... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Risks Comparable to NEOs . ... The Increasing Rate of Discovery of Asteroids . ... Comet and Asteroid Collision Probabilities . ... Extreme albedo comets and the impact hazard (PDF Format) . ... Asteroid Impact Animations . ... Workshop on Scientific Requirements for Mitigation of Hazardous Comets and Asteroids - 2002 . ... The Spaceguard Survey Report, 1992 (PDF) . Tsunami from Asteroid/Comet Impacts . ...

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... Next: Object Detection Using Up: Object Detection and Previous: Automated Classification of . ... A status report of the The GSC Object Classifier (GOC) project is presented. ... The GSC contains multiple entries for some objects due to plate overlap. It classifies objects as stars, non-stars, galaxies, blends and potential artifacts; the latter three classifications are rare, and only exist in GSC version 1.1, to which they were added manually. ... star, . ... non-star, . ...

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• Object Detection Using Multi-Resolution Analysis
• Modern CCD Observations of Moving Celestial Objects: Algorithms and Software
• Object Detection and Classification

Astronotes Armagh Planetarium's Stellar Blog! ... Armagh Planetarium . ... Our Galaxy . ... Stars . ... Space Flight . ... This activity is believed to be promoting the unusually high rate of star formation seen in M82. ... Radio image of M82 made with the MERLIN and VLA telescopes. Insets show MERLIN images from April 25th and May 3rd 2009 demonstrating the sudden appearance of the mystery object.€а All images are at a frequency of 5 GHz. ... Mystery object in Starburst Galaxy M82 . ...

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• galaxies | Astronotes
• - Part 14
• Astronotes | Armagh Planetarium's astronomy news from across the Universe -

... For the past years I have been working on the problem of synthesis of light curves of close binary systems, consisting of a normal star and a compact object (point object with fixed X-ray luminosity). ... Possible existence of a bright spot on the disk's lateral surface is taken into account. ... The last of then will be published in Gordon and Breach Publishers ( Cherepashchuk A.M., Katysheva N.A., Khruzina T.S., Shugarov S.Yu. ... Cherepashchuk A.M., Katysheva N.A., Khruzina T.S., Shugarov S.Yu. ...

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• Eugene Trunkovsky
• The Database of Close Binary Systems
• Elena Seifina

КОСМИЧЕСКИЙ КАЛЕНДАРЬ ЯНВАРЯ 2000 ГОДА . ... Jan 01 - Year 2000 . Jan ?? ... Jan 01 - Asteroid 1996 AX1 Closest Approach To Earth (0.702 AU) . ... Jan 03 - Asteroid 3745 Petaev Closest Approach To Earth (1.862 AU) . ... Jan 05 - Asteroid 1999 VO11 Near-Earth Flyby (0.218 AU) . ... Jan 08 - Comet P/1998 VS24 (LINEAR) Closest Approach To Earth (2.915 AU) . ... Jan 12 -[Image][Dec 02] Asteroid 1999 WA2 Closest Approach To Earth (1.100 AU) . ... Jan 14 - Mercury Occults 53 Sgr (6.9 Magnitude Star) . ...

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... Asteroid . ... In case you didn't hear about it, which you probably didn't: On Jan. 7, an asteroid 1,000 feet across -- nearly three times the current diameter of Marlon Brando -- barely missed the Earth, which is most likely your planet of residence. ... What if this asteroid had hit the Earth? ... As it happens, the American Astronomical Society was holding a conference in Washington AT THE VERY SAME TIME as the asteroid nearly hit the Earth. ...

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Pulkovo NEO Page . ... EPOS Software Package . ... EPOS ( E phemeris P rogram for O bjects of the S olar system) is the Windows PC application for study and ephemeris support of observations of the Solar system objects. ... It controls the part of common data and transfers the control to one of the programs that solve the restricted set of tasks. ... So with the EPOS software package one can calculate the accurate ephemerides for many objects and get the quick illustration of their motion as well. ...

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The picture above was made with this demo POV file and this pen object POV file . ... The cap and pen are separate objects; put together in their default orientation, the pen is "closed". ... The "clip" of the cap is rounded on the inside, and tapers to a point, and also tapers away from the pen, just like the real object. ... The cap is 0.18 units in diameter, the little ridge is 0.197 units in diameter, and the clip extends up to 0.26 units above the central axis. ...

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• The AstroStat Slog Blog Archive [ArXiv] A fast Bayesian object detection
• Tom's POVRay Disc Magnet
• Very Low Mass PMS Objects

Next: Non-classified objects Up: Non-emission-line objects Previous: Absorption-line galaxies . To separate the stars among the objects missing detectable emission lines we cross-correlated a list of the most common stellar features with the observed spectra. In total, 13 objects with definite stellar spectra and redshifts close to zero were identified. Four of them are obvious K or M-stars. ... Andrew Ugryumov . 2000-02-08 ...

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• Closing down
• Group IAG
• Object Search and Classification

Microsymposium 34, MS047, 2001 SOME PROBLEMS OF THE EVOLUTION OF ASTEROIDS ­ RUBBLE PILE. ... Evidently, we can distinguish two processes: distant interactions, where there is no direct contact between separate fragments, and close contact interactions, where the fragments collide with one another. ... Such a rubble pile with a dust atmosphere differs from a cometary nucleus only in the absence of a volatile gas component, which is usually considered the cause of the appearance of cometary dust. ...

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• http://selena.sai.msu.ru/Bus/Publications/ACM08(Bus).pdf

SAI 175 anniversary . ... Moscow University . Search for in SAI Moscow University Search for in Russian astronomical resources . ... SAI Astronomical Databases . ... Browse SAI Software archive(ftp.sai.msu.su) . ASTRONET.RU - Russian Astronomical Network (available in translit also) . ... SAI Supernovae Research Group . ... Department of the Galaxy and Variable Stars (in Russian) . Sternberg Astronomical Institute Seminars . ... All-Russian Astronomical Olympiad (in Russian) . ...

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• Kuiper-Oort
• APOD: 2000 January 17 - V4641 Sgr: The Closest Black Hole Candidate
• Astronomical Names

APOD: 2004 August 27- The Sedna Scenario . ... Credit Copyright: R. Hurt ( SSC-Caltech ), JPL-Caltech , NASA Explanation: The discovery of Sedna ( aka 2003 VB12 ), the most distant known object orbiting the Sun, presents a mystery . ... Instead, they find it more likely that Sedna resides in its present orbit because of an encounter with another star . ... Alternatively Sedna could have formed of material from another system entirely, captured during an early encounter with a much smaller star . ...

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• APOD: 2004 August 27- The Sedna Scenario
• Астронет > APOD: 2004 August 27- The Sedna Scenario
• Астронет > Микролинзирование

... A tussle in the distant Universe. This Hubble Space Telescope image shows evidence for a merger between a quasar and a companion galaxy. The quasar is the bright object just beneath the image center, and the wisps of material around it are remains of a galaxy disrupted by the interaction between it and the quasar. ... Galactic Nuclei: Old Quasars? Quasars as Probes of the Distant Universe . ... Quasars. ... The name quasar is made up with parts of the words "quasi-stellar radio." ...

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• ASP: Monster Comet Promises Big Show
• ASP: Making Your Own Astronomical Camera
• Astronomical Society

... Radiation mechanisms of astrophysical objects: classics today . ... Photos (Monday, 10/21/2015, Plenary Talks, opening of the Sobolev-100). Photos (Tuesday, 10/22/2015, at the Sections). Photos (Wednesday, 10/23/2015, at the Sections). Photos (Thursday, 10/24/2015, at the Sections). Photos (Friday, 10/25/2015, Plenary Talks, closing of the Sobolev-100). Photos (Friday, 10/25/2015, excursion to Konstantin palace, Strel'na). ... Conference program . ... Photogallery . ...

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• Key dates | Radiation mechanisms of astrophysical objects: classics today
• Conference venue | Radiation mechanisms of astrophysical objects: classics...
• A Nature of Polar-Ring Candidate Galaxy ZGC 2315+03

... no comet has been observed with an orbit that indicates that it came from interstellar space, . ... From this he proposed that comets reside in a vast cloud at the outer reaches of the solar system. ... Unfortunately, since the individual comets are so small and at such large distances, we have no direct evidence about the Oort Cloud. ... T he Kuiper Belt is a disk-shaped region past the orbit of Neptune roughly 30 to 100 AU from the Sun containing many small icy bodies. ... Small Bodies .. ...

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• Astronomical Names
• Seeing the Solar System
• The Principle of the Rocket

The Database of Close Binary Systems . ... Team . ... This web-based interactive database is being developed and maintained by a team at the Sternberg Astronomical Institute of the Moscow State University . The project is an on-line extension of our catalogue on "Highly Evolved Close Binary Stars" (volumes I, II) published by Gordon and Breach in 1996. As of September 2009, the database (both the software and the content) is in its development/testing phase. ...

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After the first six months of commissiong of NICS, we recognize the necessity of a new mechanics for the lens of LF camera objective. ... After these mechanical revisions we planned to test the camera in conditions of operativity, putting it in a dewar used for test and controlling alignment by interference of laser beam reflected at the surfaces of the lenses. ... Pattern od interference at room temperature. ... Pattern at about 150 K. Pattern at 100 K after another shift of 0.25 mm . ...

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• Client-Side JavaScript Guide
• Accretion disks in luminous young stellar objects
• Educator's Guide to Eclipses

STScI . HST . ... Missions . ... Data . ... Hubble Heritage Project . ... Research . ... HST Overview . Overview . ... The Faint Object Spectrograph (FOS) was one of the 4 original axial instruments aboard the Hubble Space Telescope (HST). ... Consequently, FOS observations can no longer be requested, and only Archival Research programs to make use of FOS data may be submitted. ... All FOS data have been recalibrated by ST-ECF and were ingested into the STScI HST Archive in the summer of 2004. ...

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• Variable Evolved Stars and Young Stellar Objects Discovered in the Large
• FAQ on FOC Filters and Objective Prisms
• Astronomical Catalogs

... Bad Astronomy . ... Bitesize Astronomy . ... If you thought our tour of the solar system ended with Neptune and Pluto, you are setting your sights way too low. The planets of the solar system mark time relatively close to the Sun compared to interstellar space. Pluto orbits the Sun at an average distance 40 times that of the Earth, yet the nearest star (the Alpha Centauri system) to the solar system is a mind-numbing 260,000 times the distance of the Earth to the Sun. ... 2008 Phil Plait. ...

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• Phil Plait's Bad Astronomy: Bitesize Astronomy
• Phil Plait's Bad Astronomy: Info
• Phil Plait's Bad Astronomy: Mad Science

. Previous slide . Next slide . Back to first slide . View graphic version .

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• Mass Feeding and Feedback in Young Stellar Objects
• Siding Spring Survey
• Key formulae