... Be Stars . ... Stellar Winds . ... He had found the first emission line star. ... More emission line stars were found soon, and one had to make subclasses to keep some overview. Cas is a main sequence B-type star, and together with other such stars showing hydrogen emission it forms the class of "Be stars", where the "e" stands for emission. ... Struve further speculated that those stars would be surrounded by a disk, basically thrown off the stellar surface by the rapid rotation. ...

... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . ... Site Info . ... It is from from Voyager 1 and shows a whopping big impact crater dominating the profile of the moon. Note that Mimas is about 400 kilometers across (about 250 miles). ... The wall around the crater is 5 kilometers high, and that central peak rises 6 kilometers above the surface (many impact craters have a large central peak which is caused by a pressure rebound from the impact). ... 2008 Phil Plait. ...

Estimating the NEO Population and Impact Risk: Past, Present and Future . ... Since most of the risk resides in the largest impactors, finding that fraction of the largest bodies, and that none of them has a significant chance of impacting in the next century or so, "retires" more than 90 % of the impact risk, including most of the risk of a globally catastrophic impact event. ... In the mid-size range, from ~150 m to ~1 km, the main risk is from tsunami generated by an ocean impact. ...

... ATNF Home . About ATNF . ... About ATNF overview . ... Australia Telescope Steering Committee . ... The Optical Counterparts to Galaxies in the Cen A Group Discovered by HIPASS . ... This group of galaxies was recently the subject of a separate and thorough optical survey (CУДtУ? et al. 1997), and thus presented an ideal comparison for us to test the survey performance. ... Six of the new members are previously uncatalogued galaxies, while four were catalogued but assumed not to be group members. ...

GRANAT is the Russian x-ray sattelite launched to the high apogee orbit (200,000 km) and operated almost for 10 years (1989 -1999) , carrying out four major instruments: French SIGMA coded-mask hard x-ray telescope (30-1000 keV), Soviet ART-P coded-mask telescope (2??-60?? keV), all-sky monitor WATCH (6-150 keV), and a gamma-burst detector PHEBUS . ... Since September 1994, GRANAT is in the survey mode. ... Explore pages devoted to individual GRANAT instruments (including main scientific results): . ...

... We have compared visualized fields of GSC and USNO A1.0 catalog with unpublished photographic finding charts that were sent by L. Plaut to the compilers of the GCVS. ... 7-15 A9 --- GCVS GCVS or NSV name 17-25 F9.4 --- GSC GSC number 26 A1 --- NoteFlag *Nonstar (GSC) flag 28-29 I2 h RA2000GSC.h Hours RA (GSC), equinox 2000.0 31-32 I2 min RA2000GSC.m Minutes RA (GSC), equinox 2000.0 34-38 F5.2 s RA2000GSC.s Seconds RA (GSC), equinox 2000.0 40 A1 --- DE2000GSC.- ... Plaut, L., 1966, Bull. ...

... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... Company's History . ... ISS Russian Segment . ... Sea Launch . ... News . ... In accordance with the mission plan of the International Space Station (ISS) and Russian commitments under this international project, a manned transportation spacecraft Soyuz TMA-09M was launched from Baikonur launch site at 00:31:24 Moscow Time. ... RSC Energia: Progress MS-02 docked with the ISS.' ... 2015 JSC "S.P. Korolev RSC "Energia" . ...

... Feeding the Monster: Gas Caught in its Death Spiral into a Massive Black Hole . ... Stromlo Professor Mike Dopita have used the Hubble Space Telescope to discover how a massive Black Hole in a nearby galaxy feeds itself. ... Earlier Hubble Telescope data obtained by another team member, Professor Holland Ford of Johns Hopkins University in Baltimore, Maryland, had found a disk of gas rushing around the Black Hole at a speed of 500 kilometers a second. ...

Тема : Обсерватория СОХО (SOHO), SolarMonitor и SDO, все о Солнце .. Показать сообщение отдельно . ... Re: Обсерватория СОХО и все о Солнце . ...

... Electricity had gone commercial. ... One company, Tinytron was run by a very smart man named John Doors. ... He started buying up other appliance companies that had the best appliances, and sold those appliances himself (but only the versions that worked with his own power grid). ... They were so good at manipulating electricity, that they could tailor their power grid and television set to work well together in ways that Setscape couldn't (because Setscape didn't have a power grid). ...

... The SN 1998bv discovered on April 6, 1998 in the blue compact galaxy HS 1035+4758 is the second supernova observed in a low-mass galaxy with intense SF burst. ... According to its characteristic spectrum, SN 1998bv is a type II supernova with estimated peak absolute brightness M 16.3. The very slow fading of its brightness suggests that the SN was discovered at the Plateau phase, 20-30 days after the peak of the light curve. The most probable classification of SN 1998bv is regular SN II-P. 3. ...

JSC scientists have their names in the stars By Cathy Watson and Kendra Ceule M arilyn Lindstrom is #5281, David McKay is #6111 and Mike Zolensky is #6030. ... Several past and present Johnson Space Center employees have been among those people honored with asteroid names, including the following: Don Bogard: asteroid name `Bogard,' #4794 Bogard, Chief Scientist for Research on Astromaterials for the Astromaterials Research and Exploration Science (ARES) office, has worked at JSC since 1968. ...

... Passed the church and the steeple, the laundry on the hill Billboards and the buildings Memories of it still keep calling And calling But forget it all I know I will Tempted by the fruit of another Tempted but the truth is discovered What's been going on Now that you have gone There's no other Tempted by the fruit of another Tempted but the truth is discovered I'm at the carpark, the airport, the baggage carousel The people keep on grabbing, ain't wishing I was well I said, "It's no occasion. ...

... Structure of Data . ... Catalog . ... In SAI OCL Catalog, we introduce our work on investigation of the Milky Way system of open star clusters. The main goal of our study is a search for new clusters using huge surveys. 168 new clusters have been already discovered by us using J,H,Ks data from 2MASS point source catalog. ... For 141 new clusters, we found their physical parameters using J,H,Ks data from 2MASS catalog and, for a number of clusters, our UBVRI CCD observational magnitudes. ...

Signs Constellations Of The Zodiac . Articles | ... The band of the zodiac is some sixteen degrees wide, extending about eight degrees north and south of what's called the ecliptic -- the Sun's path through the stars. ... Since that time, the March equinox Sun has shifted about thirty degrees westward through the constellations of the zodiac. ... While signs neatly extend eight degrees north and south of the ecliptic, aligning with the borders of the zodiac, constellations do no such thing. ...

... Astrophysics Group . ... MRAO Telescopes . ... A radio telescope consists of one or more directional receiving aerials connected to very sensitive amplifiers. Since radio wavelengths range from millimetres to about 10 metres, the actual form of the aerials can vary greatly; many are parabolic dishes with very precise surfaces, while others, like the Cambridge Low-Frequency Synthesis Telescope (right), are similar to television aerials. ... Information provided by webmaster@mrao.cam.ac.uk . ...

Электронная библиотека астронома-любителя. ... библиотека . архив RSN . ... Ru.Space.News: . Март 1998 . ... Дата: 26 марта 1998 (1998-03-26) От: Alexander Bondugin Тема: STARDUST Update - March 20, 1998 Привет всем! ... TELEPHONE (818) 354-5011 http://www.jpl.nasa.gov Galileo Europa Mission Status March 25, 1998 NASA's Galileo spacecraft is sending to Earth the final pictures and science information stored on its onboard tape recorder during the December 1997 flyby of Jupiter's moon Europa. ...

... Observing . ... Solar Observing . ... April 3 (SUN) - Solar Observing, Central Park , Manhattan . ... APRIL'S SKY . ... Lecture Series at the American Museum of Natural History The Amateur Astronomers Association is proud to present an astronomy lecture series from October through May each year for our members and the .. ... The€аAmateur Astronomers Association of New York€аwas organized in 1927 to promote the study of Astronomy, emphasizing its cultural and inspirational value. ...

... GALAXY: A galaxy is made up of billions or trillions of stars bound together by their own gravity. ... HELIUM (He): The second element in the periodic table, has 2 protons, 2 neutrons, and is a noble gas. ... Helium melts at -272.2 degrees Celsius, and boils at -268.934 degrees Celsius. ... HYDROGEN (H): The first element on the periodic table, is a gas, and has an atomic mass of 1.00794 amu. ... Hydrogen melts at -259.34 degrees Celsius, and freezes at -252.87 degrees Celsius. ...

Guest Editorial , July 2006 . Past ? Present ? Future . ... SETI, the quest for reasonable signals from Space, is aimed at the Past. ... From here on Earth, we can say with good reason that conducting both searches (SETI) and transmission (METI) of reasonable signals, we appear poised just halfway between the Past and the Future: namely, in the Present! ... This editorial was submitted in response to Their Past, Our Future , by SETI League executive director emeritus H. Paul Shuch. ...