... A Meteor Shower Fireball Movie . ... Tonight is the peak of the month-long Perseid Meteor Shower . Although visible every year at this time, the Perseids are expected to appear particularly active this year due to the relative absence of glare from the Moon during the peak. ... That fireball was captured by a digital recorded over Wise Observatory during the 2001 Leonid Meteor Shower. ... Publications with keywords: Perseids - meteor shower . Publications with words: Perseids - meteor shower . ...

... 2015 November 15 . Leonids Over Monument Valley . ... Explanation: There was a shower over Monument Valley -- but not water. Meteors. ... The yearly Leonids meteor shower peaks again this week. Although the Moon's glow should not obstruct the visibility of many meteors, this year's shower will peak with perhaps 15 meteors visible in an hour, a rate which is good but not expected to rival the 2001 Leonids . By the way -- how many meteors can you identify in the featured image? ...

Astronotes Armagh Planetarium's Stellar Blog! ... Space Flight . ... Earth Satellites . ... Leonid meteors seen from 13 km altitude aboard an aircraft during the 1999 Leonids Multi-Instrument Aircraft Campaign (Leonid-MAC). Comet Tempel-Tuttle provides the cometary debris for the Leonid meteor shower. ... Every 17-19 November Earth crosses Tempel-TuttleтАЩs orbit and the Leonids become visible. With clear, dark skies observers may see 10 to 15 Leonid meteors every hour on those mornings. ...

... The TRACE images may be used without restrictions in publications of any kind. ... These two images, taken on 18 November 2000 at 15:54UT and 16:11UT, respectively, show such an event: the red circle in the image to the left shows a region where many loops are cooling, with bright loop tops (the intensity scales with the square root of the image to reduce the dynamic range). ... See also a collection of images related to the Sun, other cool stars, and solar-terrestrial effects . ... Images | ...

... Observing . ... Leonid meteor shower peaks mid-November . During November, the Leonid meteor shower will produce up to 15 meteors per hour. ... Although the Full Moon that occurs on the same day as the Leonids peak November 17 will diminish the view, 15 meteors per hour still will radiate from the constellation Leo the Lion. ... Annually, the Leonid meteor shower deposits 12 13 tons of material across the planet. ... Only registered members of Astronomy.com are allowed to comment on this article. ...

... 2 April 1999 . The Nobeyama Radioheliograph data show that in the microwave range, besides large-scale trans-equatorial chains (see, e.g., the May 11-15, 1993 and November 1-4, 1993 events), there are also many examples displaying large and strongly evolving "longitudinal" or "internal" chains connecting remote active regions inside an active zone in one (northern or southern) hemisphere (the August 20-September 3, 1998 event). ... Last update: 2 April 1999 . ...

The broad background peak of activity of this year's Leonid meteor shower is expected to occur around dawn on the 17th November. ... It is anticipated that rates will be up to about 50 meteors per hour for a few hours around peak activity, under ideal conditions. ... According to Armagh Observatory astronomer, David Asher, and co-workers, there will be two additional peaks of activity after the broad stream peak. ... Leonid Meteor Pages . The unexpected 2004 Leonid meteor shower - PDF Format . ...

... 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. ...

The 2175 ц… absorption bump, a feature often ascribed to graphite grains and ubiquitous in the spectra of sight lines through the Galactic diffuse interstellar medium, is generally weak or nonexistent for objects outside our Galaxy. ... Recently, it was suggested that the spectrum of the high-ionization broad absorption line QSO UM 425 shows a 2175 ц… feature. This apparent feature seen in UM 425 and the rest frame spectra of other QSOs is intrinsic to the QSO spectrum. ... ADS Citation Query . ...

... Observatory . ... Science . ... Science Users Information > Data Handling and Products > Data Reduction FAQ > My data shows an extended, bright feature - what can this be? ... Observing Facilities . ... Observing with ESO Telescopes . ... Science Data Products Forum . ... ESO Data . ... You might also want to check http://www.eso.org/sci/observing/PublicSurveys/useful_links/OmegaCAM_images.html where we provide a collection of example OmegaCAM images, illustrating some special data features. ...

Ganymede is the largest moon in our solar system, larger even than the planets Pluto and Mercury. ... Ganymede's surface consists of two main types of terrain: old, dark polygonal units, and young, bright valleys and ridges (see figure 11 ). ... In a similar way, hitting a large block of ice with a hammer makes white marks. ... Ganymede as seen by Voyager 2. ... Because Voyager couldn't spot any large impact craters, scientists have concluded that the moon's surface is young. ... Moon . ... Europa . ...

... You are here: start €Ё lbaops €Ё cdiskodevel . ... Cdisko . ... Recorder Server . ... Current recording disk hilite should only happen when current recording host is selected (ie if remote host changed) . ... JS: cDisko now has a тАЬRecording InformationтАЭ window that lists settings used for the current recording and also displays the disk currently being recorded to. ... For eVLBI and remote recording have a list of predefined (from host based config file) remote hosts (plus port, TCP window etc)....

... Sun images . ... Active areas . November : 2015 . ... The following regions with sunspots can be now observed on the Sun's surface . Group number . ... Group length (in degrees) . ... Beta . ... Coordinates and other characteristics of active regions are issued for November 09, 2015 00:31 UT The following H-alpha plages without spots can be currently observed on the Sun's surface . ... Coordinates and other characteristics of active regions are issued for November 09, 2015 00:31 UT . ...

... We publish 16 Doppler imaging temperature maps for the years 1994-2002 of the active RS CVn star II Peg. ... Through Doppler imaging we want to study the spot evolution of the star and in particular compare this with previous results showing a cyclic spot behaviour and persistent active longitudes. ... The derived temperature maps are quite similar to the ones obtained earlier with a different methods, the main differences occurring in the spot latitudes and relative strength of the spot structures....

Home About Meade Product Information Dealer Locator Customer Support Investor Relations Dealer Support Employment Opportunities Site Map . Meade Instruments Corporation . ... Meade Pictor XT-Series CCD Autoguider/Imagers . ... The status bar provides tool tips for each menu item, communication status information, the current x and y coordinates of the mouse on the active image, and the temperature of the CCD chip. (left to right): . ... File Save: Saves the current active image. ... about meade | ...

New England observer Lew Gramer, fresh back from his mid-November fish observing and meteor-catching expedition in South Florida, reports that December also promises to be a great month for celestial sky-sparks!" ... Other showers adding to the mix this month include several very minor showers, such as the Chi Orionids (3 Dec), Monocerotids (9 Dec) and Sigma Hydrids (12 Dec), which usually contribute no more than 2 or 3 meteors per hour during even post-midnight observing this month. ...

... The picture shows sketches of the optical and ultraviolet (top, left) and X-ray (top, right) spectra of a typical quasar or AGN (Active Galactic Nucleus). These spectra are full of sharp features due to the interaction of atoms with light ('atomic features'). They can be high (= bright) points, called 'emission lines' or low (= dark) points, called 'absorption lines' . ... Broad Emission Lines ("BELs") [seen in 100% of AGN], . ... Broad Absorption Lines ("BALs") [see in only 10% of AGN], . ...

... We have measured radio flux densities of BL Lacertae ( B2200+420 ) with the RATAN-600 radio telescope at 4.8, 7.9, 11.2 and 21.7 GHz during 6 October - 20 November, 2012 to study the detected ( ATel #4557, #4565, and #4568 ) flare. ... On 12 November flux density had notably risen to 8.30 +/- 0.19 Jy at 7.7 GHz, to 9.86 +/- 0.09 Jy at 11.2 GHz and to 11.70 +/- 0.3 Jy at 21.7 GHz. ... The spectral index changed from -0.08 +/- 0.02 to +0.23 +/- 0.02 at 11.2-21.7 GHz for October to November flux points...

XMM-Newton CCF Release Note XMM- CCF -REL-171 RGS Instrumental Flourine Absorption A.M.T. Pollock June 24, 2004 1 CCF components Name of CCF VALDATE List of Blocks changed XSCS ag RGS1 EXAFS 0004 1999-01-01T00:00:00 MgF2-P-CCD1 NO MgF2-P-CCD2 MgF2-P-CCD3 MgF2-P-CCD4 MgF2-P-CCD5 MgF2-P-CCD6 MgF2-P-CCD7 MgF2-P-CCD8 MgF2 ... Identical RGS1 and RGS2 data were analysed with response matrices with and without improved instrumental absorption by MgF 2 provided by the new RGS EXAFS CCFs. ...

... About meteorites . ... Meteorite Dronino . ... New iron meteorite shower found! Meteorite Encyclopedia . ... About laboratory . ... Dronino iron meteorite . ... Mr. Gus'kov felt that further efforts by Milanovsky were likely to be unsuccessful, so he searched further and found our Meteorites Laboratory. The Laboratory's analysis showed that the Dronino Iron has a meteorite origin. ... Dronino is the 111th meteorite and only the third iron-meteorite shower found in Russia in the last 250 years. ...