... This was seen in the 1290 radar and the FAA 1350 MHz radar. A radar acts like a sine wave in the band. ... 11jun08 sitting at az,za = 288.8,11.3 .1 second sampling, 8192 channels, 172 MHz band centered at 1325 MHz. 12jun08 sittting at az,za=278,8m13, .01 second sampling, 8192 channels, 172 MHz band centered at 1345 MHz. ... Page 1: 11jun08, .1 second spectra averaged over 1 second. The Band is centered at 1325 MHz. The 1350 radar is offset 25 MHz from the center of the band. ...

... Tonight's Sky . ... Observing . ... Star Atlas . ... stars . ... Astronomy for Kids . ... Picture of the Day . ... Observing springtime deep-sky objects with a large telescope . ... What causes spikes around stars in pictures, and how can I prevent them? ... Get instant access to subscriber content on Astronomy.com! ... If you are already registered on Astronomy.com, please log in below. ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

. Aurora on 6 January 1998 (Dick Hutchinson ©) .

The Wanderer (E. Maresca 1961) When I'm the type of guy who will never settle down Where pretty girls are will you know that I'm around I kiss'em and I love'em ' cause to me they're all the same I hug'em and I squeeze'em they don't even know my name They call me the wanderer - yeah -the wanderer I roam around around around ...

Astronotes Armagh Planetarium's Stellar Blog! ... Colin Johnston . ... Our Galaxy . ... To locate it, look along the imaginary line between the two end stars on the leading edge of the PloughтАЩs blade (Merak and Dubhe) and Polaris (the North Star), the galaxy M82 (also known as the Cigar Galaxy) along with its companion M81, lies just off this line about a third of the way between the Plough and Polaris. ?а?аAs usual, the supernova is far brighter than its home galaxy, appearing as an extra star. ...

Blackholes2 Forum Message . ... Distant Galaxy Red Shift Caused By Time Passage Variation. ... If I were falling toward a neutron star or a black hole, a distant galaxy would seem to be accelerating toward me? ... And apparent receding distant galaxies with a red shift. ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

Astronomy Picture of the Day . A Blue Moon Halo over Antarctica . ... 11.08.2015 . ... Credit Copyright: LI Hang Explanation: Have you ever seen a halo around the Moon? Such 22 degree rings around the Moon -- caused by ice crystals falling in the Earth's atmosphere -- are somewhat rare. ... What is featured above might therefore be considered doubly rare -- a halo surrounding a blue moon. ... August 2015 . ... Publications with keywords: Moon - halo . Publications with words: Moon - halo . ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Time-Slice image in H тАУ 0.8 ? showing the ribbon associated with the surge-like event, the rising filament and its eruption as a dark feature. Bottom: H + 0.8 ? ... We study a sequence of eruptive events including filament eruption, a GOES C4.3 flare and a coronal mass ejection. ... and H + 0.8 ? ... We establish that the filament destabilisation and eruption are the main trigger for the flaring activity. ...

... Artist?s conception of the collision of Comet Shoemaker-Levy 9 with Jupiter, as seen from the Galileo spacecraft. At the time of the first impact, the comet fragments will be much farther apart than shown in this illustration. ... One orbit, computer May 18, 1993 by Syuichi Nakano, showed that the comet passed close to Jupiter in July 1992, and would pass within 45,000 kilometers of the center of Jupiter in July, 1994. ... The fragments of Shoemaker-Levy 9 move around Jupiter. ...

What's New in Views of the Solar System . ... Mars Icosahedraon Added . ... Rotation Earth Movie . Europa Rotation Movie . ... Color Rotation Tethys Movie . Rotation Tethys Movie . ... Rotating Mars Movie . ... Animation: Io Rotation Movie . ... Rotating Moon Animation . ... Animation of Janus, The Rotating Moon of Saturn . ... Two excellent animations of Mars' moons Phobos and Deimos were added on 9/3/97. ... A high-resolution mosaic image of Phobos , a moon of Mars, was added on 7/8/97. ...

... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . ... The subject here is a relatively nearby star with the unassuming name of Beta Pictoris (commonly called "Beta Pic" for short). About 15 years ago, Beta Pic was found to be encircled by a nearly flat disk of dust, large enough to be resolved using ground based telescopes. ... One thing it can do is take very high resolution images, in a sense zooming in on the very inner regions of the disk around Beta Pic. ... 2008 Phil Plait. ...

Phases of the Moon Phases of the Moon are not caused by the Earth's shadow. They are due to a change in our viewing perspective as the Moon orbits around us as it is lit by the Sun. ... The Earth spins in the light, so that the entire Earth gets to be lit at some point each day. Even though the Moon is always half-lit like the Earth is, sometimes we on the Earth see only a tiny bit lit, other times completely lit, depending on where the Moon is in its orbit around the Earth. ... Look at Day 7. ...

. Search this album . Gallery . :: Stromlo before the 2003 fires . :: Norm Banham's pictures of Mount Stromlo . :: One way to get around Stromlo . Sidebar Left . Sidebar Top . No Sidebar . Sidebar Bottom . Sidebar Right . View full size . Title: One way to get around Stromlo . File name: ss0045.jpg . Owner: Gallery Administrator . Dimensions: 1280 x 804 px . Page: 1 2 17 18 19 20 21 22 23 24 25 26 . Powered by Gallery 3.0.9 (Chartres) . Login

Next: The Plan Up: No Title Previous: No Title . On the afternoon of 19 October 1999, it was discovered by John Briggs that the secondary mirror in the 2.5m SDSS telescope had developed a series of circular cracks around its axis of symmetry. As the telescope had not been in use since the early morning of 16 October 1999, there was a great deal of concern and consternation as to what caused these fractures in the glass. ... 11/24/1999 ...

Jupiter's volcano-pocked moon Io has been found by NASA's Galileo spacecraft to have a giant iron core that takes up half its diameter, scientists report in today's issue of Science magazine. The spacecraft also has detected a large "hole" in Jupiter's magnetic field near Io, leading to speculation about whether Io possesses its own magnetic field. ... Galileo scientists also are trying to determine the cause of the hole they found in Jupiter's magnetic field when the spacecraft was closest to Io. ...

... An analysis on new observational data taken with the MPFS and SCORPIO spectrographs indicates that we are dealing with the "galactic wind": the gas is blown above the galactic plane with the characteristic velocity of about 130km/s. The gas outflow is caused by a combined action of winds from the supernovae and young massive stars located in the galaxy's circumnuclear region. ... The most probable hypothesis is that the accretion of intergalactic gas clouds is feeding their star formation. ...

. Next: Scintillation Up: Velocities Previous: Interferometry .   . Position error gives sinusoidal residuals . Changing error adds linear amplitude variation .     . Figure 30: The timing residuals caused by the proper motion of PSR J0437-4715 . Jon Bell . Thu Dec 19 15:15:11 GMT 1996

... Well, there are at least a million times more galaxies in the Universe than there are human beings! ... These newcomers are bigger and brighter than anything else in space, and if that wasn't interesting enough, they also glow bright green! This has led astronomers to name them 'green bean' galaxies (look at the little green bean-like spot in the middle of this space picture). ... We think that they shine so brilliantly because of a black hole at their centre. ...

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... 1 Least square fit over 6 year sliding window Gabor transform Expected ratio of () = - ~6 around 7 d i Synthesis Ї NIB pressure term O1 explained by tidal equilibrium model: clearly a lunar effect Ї At 13.6 d expected ratio works for IB (over continents) pressure term ; at 7 d expected ratio works for NIB (full) pressure term Ї Proportionality wind / pressure term is consistent with 2 facts Lunar tesseral ...