WWW pages with related software were also placed in the database. You have arrived at our welcome page. ...

... Sun as a Source of Perturbation of Near-Earth Medium and Solar System Bodies. ... Tidal Influence of the Sun on the Earth. ... Structure of Solar Atmosphere. ... Observing Manifestations of Solar Activity. ... Forecasting of Solar Activity. ... Influence of Solar Activity on the Structure and Dynamics of Terrestrial Atmosphere. ... Problem of Mechanism of Solar-Troposphere Connections. ... Phenomenons in Auroral Zones of the Earth as a Result of the Sun Influence on the Terrestrial Atmosphere. ...

... OH, = 18 cm Nancay Radio Telescope, OH 18-cm line observations , since 1969 F, Jy 6 4 2 0 0 -1 -2 0 -1 -2 0 -2 -4 -6 30 40 50 1612 MHz I HU Pup August 5, 2009 1665 MHz 4 2 0 0.5 0.0 - 0.5 -1.0 -1.5 1.0 0.5 0.0 - 0.5 4 3 2 1 0 -1 1667 MHz I I 1.0 0.5 0.0 0.5 0.0 22-meter telescope, Pushchino Radio Astronomy Observatory H2O F, Jy 1.0 0.5 0.0 0.4 0.2 0.0 -0.2 -0.4 0.4 0.2 0.0 -0.2 -0.4 -0.6 0.6 0.4 0.2 0.0 -0.2 -0.4 -70 -60 -50 -40 -30 -20 -10 0 Mira-type star R Leo. ...

Stellarium 0.12.3 . ... FileљStructure . FileљList . ... core . modules . Meteor.hpp . ... 46 љ Meteor ( const StelCore *, double v); . ... 64 љ Vec3f position; . 65 љ Vec4f color; . ... 67 љ : position( Vec3f (pos[0], pos[1], pos[2])), color(color) {} . 68 љ VERTEX_ATTRIBUTES( Vec3f Position , Vec4f Color); . ... 75 љ Vec3d obs; // observer position in meteor coord. system . ... 88 љ double xydistance; // distance in XY plane (orthogonal to meteor path) from observer to meteor . ...

... Spherical aberration, coma, and astigmatism are also easily observed using the star test. ... Off-axis images are complex. ... Fig. ... Diffraction by a circular aperture as a function of defocus for no aberration Airy Disk 1 wave defocus Less than 1 wave defocus Fig. ... Diffraction by a circular aperture as a function of defocus for third-order spherical aberration Paraxial Focus Small distance inside paraxial focus Moderate distance from marginal focus Immediate neighborhood of marginal focus Fig...

... AS A RESULT, ON JANUARY 7 IN 8 HOURS TWO LARGE FLARES WERE OCCURRENCE: 07.01 1007 1013 1124 S13E13L101 М7.2/2В 9.2E-2 11944 07.01 1048 1832 2054 S18W08L101 X1.2/2N 2.5E-1 11944 II/2 CME/1362km/s THE LAST FLARE THE SOURCE OF THE THIRD LARGEST FLUX FOR THE CURRENT SOLAR CYCLE OF THE SOLAR PROTON EVENT: Pr(>10 MeV) to 7.01/2030 UT; max 972 pfu 08/2030 UT; in progress. ... FLARE ACTIVITY WAS AT THE HIGH LEVEL 31.12 AND 1.01, THE AVERAGE LEVEL 2 -4.01 AND LOW LEVEL IN OTHER DAYS. ...

Geophysical Research Abstracts Volumi 3, 2001 . ... The observable lunar region was a seismic active region (30W, 5S). ... arcminutes long trip on the lunar surface in direction to Mare Serentatis. ... 23 Moon's phase angles and 1954 lunar regions. ... basin are compared to craters located in highland and mare regions. ... morphology of craters in the mare region is found to differ drastically from those in . ... and craters with faults in the mare region are due to lava flooding of ancient . ...

... Edward G. Gibson (Ph.D.) . ... School, Kenmore, New York; received a bachelor of science degree in Engineering from the University of Rochester, New York, in June 1959; a master of science degree in Engineering (Jet Propulsion Option) from the California Institute of Technology in June 1960; a doctorate in Engineering with a minor in Physics from the California Institute of Technology in June 1964; an honorary doctorate of science from University of Rochester (NY) in ...

Astronotes Armagh Planetarium's Stellar Blog! ... Comets and Asteroids . ... Image credit:ESO/J.Emerson/VISTA. ... However others are less pessimistic and it has even been claimed that the mysterious ?Wow! signal? received in 1977 originated from the direction M55.б  Sadly, this still unexplained pulse of radio energy originated from a location rather to the northwest of M55 so I doubt if the source was this cluster (if indeed the signal was genuinely of extraterrestrial origin). ... Mysterious Wow! ...

... One of this year's largest mass ejections from the Sun's atmosphere was recorded last Sunday by TESIS telescopes aboard the CORONAS-PHOTON satellite ( video - wmv 4.3 MB ). ... Over the course of a week, two gigantic solar prominences were simultaneously ejected from the surface of the Sun. ... Earth will not feel the Sun's influence either. ... The TESIS observatory ї TESIS: www.tesis.lebedev.ru . ... One of this year's largest mass ejections from the Sun's atmosphere (movie WMV, 4.3 MB) . ...

Authors: Yu.G. Shevelev , V.A. Marsakov , . ... We have constructed and investigated properties of metallicity function of disk stars with different ages, proceeding from the statistically restored real altitude distributions of stars at the solar galactocentric distance. It is shown that the metallicity distribution of stars in each age range is not of Gaussian form, but it may be considered as a superposition of two normal distributions centered at -0.2 and 0.0 dex. ...

... Radio Astronomy . ... ASRAS Board Members . ... To see the most up to date news and events happening with ASRAS log in with your user name and password and then click on the Activities page. ... Messier Marathon (Member Observing) CANCELLED Saturday, April 9, 2016 9:00 PM Location:Farash Center Ionia NY . ... ASRAS Members meeting - Friday May 6 at Farash Center - Ionia NY . ... ASRAS Board members meeting - monday May 9 @ Farash Center Monday, May 9, 2016 7:00 PM Location:Farash Center Ionia NY . ...

... astro-ph . ... Statistical Characterization of the Chandra Source Catalog . ... The first release of the Chandra Source Catalog (CSC) contains ~95,000 X-ray sources in a total area of ~0.75% of the entire sky, using data from ~3,900 separate ACIS observations of a multitude of different types of X-ray sources. ... In addition to these traditional catalog elements, for each X-ray source the CSC includes an extensive set of file-based data products that can be manipulated interactively. ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... des actualit†йs . ... des interviews, des portraits . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil Des sources hydrothermales fossiles sur Mars . ... Pour en savoir plus sur ces sources hydrothermales et la recherche de la vie sur Mars, guettez le prochain num†йro de "Ciel & Espace", en kiosque le 24 novembre. ...

... Third International Symposium UNIVERSAT-2009: UNIVERSITY SATELLITES IN SPACE SCIENCES EDUCATION is canceled . ... With great regret we have to inform you that the Third International Symposium UNIVERSAT-2009: UNIVERSITY SATELLITES IN SPACE SCIENCES EDUCATION scheduled to take place 28 September, 2009 - 4 October, 2009 in Moscow, Russia, has been canceled by the Organizing Committee. ... On behalf of UNIVERSAT-2009 Organizing Committee, . ...

This module provides information on server activity and performance. ... Compatibility: Available in Apache 1.1 and later. ... ExtendedStatus To enable status reports only for browsers from the foo.com domain add this code to your httpd.conf configuration file <Location /server-status> SetHandler server-status Order Deny,Allow Deny from all Allow from .foo.com </Location> . ... A machine-readable version of the status file is available by accessing the page http://your.server.name/server-status?auto . ...