... 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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• Meteor showers at Mars
• Inner Solar System Animation
• Near Earth Object Maps

M1 image More About M1 Nice Color Picture . ... M16 image More About M16 HST image . ... M31 image More About M31 Nice Color Picture . ... M42 image ; M43 image More About M42/43 Nice Color CCD Picture . M51 image More About M51 Color Image of M51 M51 Supernova . M57 image More About M57 Nice Color CCD Picture Very Deep M57 Image . ... M81 image More About M81 M81 Supernova Ultraviolet Image of M81 More about Ultraviolet Imaging . M82 image More About M82 M82 False Color M82 True Color . ...

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... The remote planet Pluto and its moon Charon orbit the Sun at a mean distance of almost 6,000 million kilometres, or nearly fourty times farther out than the Earth. During a recent investigation by an international group of astronomers [1], the best picture ever of Pluto and Charon [2] was secured with the European Space Agency's Faint Object Camera at the Hubble Space Telescope (HST). ... The new HST image was taken when Charon was near its maximum elongation from Pluto (0.9 arcseconds). ...

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• Comet Halley
• Identifications and Efficiency
• The past, present and future appearances of the Refsdal supernova | ESO

... Since I do not work on YSO research these are not a concern for me, but the spectra show a wide variety of features. This particular spectrum shows silicate dust absorption features at 10 and 18 microns, plus narrower absorption bands due to different types of ices (water, CO, CO 2 ). ... Finally at upper right is shown an ISO spectrum of another PPN candidate object, and in this case one sees both crystalline silicate dust and the aromatic/UIR features in the spectrum. ...

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• Observation Opportunities During Leonid Shower
• Bright Object Artifacts
• HST Spectral Maps of Accretion Disks in Cataclysmic Binaries

... Radiation mechanisms of astrophysical objects: classics today . ... we invite you to submit papers based on your plenary, review or contributed talks or posters presented at the conference "Radiation mechanisms of astrophysical objects: classics today" to its Proceedings to be published by Armenian Academy of Science in 2016. Please note that participants who prepare the regular papers for the special issue of JQSRT on radiative transfer, etc. are also invited to submit papers to the Proceedings. ...

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• Slide shows and posters | Radiation mechanisms of astrophysical objects:
• Conference poster | Radiation mechanisms of astrophysical objects: classics
• Abstract book | Radiation mechanisms of astrophysical objects: classics today

... Up: Data Analysis and Processing Techniques . ... Also, a method for quality control of CCD observations is suggested. ... Everyone who observes a celestial object using a CCD detects moving celestial objects as a ``by product''. ... We hope that our investigations may be useful for near-Earth space control and also for searches of the moving celestial objects through analysis of old and new CCD frames obtained at any amateur or professional astronomical observatory. ...

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• System Interfaces to the STIS Calibration Pipeline
• Grid OCL : A Graphical Object Connecting Language
• Imaging by an Optimizing Method

... Each point shows the 1 sigma photometric errors and the time span covered by the data; the dotted lines are the 3 sigma limits of each image. ... The solid thick lines are a fit obtained from a K-corrected, time-dilated SNIb light curve at z= 0.95 with tmax=34.0, E(B-V)=0.04 and omega=0.1. ... The three images on the left are the total HDF-N images by Williams et al. 1996 with a pixel scale of 0.04 arcsec/pixel. ... Each image is labelled by the filter and the time range of the observations in days....

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• Kuiper Belt Objects
• K-band Arcetri Obscured Supernova Search - Detected Supernovae
• A universal physical relation for quasars

The picture above was made with this demo POV file and this hand shower object POV file . This is three objects: a hand shower head, a wall mount bar, and a connecting hose. This is one of my least detailed objects; there's not even a clip to mount the hand shower to the sliding bar, it just floats. The hand shower itself does look pretty stylish, very rounded and cool looking. ... The showerhead is about yay big. ... WARNING: This POV object is based on a real object. ...

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• Tom's POVRay Thermastatic Shower Valve
• Tom's POVRay Shower Curtain Rod
• Tom's POVRay Wall-Mounted Magnifying Mirror

... Team . ... All the results we present were obtained with the SCORPIO instrument mounted at the 6-m telescope of SAO RAS. TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1090 SUBJECT: GRB001109, Host Galaxy Spectroscopic Observations DATE: 01/09/08 07:28:47 GMT FROM: Vladimir Sokolov at SAO RAS <sokolov@sao.ru> . ... TITLE: GCN GRB OBSERVATION REPORT NUMBER: 1092 SUBJECT: GRB001109, Host Galaxy Astrometry DATE: 01/09/11 08:19:24 GMT FROM: Vladimir Sokolov at SAO RAS <sokolov@sao.ru> . ...

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• Search for distant radio galaxies in SAO
• Laboratory of spectroscopy and photometry of extragalactic objects :MOUSER
• Results scientific researchs 15

Peremennye Zvezdy ( Variable Stars ) 30 , No. ... We present our discovery of a new dwarf nova USNO-B1.0 1257-0089884. The object showed superhumps, which establish that it is an UGSU variable star. ... During observations of the field of SAO 57626, we discovered a new SU UMa dwarf nova USNO-B1.0 1257-0089884 (Kryachko and Prokopovich 2009). ... The finding chart, based on the POSS-II plate taken on JD 2447497, is presented in Fig. ... Fig. ... The superhumps of USNO-B1.0 1257-0089884. ...

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• XWare > APOD

Next: Conclusions Up: The Hamburg/SAO Survey for Previous: Non-classified objects . ... Since the main goal of the HSS is an efficient search for new BCGs, the fraction of this type among all new detected ELGs - 84 %, or 80 % among all emission-line objects, is very encouraging. ... Thus a large fraction of BCGs relative to all ELGs is found ( 78 %) demonstrating the high efficiency of this survey to find on the Hamburg Quasar Survey photoplates namely galaxies with H II -type spectra. ...

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• Selection method
• Results and conclusions
• Non-classified objects

The Status window shows the status of the telescope and (on unix and Windows) contains TUI's menus. ... The top panel shows user-specified information about the current target and also the progress of slews: . Name : object name . Obj Pos1/2 (e.g. RA/Dec): net object position. including object and arc offsets. ... Object Arc Off: the current object arc offset . Object Arc Off X,Y: the current object arc offset rotated to instrument xy coordinates (this may vary if the field rotates). ...

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• lsst.tcc: tcc.cmd.showObject Namespace Reference
• TUI:Telescope:Sky Window
• TUI:TUI Menu:Log Windows

... The Galactic low-mass X-ray binary GS 2023+338 was discovered during the burst on May 22, 1989 with the Japanise satellite Ginga (aka Galaxy). The flux reached 17 crabs (this unit of flux measurement is an bright X-ray source, Crab Nebula) at 10-35 keV. ... No other radio telescope worldwide carried out multi-frequency measurements. ... Upon 14 days the radio flux fell below the detection level at the RATAN-600 in relation to the decrease of the X-ray flux. ...

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• RCJ0311+0507
• Detection of Radio Transients and Variable Radio Sources Using the Archive Data
• Lack of Dwarf Galaxies in the Local Volume Compared to Conventional Cosmology

SAS home . ... You will find the period of a variable source and create a folded light curve of the object . ... We will run SAS and XRONOS . In pink is marked what you have to type at the command line or some useful scripts. ##########################script to extract a timing event file form ODF################################ . ... or ... setenv SAS_DIR /sas/Linux/RedHat9/sas6_1_0 . ... source $SAS_DIR/sas-setup.csh ... setenv SAS_ODF /SAS_Workshop/Timing/PSRB1509 . ... setenv SAS_CCF ccf.cif . ...

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• Suppression of detector noise at low energies

... 2015 . ... Observations using the Arecibo S-band (2380 MHz, 12.6 cm) planetary radar system started in 1976 and its power and sensitivity were greatly improved with the telescope upgrade and Gregorian-dome installation in the mid-1990s. Below, we show the number of near-Earth asteroids attempted and detected since the radar program resumed in 1998. ... The number of NHATS objects detected with Arecibo similarly jumped in 2012, and 2015 was again a record year, where we detected 23 of these objects. ...

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• Beamswitching tests with ALFA
• ALFA Sky Angle Tracking
• Some Useful Resources

M. Villi reports that in NGC 3368 (R.A.= 10h46.7m DECL.=+11°49') (2000.0) is present a suspect object, about 60" north, of mag.13. He took several images with a CCD camera (integration time 1 min.) on May 9.9 U.T. Also a previous image taken last April 21.9 UT shows no objects in that position. There are no minor planets in that area as checked with on-line minor planets checker at CBAT and on Guide 6 software; also nothing is shown on Vickers, Carnegie, Buil and RealSky atlases. ...

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• Kuiper-Oort
• APOD: 2005 July 31 - Solar System Object Larger than Pluto Discovered
• Charts

... Tonight's Sky . ... Observing . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... The Real Reality Show: Would aliens be anything like us? ... The Real Reality Show: All about the Drake Equation . ... The Real Reality Show . ... The Real Reality Show: Matter and Energy . ... Only registered members of Astronomy.com are allowed to comment on this article. ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter....

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• Easy-to-find Objects in the 2015 Winter Sky | Astronomy.com
• 50 Weirdest Objects in the Cosmos | Astronomy.com
• weirdest objects | Astronomy.com

... Club By-laws . ... Other Club Activities . ... Public Nights . ... Dr. James Green, NASA, Director Planetary Science will be our esteemed speaker on Tuesday, April 12, 2016 at 7:30 PM in Peyton Hall on the Princeton University campus. ... Our astronomers setup telescopes for public use at Communiversity in Princeton, Super Science Saturday at the NJ State Museum in Trenton and at various public events around Mercer County. ... Amateur Astronomers Association of Princeton, Inc., ...

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... A rough estimation is that in the United States there is one planetarium per 100,000 population, ranging in size from the Hayden Planetarium's 20-meter dome seating 430 people, to three-meter inflatable portable domes where children sit on the floor. ... Together dblo associates make a huge impact in the architecture, interior design and development arena in London. ... With the holidays around the corner what better way to spoil your family than with your very own private home cinema. ...

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... The awsome spectacle of a brilliant comet, with its long ghostly tail streaming behind it, is a rare event. ... Only one other comet, Comet Halley, was seen so far from the Sun, giving scientists an opportunity to watch it as it slowly warmed up and sprouted a tail. ... Comets are the Rip Van Winkles of the solar system -- mini-worlds that have changed little during their 4.5-billion-year nap far from the Sun. ... Observing Comets . ... Once, comets inhabited the entire solar system. ...

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• ASP: Making Your Own Astronomical Camera
• ASP: Beacons in the Gloom
• ASP: Black Holes