... January 4, 1997 . A Star Where Photons Orbit . ... Explanation : The above computer animated picture depicts how a very compact star would look to a nearby observer. ... From here one can either look down and see several duplicate images of the entire surface of the star, look up and see several duplicate images of the entire night sky, or look along the photon sphere and see the back of one's own head. Tomorrow's picture: Too Close to a Black Hole . ... About APOD > . ...

Еще в разделе: (Показать все результаты (>8207) - www.sai.msu.su/ )

• APOD: November 26, 1995 - A Star Where Photons Orbit
• APOD: 2004 September 26 - Looking Back on an Eclipsed Earth
• APOD: 2011 January 2 - Looking Back at an Eclipsed Earth

... Observers looking at an object that is moving away from them see light that has a longer wavelength than it had when it was emitted (a redshift), while observers looking at an approaching source see light that is shifted to shorter wavelength (a blueshift). ... By measuring the amount of the shift to the red, we can determine that the bright galaxy is moving away at 3,000 km/sec, which is 1 percent of the speed of light, because its lines are shifted in wavelength by 1 percent to the red. ... Part 2...

Еще в разделе: (Показать все результаты (>1799) - www.sao.ru/ )

• Getting the observations

... Tonight's Sky . ... Sky this Month . ... Star Atlas . ... stars . ... The Sky This Week: April 1 - 10 . ... Observing springtime deep-sky objects with a large telescope . ... Why do some stars appear to flash a variety of different colors when you look at them through a telescope? ... So, Earthт??s atmosphere will bend some colors from especially bright stars more so than others, which makes the source look like itт??s flashing colors. Get instant access to subscriber content on Astronomy.com! ...

Еще в разделе: (Показать все результаты (>6278) - www.astronomy.com/ )

• The year's Top 10: a deeper look | Astronomy.com

... 29a. Satellite looking up . 29c. Satellites probing around . ... The US Air Force furthermore sponsors polar satellites of the DMSP series, scanning the cloud cover of the polar region and also studying ions and electrons of the magnetosphere. ... The Canadian satellite Alouette in 1962 bounced radio signals off the top of the ionosphere, and UARS (Upper Atmosphere Research Satellite) has studied the Earth atmosphere. ... Next Satellite Class: #29c Those observing local conditions . ...

Еще в разделе: (Показать все результаты (>1224) - www.cosmos.ru/ )

• (S-7a) The Black Hole at the Center of our Galaxy
• Seasons of the Year
• Our View of the Sun

... August 30, 1999 . Looking Back on an Eclipsed Earth . ... Explanation: Here is what the Earth looks like during a solar eclipse. ... Only observers near the center of the dark circle see a total solar eclipse - others see a partial eclipse where only part of the Sun appears blocked by the Moon . This spectacular picture of the 1999 August 11 solar eclipse was one of the last ever taken from the Mir space station , as Mir is being decommissioned after more than ten years of productive use. ...

Еще в разделе: (Показать все результаты (>9092) - www.arcetri.astro.it/ )

• Star Formation Group of the Arcetri Astrophysical Observatory
• Fine Shades of a Sombrero (PR Photos 07a-c/00)

These include satellites which monitor the weather, such as the GOES series (one of which is shown on the right) of the US National Oceanic and Atmospheric Administration (NOAA). ... To this class also belong "spy satellites" which observe the ground from low circular orbits. ... The Canadian satellite Alouette in 1962 bounced radio signals off the top of the ionosphere, and UARS (Upper Atmosphere Research Satellite) is currently studying the Earth atmosphere. ...

Еще в разделе: (Показать все результаты (>724) - www.iki.rssi.ru/ )

• The Acceleration of the Aurora
• The Sun
• Rotating Frames of Reference in Space and on Earth

... The Sun . Does anyone know how many stars are there in the solar system? Come take a look at the Sun. See that? ... Did you know all the stars you see when you look up are inside our galaxy! ... Did you know that our Sun and solar system were born in a cloud of gas and dust like this. ... We're looking at a place where stars are being born. ... Sharing the Universe is based upon work supported by the Informal Education Division of the National Science Foundation under Grant no DRL-0638873. ...

Еще в разделе: (Показать все результаты (>1221) - www.astrosociety.org/ )

• ASP: The Face on Mars
• ASP: Guest Observer
• ASP: Using Multicultural Dimensions to Teach Astronomy

... NGC 7129 and NGC 7142 . ... This alluring telescopic image looks toward the constellation Cepheus and an intriguing visual pairing of dusty reflection nebula NGC 7129 (left) and open star cluster NGC 7142. The two appear separated by only half a degree on the sky, but they actually lie at quite different distances. ... Tethys, one of Saturn's larger moons at about 1000 kilometers in diameter, survived the collision, but sports today the expansive impact crater Odysseus. ... August . ...

Еще в разделе: (Показать все результаты (>102663) - www.astronet.ru/ )

This is the homepage of Andrew Fruchter, an astronomer on the staff of the Space Telescope Science Institute . ... Here you can look at an HST images of the optical counterparts of gamma-ray bursts and their host galaxies. ... Therefore, substantial information on the fine scale structure of objects can be obtained by offsetting the pointing of the telescope between exposures and then combining these "dithered" exposures into a single image. ...

Еще в разделе: (Показать все результаты (>16925) - www.stsci.edu/ )

• Windows on Orion
• User Guide for STIS Target Acquisition Simulator
• Observing with Linear Ramp Filters

... mar05: filter bank installed but left in wide band mode. 05apr05: 10db amps placed in pixel 2a,2b path in front of the filter bank. 08apr05: 10db amps placed in front of filter bank for all alfa pixels. 12apr05: 6db attenuators placed before 10db amps. 25apr05: 10db amps are now only in the OH filter bath. ... This allowed the search of the data taken by P2030 (100Mhz bandwidth, cfr 1420Mhz, 64usec samples) between 01feb05 and 01may05 for signals of the aerostat radar. ...

Еще в разделе: (Показать все результаты (>5773) - www.naic.edu/ )

• The CIMA Homepage
• T2874 meteors on moon.
• aostatus Observer's Display

... Under certain conditions, like those in the nucleus of a QSO, all atoms can be made to emit light at particular wavelengths. ... If that source is approaching the observer, the wave is squashed up onto itself making the wavelength shorter. ... This is redshift. ... You can see how the section of the QSO spectrum which we observe changes with redshift. ... We then see how far we had to slide the observed spectrum along the scale to make it match and that is the objects redshift. ... The 2QZ team . ...

Еще в разделе: (Показать все результаты (>7) - www.2dfquasar.org/ )

... Bad Astronomy . Misconceptions . ... But what if they make Bad Astronomy there? ... But they aren't; what looks like a flat painting of stars on a canvas is actually a three-dimensional tapestry of stars at varying distances, the least of which is still tremendously far away. ... Look at the constellation of Orion, shown on the left as seen from the Earth. ... You cannot simply travel a thousand light years to the "opposite side" of Orion, look back, and see it backwards (as shown on the right)! ...

Еще в разделе: (Показать все результаты (>491) - www.badastronomy.com/ )

• Phil Plait's Bad Astronomy: Bitesize Astronomy
• Phil Plait's Bad Astronomy: Bad News
• Phil Plait's Bad Astronomy: Bad TV

... Find the three stars of his belt and follow the line they make up the sky and you will meet Aldebaran, the brightest star in Orion?s neighbour, Taurus the Bull . ... A K5 III red giant about 350 times as luminous as our Sun, it appears as a red-orange magnitude 0.9 object in our sky. ... The name Aldebaran is derived from the Arabic for тАШthe FollowerтАЩ as the ancient Muslim astronomers saw it as trailing behind the Pleiades star cluster across the sky. ... Posted April 2, 2014 at 8:03 PM . ...

Еще в разделе: (Показать все результаты (>2789) - www.armaghplanet.com/ )

• Orion, mighty hunter of the winter sky | Astronotes
• Stargazing in June | Astronotes
• observing | Astronotes - Part 8

From: TerryMosel aol.com Date: 17 June 2007 02:27:17 Jun 2007 Subject: Young TV astronomers wanted; Venus Occultation on Monday Hi all, 1. ... VENUS OCCULTATION: On Monday 18 June the Moon will occult brilliant Venus, mag -4.4, at about 13.50 (14.50 BST). ... From Dublin, at 14.40 BST, the Moon will be at altitude 49њ , azimuth 134њ 51'; and Venus will be at essentially the same altitude, azimuth 134њ 39'. ... Venus will reappear from behind the Moon s bright trailing limb at about 16h 10m BST. ...

Еще в разделе: (Показать все результаты (>2650) - star.arm.ac.uk/ )

• The boot process in closer look
• Armagh | International Year of Astronomy in Ireland | Astronomy 2009
• Armagh Observatory

... The First (Experimental) International Astronomy Olympiad . The following olympic problems were proposed for the participants on the theoretical part: Grades 8-10 . ... Why is it sometimes better to use a small telescope in orbit around the Earth than it is to use a large telescope on a mountain top? ... What will an observer looking to the Moon through the telescope see? ... Paper with a drown circle and table of maximal elongations of Mercury and Venus had been done for participants. ...

Еще в разделе: (Показать все результаты (>905) - www.issp.ac.ru/ )

• II International Astronomy Olympiad, Problems to solve
• The International Olympiad of Euro-Asian Astronomical Society

ALBUM: SING-SONGS @ SONG : A_ Different _ Man Inside himself, He runs to look in the mirror And the face that stares right back Has never been any clearer But look at the doubt in his eyes He's not the one to blame It was a different man , no he's never been here You can be so close, you can be so near It was a different man , playing ...

Еще в разделе: (Показать все результаты (>4633) - crydee.sai.msu.ru/ )

• http://crydee.sai.msu.ru/ftproot/pub/rec/games/idgames/levels/doom/g-i/hss.txt
• http://crydee.sai.msu.ru/ftproot/pub/rec/music/lyrics/cs-uwp/f/faith.no.more/glory_box
• http://crydee.sai.msu.ru/ftproot/pub/rec/music/lyrics/cs-uwp/p/portishead/glory_box

... You are here: start €Ё lbaops €Ё lbafeb2009 €Ё vx014b . ... VLBI Schedule . ... Observer's Wiki . ... lbaops:lbafeb2009:vx014b . ... Ftp: ftp://ftp.atnf.csiro.au/pub/people/vlbi/vx014/vx014b . ... VT11: I tested whether any noticeable difference could be found between continuous CLCAL and CLCAL on a 1 minute average looking at a (single) strong source. ... Polarisation map of one of the sources Others in the same place. lbaops/lbafeb2009/vx014b.txt €§ Last modified: 2015/12/18 16:38 (external edit) ...

Еще в разделе: (Показать все результаты (>28226) - www.atnf.csiro.au/ )

• VLBI Wiki | Main / P483ObservingNotes
• ATNF Media Release - December 1, 1998
• VLBI Wiki | Main / RtFCRunning

... Over the past 16 years, astronomers have found more than 700 planets outside of our Solar System. We call these distant worlds exo-planets . ... For example, they can observe how a star dims when a planet passes in front of it. ... In this new method, astronomers use stars like magnifying glasses! ... And astronomers can tell if the star that is acting like a magnifying glass has a planet in orbit around it, as the power of the magnification is even greater! ...

Еще в разделе: (Показать все результаты (>20981) - www.eso.org/ )

• AdelePlunkettAstro
• ESO - The calibration data for my observations look strange. Can you confirm
• Olivier Hainaut

Lectures . ... тАЬOther Ways of Looking for Life in the SkyтАЭ ? Freeman J. Dyson . ... Lecture Series 2011-2012 . ... Dr. Freeman J. Dyson, one of the nationтАЩs most renowned physicists, and professor emeritus at the Institute for Advanced Study in Princeton, N.J., will open the AAAтАЩs 2011-2012 lecture series Friday, October 21, when he speaks on тАЬOther Ways of Looking for Life in the Sky.тАЭ The free public lecture begins at 6:15 p.m. in the Kaufmann€аTheater of the AMNH. ...

Еще в разделе: (Показать все результаты (>620) - www.aaa.org/ )

• AAA Winter Astronomy Class: Measuring Distances in Space тАУ Dec 2015 тАУ Feb
• Lecture Series 2015-2016 ? Amateur Astronomers Association of New York
• Astronomy Workshop: Observing Variable Stars from the City ? February 15, 2015

... Meade Instruments Corporation . ... Choosing the Right Microscope . ... On most microscopes the specimen glass remains fixed while the microscope's objective lens and eyepiece move as a unit up or down to focus the image. ... Eyepieces of varying powers work with objective lenses of varying powers to yield a range of microscope magnifications. ... Magnification: The effective magnification of a microscope is determined by multiplying the eyepiece power by the objective lens power . ... about meade |...

Еще в разделе: (Показать все результаты (>2483) - www.meade.com/ )

• Meade Instruments Corporation - Pictor Manual Part 13
• Meade Instruments Corporation - Sun Warning
• Meade Instruments Corporation - Pictor Manual Part 16