Supernovae are simply stars which explode. ... To understand supernovae, we need to understand stars. ... In this stage our Sun will swell up hundreds of times its current size, swallowing the Earth, and glowing hundreds of times brighter than it is now. ... Stars more than 10 times the mass of our sun have much more exciting lives. ... A Type II supernova to be precise. ... Since 1995 two teams have been discovering these objects: Our team, the High-Z SN Search, and the Supernova Cosmology Project. ...

... arfgen (arfgen-1.73.3) [?? ... This can result in a 6% dead-time effect for full frame mode. This has been taken into account in the exposure time in the spectrum header for files created with pipeline versions greater than 20010618 but wasn't catered for in earlier pipeline runs. arfgen checks the PPSVERS keyword in the file header and applies the correction to the output ARF if the pipeline version is older than 18 June 2001 and if the parameter modelootcorr is set to true (the default). ...

... What was needed was a complementary instrument consisting of an array of detectors designed to map the clouds using the signals emitted by the molecules in the gas. Such a facility, offering simultaneous spectroscopy and imaging, is currently being commissioned on the JCMT. ... ACSIS was built by the Dominion Radio Astrophysical Observatory in Penticton, Canada, and the UKATC. ... HARP/ACSIS can map molecular gas in molecular clouds throughout the Universe rapidly and with great sensitivity. ...

. Computer Ephemeris. Sidereal time. Explanations. Each row contains at 0h of Universal time: month, day, real sidereal time (hours, minutes, seconds), mean sidereal time (only seconds, as a rule, hours and minutes are the same as in real time) and nutation in right ascension: long periodic (with periods greater than 35 days), and then short periodic (periods less than 35 days). Standard IAU 1980 nutation theory is used.

... The IB_MAG5 magnetic conjugations with the others Spacecraft . ... ASCII file description | Plot description | ... ASCII file | real time plot . ... The IB_MAG5 magnetic conjugations with the groundbased magnetic observatories . ... The magnetic mapping polar diagram, and ASCII files for each decade of month: . ... ASCII files description | Back to the IB_MAG5 Home page. Updated 19 October, 1999 . ...

... Meteorite Boguslavka fall , October 18, 1916. ... By fear of such awful stories we will learn to do good and to keep God's commandments and then we will be blessed" - lamented the scribe as he entered a meteorite fall in Great Novgorod into the Tale of Years. ... The greatest among them were meteorite falls in Great Ustyug (1290), Great Novgorod (1421) and near the village of New Ergy (1662). ... The third and fourth seals show the cloud of stones covering Great Ustyug rocks falling onto the town. ...

... A star party is a gathering of amateur astronomers who set up their telescopes and observe the dynamic night sky. ... Star parties are best scheduled during first quarter and waxing gibbous Moon. During full moon, the moon is so bright it obscures a view of other celestial objects and even the Moon is best viewed when NOT full. ... We will consult local weather forecasters and make a decision by 2:00p on the day of the star party. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... For the first time I was in the Observatory (Crimea) . ... The University - my dream! ... 1995 October. ... Soros's fellowship for post-grads for the first time . ... 1998 April. ... I am included into the first list of ten prominent russian young scientists by the magazine "What is new in science and technology". ... Prize for young scientists of the Moscow State University. ... 2015 Short-listed for the national prize "For fidelity to science" as the best science popularizer (the 2nd at the end) ....

... Figure eight, as double four. Figure four, as half of eight. If you skate, you would be great, . If you could make a figure eight. That's a circle that turns 'round upon itself. One times eight is two times four. Four times four is two times eight. ... One times eight is eight, two times eight is 16 . Three times eight is 24, four times eight is 32 . ... Six times eight is 48, seven times eight is 56, . ... And ten times eight is 80, that's true. ... Plus two times eight: . ...

... Here is a brief outline of the current theory of the events in the early history of the solar system: . A cloud of interstellar gas and/or dust (the "solar nebula") is disturbed and collapses under its own gravity. ... The gas cools off enough for the metal, rock and (far enough from the forming star) ice to condense out into tiny particles. (i.e. some of the gas turns back into dust). ... Once the larger of these particles get big enough to have a nontrivial gravity, their growth accelerates. ...

Scale-heights of the Galactic disk subsytems with different ages and metallicities . V.Marsakov & Yu. ... It is based on the fact, that all stars cross the disk plane several times during their Galactic orbital period. ... We have used our representative sample of nearby disk F2-G2 stars Marsakov & Shevelev (1995) in which fundamental stellar parameters was determined on the basis of published date on uvby-photometry, proper motion and radial velocities. ... Marsakov V.A., Shevelev Yu.G. Bull. ...

Class 1 Introduction, Background History of Modern Astronomy The Night Sky, Eclipses and the Seasons Kepler's Laws Newtonian Gravity General Relativity Matter and Light Telescopes Class 2 Solar System Characteristics Formation Exosolar Planets Class 3 Stars The Sun Stellar Evolution of Low and High Mass Stars Deaths of Stars Exotic Stars Class 4 Galaxies Galaxy Classification Formation of Galaxies Galactic Evolution ... So far, one planet has been studied by this method. ...

... For SIMS (Secondary Ion Mass Spectrometry) analysis, a solid surface is bombarded by primary ions of some keV energy. ... The subsequent mass analysis of the emitted ions provides detailed information on the elemental and molecular composition of the surface. ... Extremely short ion pulses with a duration below . ... By rastering a fine-focussed ion beam over the surface, like an electron beam in an electron microprobe, mass resolved secondary ion images (chemical maps) can be obtained...

The small solids. Asteroids or the small planetes . ... The comets. ... Ceneca the Young.Procuring about the nature.63 y. The comet is a celestial body of a great size, but a rare one... transparent. Sometimes there seen a core and the medium forms a kind of a tail, beard or dishevelled looks. ... The core is an ice body - conglomeration of frosted gas and dust. ... The comet state is variable: ones have the con tails, others the dust tails, and the third have both. ... Meteors and meteorites. ...

... Educational programs (English) . Educational programs (Russian) . ... Pre-university education . ... Samara region . ... Samara State Aerospace University proposes to develop scientific and educational projects in the field of advanced space technologies together with developing countries. ... The University also took the initiative to hold in 2017 the United Nations Symposium in Samara, confined to the 60th anniversary of the space age beginning (launch of the first Earth satellite vehicle). ...

... Direct data transmission rate (Mbps) . ... the density of electron fluexs with energies in four bands from 0.04 MeV to 1.7 MeV; . ... sensor (TV, IR) data and heliogeophisical information (HGI) transmission to data receiving and processing centers at a rate of up to 2.56 Mbps; . ... 1.76 GHz - TV- and heliogeophysical information and DCLI's data transmission to data receiving and processing centers; . 7.5 GHz - TV- and heliogeophisical data transmission to data receiving and processing centers; . ...

ARCSAT maintenance and operations are supported by the Astrophysical Research Consortium and the staff at Apache Point Observatory. 082313: ARCSAT Upgrade Path . Primary Mirror Diameter: . ... Focal Ratio (with field corrector): . ... Equatorial (DFM Engineering) . ... Lower observing limit (current): . ... Tracking into the lower altitude limit is discouraged. ... DFM Telescope Control System - TCS (TBD) . Astronomer's Control Program - ACP (TBD) . ARCSAT Prototype guider in ACP ...

... Project page . ... Project workpage . Turbulence in the Multiphase Interstellar Medium . Project I | ... Project highlight | ... Towards simulating turbulence with adaptive meshes . ... A. Kritsuk, P. Padoan, M. Norman . ... A. Kritsuk M. Norman . ... A. Kritsuk, M. Norman, P. Padoan . astro-ph/0411626 | ... P. Padoan, A. Kritsuk, M. Norman, A. Nordlund . ... Introducing Enzo, an AMR Cosmology Application . B. O'Shea, G. Bryan, J. Bordner, M. Norman, T. Abel, R. Harkness, A. Kritsuk . ...

. Please, enter light elements for your star and Julian Day interval. HJD0: . Period: . JD1: . JD2: .

... Barbara Hubal . ... Hidden Hollow 2008 . ... May 2 - 4, 2008 . ... Barb's home club is the Richland Astronomical Society (RAS), where she is currently serving as club secretary. She's been into astronomy since 2002, when her husband Ken won a 6-inch Dobsonian telescope at a star party. ... Barb's been interested in Dobsonian telescopes, since she helped build a 6-inch f/8 Dob in 2005 for a local teenager. ... BDH/TJP 27-Jan-2008 ...