... Basic Observables: Zero-differenced phase and code ionosphere-free combinations of global GNSS network stations, corrected by P1-C1 satellite code biases (cc2noncc), daily observations with 30 seconds sampling rate Sites coordinates : IGb08 reference frame coordinates and velocities Displacements: solid tides, ocean loading, pole tide loading (IERS 2010) Geometric model : Receivers antennas eccentricities, absolute receiver and ...

Marc White . ... Turbulent entrainment processes may play an important role in the outflows from young stellar objects at all stages of their evolution. In particular, lateral entrainment of ambient material by high-velocity, well-collimated protostellar jets may be the cause of the multiple emission-line velocity components observed in the microjet-scale outflows driven by classical T Tauri stars. ... University of Amsterdam; STARPLAN, Copenhagen, Jul 2013 . ... E marc.white@anu.edu.au . ...

... Sun . ... Our Galaxy . ... Stars . ... Artist's impression of the red dwarf star CHRX 73 A and its companion object CHRX 73 B. The companion object is around 12 Jupiter masses, and may either be a planet or a brown dwarf. ... In Astronomy-speak, red dwarfs are low-mass stars; our own Sun is 2.5 times as heavy as even the biggest red dwarf. ... In our galaxy, the Milky Way, red dwarfs are the most common type of star . ... Tweets that mention Red dwarfs: The most important stars in the Universe | ...

... The greater the distance, the smaller the parallax. ... That triangle has the same proportions as the much larger triangle ABC, and therefore, if the distance B'C to the thumb is 10 times the distance A'B' between the eyes, the distance AC to the far landmark is also 10 times the distance AB. ... The most distant objects our eyes can see are the stars, and they are very far indeed: light which moves at 300,000 kilometers (186,000 miles) per second, would take years, often many years, to reach them. ...

... Kepler stars and planets are bigger than previously thought . ... In a new study using the National Optical Astronomy Observatory s (NOAO) Kitt Peak National Observatory Mayall 4-meter telescope, observations of a large sample of stars with candidate planets identified by the NASA Kepler mission have revealed that many of the stars, and hence their planets, are actually somewhat larger than originally thought. ... Only registered members of Astronomy.com are allowed to comment on this article. ...

Main Program Travel Where to go in Moscow Information . ... The 2014 year marks the 100th anniversary of Yakov Zeldovich . ... John Carlstrom (University of Chicago) . ... Lyman Page (Princeton University) . ... The conference will be held at the Space Research Institute (IKI) in Moscow, Russia, on June 16-20, 2014 . ... International Conference: Cosmology and High Energy Astrophysics (Zeldovich-90) 20-24 Dec 2004, Moscow, Russia . ... 2014 Space Research Institute, Moscow Русская версия ...

Peremennye Zvezdy", . ... V348 Aql, USNO-B1.0 0904-0422027 . ... Meinunger (1966) classified it as an eclipsing binary with a period very close to 1 day, noting however that the period and derived minima times were uncertain due to the low variability amplitude. As of July 2011, the O C gateway (Paschke Brat 2006; Paschke 2009) lists, in addition to Meinunger's photographic data, 2 visual and 3 CCD times of minima from Paschke (1988, 1996, 2006), Stepan (1995), Br t et al. ... Meinunger (1966) . ...

... Fitting the observed dependence includes calculations of the polarization cross-sections averaged over particles orientation and size distribution, their normalization and the comparison of obtained dependencies with Serkowski's curve representing observational data for a chosen star. ... Variations of the polarization factors with wavelength are shown in Fig. 16 for homogeneous spheroidal particles with PF orientation. ... The distinction between prolate and oblate spheroids is also clearly seen. ...

... Cheers, -Mike Data Providers (e.g., data centers, archives) Provider Name: NOAO Collection: High Resolution Atlas of Arcturus Spectra - 0.92-5.36 microns Characteristics: 310 ASCII tables of wavenumber vs flux Storage Format: Text tables Available online: ftp://ftp.noao.edu/catalogs/arcturusatlas/ir Comments: Tables contain three flux values (arcturus spectrum, telluric spectrum and ratio) for both summer and winter observations. ... Linelists also available as text table ...

To list commands from the history list: fc -l 27 34 . This lists commands 27 through 34 from the history list. ... To edit a command from the history list: fc -e emacs 32 . This will start the EMACS editor together with the contents of command number 32. You can then edit the command and exit the editor to run the command. To edit several commands from the history list: fc -e vi 27 35 . ... You can then edit the commands and exit the editor to run the commands. ...

THE 1999 PROJECT . The 1999 Martian Mission project is a further development of the 1988 project. It uses the results of design, research and testing activities that took place at RSC Energia since 1988. As compared with the previous project, changes were introduced into solar array panels which became modular, into lander shape where lifting body was replaced with a "discus", and into the number of the landers, with two landers - a manned lander and a logistics lander - instead of one. ...

PUBLICATION AGREEMENT AND COPYRIGHT ASSIGNMENT Astronomical Society of the Pacific (ASP) Conference Series - 2009 With regard to the original and previously unpublished paper entitled: (add name of manuscript here) By: (add names of all authors here) which has been accepted for inclusion in the proceedings of: "Science Education and Outreach: Forging a Path to the Future." ... If all the authors are in this category, please check here and return the form unsigned. ...

Communications For Your Astronomy Event . Articles | ... GMRS has been around for many many years. ... If you are reading this you probably do not care about the old school and are only interested in what GMRS has to offer for your basic communication needs. ... However, you really only need to pay attention to the "Well Known Channel" the radio manufacturers like Cobra, Uniden, Midland, etc. seem to have agreed on. ... Channel . ... 462.5625 MHz . ... 5.0 Watts . ... www.astronomy.net . ...

... participations . in IAO & APAO . ... Participation permitted in both a and b groups . Participation permitted in b group only . Participation not permitted . ... Dr. Michael G. Gavrilov, Founding Chairman and Coordinator of the Asian-Pacific Astronomy Olympiad (APAO) . ... Institute street 2, 142432 Chernogolovka, Moscow region, Russia. URL: http://www.issp.ac.ru/iao/apao/2015/ . ...

Photon Scattering: Basic Principle of Photon Scattering . Audio Narration is available . No Scattering: Photon Source and Detector . ... For optical photons, scattering goes as wavelength to the -4 power. In the case of blue photons compared to red photons, this means that blue photons are about 10 times more likely to get scattered than red photons. ... Watch the blue photons scatter away from the detector . ... Interstellar dust make stars appear redder than they really are . ...

... 9a. Earth orbits Sun? . ... 10a. Scale of Solar Sys. ... If the mean distance of Earth from the Sun is 1 AU ("Astronomical Unit"), then that of Venus is 0.723 AU, of Mercury 0.387 AU and that of Mars is 1.524 AU. ... By noting (1) where on the Sun's disk is the crossing seen, (2) timing its duration at two far-apart points on Earth, and (3) comparing the times, one can calculate the distance to Venus and from it the scale of the solar system. ... One occurred in 1639--too early. ...

... Editor's choices for the most educational Astronomy Pictures of the Day about neutron stars: . ... Observations by the Hubble Space Telescope have been combined with previous observations by the X-ray ROSAT observatory and ultraviolet EUVE observatory for the isolated star at the location of the arrow. ... APOD: 1998 April 25 - Supernova Remnant and Neutron Star . ... These X-ray images from the orbiting ROSAT observatory may offer a premier view of such a recently formed neutron stars' X-ray glow ....

. Information for database users . Go to previous page . Description and abbreviations (minor planets) . Description and abbreviations (planets and satellites) . Information about observations . List of publications .

... 1000 – 1004 . Radar Investigations of Comets . ... The review of results of all six previous radar observations, as well as an analysis of forthcoming close approaches of known short-period comets with Earth for the next 25 year interval indicate the evidence of potential possibility of episodic researches this objects by means of upgraded bistatic radar system Evpatoria (70-m dish, 6-cm power transmitter) – Effelsberg (100-m dish, two-channel low-noise receiver). ...

Authors: Yu.G. Shevelev , V.A. Marsakov , . ... Based on a previously compiled catalog of fundamental astrophusical parameters for nearby disk F stars (containing, in particular, metallicity, isochronal ages, and space-velocity components), with were derived from published astrometric data, the Galactic orbital elements were calculated for 1630 stars. ... The radial and vertical metallicity gradients were found for mixed-age stars and for a few narrow age ranges. ...