... Spacecraft . ... To space by cannon? Finally, the deep space explorers --spacecraft which break away from the Earth's gravity . ... The "Luna" series of the USSR conducted 7 soft landing of unmanned probes, two of them with wheeled robotic "Lunokhods," and two of those missions returned samples to Earth. Others spacecraft have visited the major planets of the Solar system. ... The Mariner series have explored Venus and Mars--and Mariner 10 even reached Mercury, for three separate encounters! ...

Еще в разделе: (Показать все результаты (>1632) - www.cosmos.ru/ )

• Seasons of the Year
• Trigonometry beyond 90 degrees
• The Answer Man--arranged by subject

... Are HVCs a common feature of star forming galaxies? ... Consider the typical properties of the smallest HVCs (compact HVCs) found in HIPASS: . Distance . HI Mass . ... At 5 kpc . meager objects ~116 solar masses . ... 1.15 x 10 4 solar masses . ... Putman et al. (2003) found none to 10 7 solar masses. 2% of Sculptor to 3 x 10 6 solar masses by de Blok et al. (2001) found none. ... High velocity gas around other galaxies can be identified from maps and dynamics: . ... 2003) . ...

Еще в разделе: (Показать все результаты (>5435) - www.naic.edu/ )

• Searching the Environment around LyAlpha Absorbers
• Galactic ALFA Surveys
• CIMA Frequently Asked Questions

An astronaut in low Earth orbit moves in (approximately) a big circle extending around the Earth. ... That can be interpreted as stating that in the astronaut's frame of reference, all bodies are subject to two forces, gravity and the centrifugal force, and the two are in perfect balance, adding up to zero. ... Wheel-shaped space . ... The science-fiction film "2001: A Space Odyssey" featured spinning space station, whose rotation provided the crew with "artificial gravity." ...

Еще в разделе: (Показать все результаты (>1129) - www.iki.rssi.ru/ )

• Newton's theory of "Universal Gravitation"
• FAQ: "The Great Magnet, the Earth"
• The Sun

... More on 51 Peg: . The discovery of a Jupiter--mass planet in orbit around the solar--type star 51Peg has been reported by Michel Mayor and Didier Queloz (Geneva Observatory) on October 6th at the 9th Cambridge workshop on "cool stars, stellar systems, and the sun" held at Florence (Italy). ... Recall that the measurements of radial velocity only yield v sin i which in turn gives us M sin i. For most values of i, sin i will be greater than 0.5 and this gives a mass estimate of 0.5 Jupiter masses. ...

Еще в разделе: (Показать все результаты (>444) - zebu.uoregon.edu/ )

• Digital Stellar Spectra

... Dark Matter Ring Modeled around Galaxy Cluster CL0024+17 . ... It is the relatively weak distortions of the many distant faint blue galaxies all over the image, however, that indicates the existence of the dark matter ring. ... A hypothesis for the formation of the huge dark matter ring holds that it is a transient feature formed when galaxy cluster CL0024+17 collided with another cluster of galaxies about one billion years ago, leaving a ring similar to when a rock is thrown in a pond. ...

Еще в разделе: (Показать все результаты (>8136) - www.sai.msu.su/ )

• APOD: 2011 July 14 - Neptune: Once Around
• APOD: December 23, 1998 - Ring Around the Galaxy
• APOD: 2015 August 11 - A Blue Moon Halo over Antarctica

... Space flight . ... Simulators . ... Space camp . Space Hotel . ... Virtual reality-based stand for ISS crew training is used for cosmonauts pre-training preparation at different stages of training for the space flight. ... At present cosmonauts and astronauts can work both with the SM and FGB images independently and having them in mated state. ... Info: Industry news On-line Data Company ATLAS news Events We in press Contact . Copyright 2000-2016 ATLAS Aerospace . ...

Еще в разделе: (Показать все результаты (>82) - www.atlasaerospace.net/ )

... If the Earth is round, the Sun must be north of the equator in northern summer, and south of the equator in northern winter. ... From the Earth's perspective, the Sun is spiraling from north to south and back again along the ecliptic (see figure 7 ). ... The round Earth, at the summer solstice. ... If the rotation axis of the Earth is tilted with respect to its orbit, the equator bobs back and forth, causing the Sun to be north for half the year, and south for the other half (see figure 9 ). ...

Еще в разделе: (Показать все результаты (>1230) - www.astrosociety.org/ )

• ASP: What If the Moon Didn't Exist?
• ASP: The Biggest Bang of Them All
• ASP: Up, Up, and Away

... Bad Astronomy . Misconceptions . ... Bad Astronomy : The Moon only shows one face to us because it is not rotating. Better astronomy : The Moon only shows one face because it is rotating, once every time it revolves around the Earth. ... Place the Moon model on the table about 30 centimeters (one foot) away with the X facing the Earth model. ... You'll see that to keep the X facing the Earth model, you have to rotate the Moon model as it goes around the Earth model . ... 2008 Phil Plait. ...

Еще в разделе: (Показать все результаты (>405) - www.badastronomy.com/ )

• Phil Plait's Bad Astronomy: Mad Science

... We have measured this "redshift" for the pink black holes, and allowed for it in our calculations. ... We see this effect in the emission from gas around these pink black holes, but it is far too small an effect to account for the pinkness. Thus the swirling motions of gas around or into the black holes cannot produc the colour. ... At first we thought that these things were normal blue black holes hidden behind clouds of interstellar dust, that absorbed the blue light and made them appear pink. ...

Еще в разделе: (Показать все результаты (>677) - www.mso.anu.edu.au/ )

• ASTR1001: Mountains and Atmospheres
• University Problem Based Learning Exercises for Teaching Astronomy and Physics

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . Asteroid 2010 SO16 and the Earth follow similar orbits around . the Sun. ... out a horseshoe shape in space, taking 175 years to go from . ... Asteroid 2010 SO16 takes 175 years to make the trip from one end of the horseshoe to the other. ... Currently, three other horseshoe companions of the Earth are known to exist but, unlike 2010 SO16, these linger for a few thousand years at most before moving on to different orbits. ...

Еще в разделе: (Показать все результаты (>2881) - star.arm.ac.uk/ )

• Stars Beyond Maturity
• Strong Gravity in the Vicinity of Supermassive Black Holes - by Eamon Scullion,
• aroundNorth

... Our everyday experience of the world around us is . ... An Inquiry-Based Classroom . I n our Everyday Classroom Tools project, we are seeking to immerse elementary school students in the Spirit of Inquiry, to help them begin to observe and learn from their experience. ... What the Everyday Classroom Tools project wishes to stress is that before there were encyclopedias, there were authors, and before there were scientific facts, there were curious people trying to explain the world around them. ...

Еще в разделе: (Показать все результаты (>2518) - hea-www.harvard.edu/ )

• The AstroStat Slog Blog Archive different views
• *qprotate* -- Rotate a QPOE image about the origin
• The AstroStat Slog Blog Archive loess and lowess and locfit, oh my

Next: The Scenario Machine: Operational Up: Evolution of Magnetic Rotators Previous: Ejector-propeller hysteresis . ... The length of this segment is determined by the eccentricity. ... In this case no hysteresis occurs and transitions E -- P and the reverse take place in symmetrical points of the orbit. ... Here EP means a mixed state of the rotator at which it is in the ejector state during one part of the orbit, and in the propeller state during the rest of the orbital cycle. ...

Еще в разделе: (Показать все результаты (>603) - xray.sai.msu.ru/ )

• Gravitational waves from supernova explosions
• Simple Universe
• Our wonderful group

... 8, ``Celestial Mechanics'', 2002 Precession and free core nutation of neutron stars A. Gusev, I. Kitiashvili Kazan University, Russia In 1992 Wolszczan and Frail discovered a planetary system around the pulsar PSR 1257+12 [1]. ... Third case: the most likely possibility is the free precession of the pulsar with a rigid 81 neutron star. ... It is known that rotation of the terrestrial planets having rigid mantle and elliptical liquid core is characterized by Free Core Nutation (FCN). ...

Еще в разделе: (Показать все результаты (>638) - www.ipa.nw.ru/ )

• http://www.ipa.nw.ru/conference/2002/sovet/PS/KARDASH.PS

... High-velocity clouds (HVCs) were discovered by Muller, Oort & Raimond (1963) in the 21-cm line emission of neutral, atomic hydrogen. They are gas clouds which are characterised by high radial velocities incompatible with a participation in the rotation of our Galaxy. ... This suggestion was seized by Braun & Burton (1999) who identified 66 compact high-velocity clouds (CHVCs) with positional and kinematic characteristics being compatible with a distribution across the entire Local Group. ...

Еще в разделе: (Показать все результаты (>20485) - www.atnf.csiro.au/ )

• Diffuse gas in and around the Milky Way - Programme
• PPTA Dashboard | Projects
• Binary Variable Star Questions

We present new images of the reflection nebula surrounding the R Coronae Borealis Star, UW Centauri. ... Instead, the morphology of the nebula appears to change as different parts are illuminated by light from the central star that is modulated by shifting thick dust clouds near its surface. ... In this way, the central star acts like a lighthouse shining through holes in the dust clouds and lighting up different portions of the nebula. ... ADS Citation Query . citations = 21 . ...

Еще в разделе: (Показать все результаты (>12834) - www.stsci.edu/ )

• Comets and Conserved Physical Quantities
• John H. Debes
• Tiny Tim Frequently Asked Questions

... A Blue Moon Halo over Antarctica . ... HCG 87: A Small Group of Galaxies . ... By planet Earth's calendar, the Curiosity Mars Rover reached its 3rd anniversary on the surface of the Red Planet on August 6. ... Full Earth, Full Moon . ... But on that date a million miles away, the Deep Space Climate Observatory (DSCOVR) spacecraft's Earth Polychromatic Imaging Camera (EPIC) captured this view of an apparently Full Moon crossing in front of a Full Earth. ... Virgo Cluster Galaxies . ...

Еще в разделе: (Показать все результаты (>108091) - www.astronet.ru/ )

... Asteroids are awkward to photograph. Can you imagine how hard it is to spot one of these tiny, dark lumps of rock against the blackness of our night sky? ... Like Earth, asteroids move around the Sun. ... But astronomers don t give up easily, and asteroids are something they really want to study. ... The asteroid in this photograph is called Itokawa. It became famous in 2005 when a Japanese spacecraft called Hayabusa visited it and took some photographs including this one! ...

Еще в разделе: (Показать все результаты (>66360) - www.eso.org/ )

• http://www.eso.org/public/news/eso1141/kids/
• http://www.eso.org/public/news/eso1320/kids/
• ESO - I want to process MOS data of the same target from different nights

Luna and Io - A Comparison Study . ... They will construct paper scale models of Io , Luna , Earth and Jupiter and use these models to explain the differences between the two moons. ... Explain to the students that the picture is not to scale, but that it represents Jupiter and one of its moons. ... Have the students divide into groups of three or four and construct scale models of the Earth/Luna system, and the Jupiter/Io system, using the facts on the data sheets. ... Jupiter, Io, Earth, and Luna . ...

Еще в разделе: (Показать все результаты (>7409) - www.arcetri.astro.it/ )

• Hubble Finds Oxygen Atmosphere On Jupiter's Moon Europa
• Educator's Guide to The Inverse Square Law
• High-resolution Herschel spectroscopy reveals the proto-planetary disk around

... Astrophysics Group . ... VSA . ... CAT . ... The Very Small Array is a custom-built radio telescope (operating between 26-36 GHz), designed expressly to make high resolution observations of the cosmic microwave background (CMB) radiation on angular scales around and below one degree. ... The VSA has been operated in ?compact array? and ?extended array? configurations (see the technical description below) and data collected to achieve high sensitivity in both regimes have been analysed. ... 1.75 GHz)...

Еще в разделе: (Показать все результаты (>1759) - www.mrao.cam.ac.uk/ )

• Astrophysics Group Research and Instrumentation
• Examples of Dave Green's `cubehelix' colour scheme
• OptInt PmWiki : PmWiki / Mailing Lists

... Great oppositions. ... Proxima Centauri. ... Scientists proved that the problem of preserving the Earth's climate and the annual change of seasons can be solved by a small star, negligible mass, but similar to a main-sequence star, moving in a circular orbit around the Sun. ... Sombrero Galaxy. The Sombrero Galaxy, M104, is known as a holder of one of supermassive black holes. ... Roughly estimate the approximate mass of the supermassive black hole in the center of M104 (answer in solar masses m). ...

Еще в разделе: (Показать все результаты (>902) - www.issp.ac.ru/ )

• http://www.issp.ac.ru/iao/apao/2014/problems/pages01-02_ap14_t_en_a.pdf
• http://www.issp.ac.ru/iao/2015/booklet/b11_ia15_p_en_b.pdf
• Rules and regulations for a participant