. Album : Фотоальбом Сергея Аюкова :: Travels to distant places and countries :: 1996/05 Greece, Chalkidiki :: Village Kallithea. The "8th European Meeting on Solar Physics" was held there. Up . << Prev . You probably get bored to see hotel again :-) But actually, there wasn't much interesting around :-) . Next >> . Photo album generated by photo album generator from MarginalHacks by Dave Madison on Wed Jun 5 20:38:31 2013 .

Various types of stars have dust around them. In the well known case of the Pleiades the dust around the stars is unrelated to the stars, and is instead dust from an interstellar cloud that the Pleiades cluster has drifted into on its way through the galactic disk. ... The dust in interstellar space is observed in a variety of ways: due to its passive absorption of starlight ("extinction"), by its production of polarization in starlight, and then at long wavelengths due to its thermal radiation. ...

... With enough velocity, a spacecraft can break loose from the Earth's gravity and enter an orbit around the Sun, like that of a planet. If it then orbits the Sun with the same period as the Earth--one year--it may keep a fixed position relative to Earth. ... If the distance is just right--about 4 times the distance to the Moon or 1/100 the distance to the Sun--the spacecraft, too, will need just one year to go around the Sun, and will keep its position between the Sun and the Earth. ...

... Estimates made from distance, brightness and standard solar models had given one star in the open cluster Pismis 24 over 200 times the mass of our Sun, nearly making it the record holder. ... A dark Sun hung over Queensland, Australia on Wednesday morning during a much anticipated total solar eclipse. ... As the Moon moves to completely cover the Sun in a total solar eclipse -- like the one set to occur over parts of Australia on Tuesday -- beads of bright sunlight stream around the edge of the Moon...

... With enough velocity, a spacecraft can break loose from the Earth's gravity and enter an orbit around the Sun, like that of a planet. If it then orbits the Sun with the same period as the Earth--one year--it may keep a fixed position relative to Earth. ... If the distance is just right--about 4 times the distance to the Moon or 1/100 the distance to the Sun--the spacecraft, too, will need just one year to go around the Sun, and will keep its position between the Sun and the Earth. ...

... Your main research interests concern neutral hydrogen. ... That means that there must be enormous quantities of gas lying around, waiting for the chance to collapse under its own weight into lumps and form stars and galaxies. If we could actually observe this gas, as it moves around and assembles itself into lumps, we would be directly observing the process of galaxy formation. ... Optical astronomers seem to think that they can observe galaxy formation by taking optical images. ... In galaxies. ...

... A wordlwide network of amateur and professional astronomers record and time the mutual eclipses and occultations of the Galilean satellites as accurately as possible. ... Already, the acceleration of Io is evident in the data and continued monitoring through this coming season will help pin down the acceleration of the other three satellites. ... From Dr Apostolos Christou, Armagh Observatory: . ... If you want to know the observing times from your location get it by filling in this form . ...

12feb07 Measuring the SEFD around 1100 Mhz . ... bandpass filter low frequency falloff around 1130 Mhz . ... A 500 Mhz bandpass centered on 1100 Mhz (via the spectrum analyzer) showed a 6 db difference between 1100 Mhz and the noise floor at 1000 Mhz. ... The interim correlator was used with 25 Mhz bands centered at: 1040, 1060, 1080, and 1100 Mhz. ... 1040 Mhz cfr trking src(.gif) There is probably not very much sky signal getting into this band so it looks better than it should. ...

... So it s funny that the object in this new space photograph looks so much like a flame, from the white-hot centre, to the rising red clouds. ... This object is a nebula (a cloud of cosmic gas and dust) and on top of looking like a flame, it also acts like one. ... Like the scorching core of a flame, the hottest part of this nebula is the bright region at the centre where a crowd of massive young stars are hiding. ... There appears to have been many episodes of star birth within this cloud. ...

So the evidence for Dark Matter is fairly overwhelming. ... Theory: if the Universe is closed then all the luminous matter seen in galaxies contributes only 0.5% of the mass required to eventually halt the expansion . ... This means that galaxies are surrounded by dark matter halos which trapped baryonic gas (e.g. hydrogen) and turned it into stars. ... WIMPS - weakly interacting massive particles created in the extremely early universe . ... Theory 99% of the Universe is Dark Matter . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Solar System . ... Moon . ... Comets and Asteroids . ... What changed our view of Chariklo is the discovery of a ring system around it, the first such feature found around a Solar System body smaller than a gas giant planet. ... Almost certainly the rings were born when a collision with a smaller asteroid blasted millions of tonnes of debris off CharikloтАЩs surface. ... A ring system detected around the Centaur (10199) Chariklo (Braga-Rigas et al.) ...

... Bad Astronomy . ... Bitesize Astronomy . ... Last week's Snack talked about how black holes can affect the environment around them in such a way as to be very bright . ... It's a common misconception that black holes always have matter swirling into them. ... As this matter gets closer and closer to the black hole it piles up and a large, fairly flat disk forms. This is called the accretion disk , because matter from this disk accretes (that is, falls in) on the black hole. ... 2008 Phil Plait. ...

... 2014 August 13 . Rings Around the Ring Nebula . Image Credit: Hubble , Large Binocular Telescope , Subaru Telescope ; Composition Copyright: Robert Gendler . ... There is much more to the Ring Nebula (M57) , however, than can be seen through a small telescope . ... The Ring Nebula is about 2,000 light-years away toward the musical constellation Lyra . Follow APOD on: Facebook , Google Plus , or Twitter . ... About APOD | ... NASA Official: Phillip Newman Specific rights apply . ...

Thursday, April 2, 2015 Tech o con Discussion Attending: Alaina, Mark, Bill, Joe, John Wilson, Fritz, Suzanne, Conor, Alysha - STA sent the test report of our detector. ... Overall, Joe is happy with the results. ... We will do our own full-well and linearity tests, up to 65,000 counts. Can we ask them to test up to 65,000 counts? ... Open the dewar, take everything out, remove old chip, insert new chip. ... All done in the clean room. ... Joe will ask Connie and Jim. ...

... 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 . ...

Bigbang Forum Message . Forums: . ... Post . ... That's Interesting.. ... Post Message | ... Posted by Bruce on November 23, 2005 21:35:29 UTC . ... I don't have much knowledge about the models you're discussing [my excuse for not answering your query, though it does make sense from my limited perspective]. ... www.astronomy.net . About Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... When the Voyager 2 spacecraft flew by the planet Uranus in January 1986, astronomers were treated to their first close-up glimpse of the satellites that orbit the seventh planet. ... But by far the most intriguing of those 15 satellites was a jigsaw-puzzle world called Miranda . ... How dark was it at Miranda? One of the Voyager scientists put it this way: Taking pictures in the Uranus system is like trying to do photography in a ballpark at night when the only light comes from a single candle. ...

... How much brighter is the Sun as viewed from the planet Mercury as compared to Earth ? ... Actually, all of these questions can be answered through a very simple mathematical relationship known as the inverse square law. ... As the distance from the Sun increases the surface area of the sphere grows by the square of the distance. ... Common sense tells us that the Sun will be brighter and the inverse square law tells us how much brighter. ... gr = 0.912 G or 91.2% gravity felt at Earth's surface. ...

A group of British teenagers visited our school. ... This year meeting with British girls was more interesting and exiting, because we have already had one previous experience. ... We made friends with Liz and Emma. They were shy but at the end of our meeting they laughed and became sociable. ... Our friends study in a school for girls but on the other side of the road there is a boy's school. The girls wear brown uniform but, actually, both Liz and Emma hate it. ...

The angular power spectrum of the anisotropy of the CMB contains information about the formation of the Universe and its current contents. ... The image above shows an all-sky map with only ell=2 power on the left, and another map with only ell=16 power on the right. ... The current status of microwave background anisotropy measurements in my compilation from the literature has 95 data points from 25 experiments. These are all plotted in the figure below: . ...