... 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 . ...

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 . ...

... Search . ATNF Home . About ATNF . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Parkes radio telescope . ... Parkes | ... A Search for Bright Kuiper Belt Objects . ... Since 1992, 60 large Kuiper belt objects have been detected by ground-based telescopes. ... The detection of brighter objects would improve our ability to determine the Kuiper belt objects' surface composition and provide constraints on the population statistics of different formation mechanisms. ...

... But this remarkable interplanetary perspective from March 13, finds the comet posing with our fair planet itself - as seen from the STEREO Behind spacecraft. ... At the left an enormous coronal mass ejection (CME) is erupting from a solar active region. Of course, CME, comet, and planet Earth are all at different distances from the spacecraft. The comet is closest.) ... Publications with keywords: comet - coronal mass ejection . Publications with words: comet - coronal mass ejection . ...

... 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. ...

... 2013 March 15 . CME, Comet and Planet Earth . Image Credit: NRL / SECCHI / STEREO / NASA . ... But this remarkable interplanetary perspective from March 13, finds the comet posing with our fair planet itself - as seen from the STEREO Behind spacecraft. ... At the left an enormous coronal mass ejection (CME) is erupting from a solar active region. Of course, CME, comet, and planet Earth are all at different distances from the spacecraft. The comet is closest.) ... About APOD | ...

... Indeed, one alteration of orbits can be the outright ejection of a planet. When several big planets are orbiting a star under each other's influence, the system is inherently unstable. ... We know of no good reason why the smallest objects with fusion should have the same mass as the smallest objects that can form by themselves. ... 6) Mission Definition . ... I don't think this mission is impossible, and will suggest a definition in a future article in Mercury. ... Good luck! . ...

... Home . ... Data . ... WFPC2 Home . ... Instrument . Instrument Home . ... An integrated Bright Object Tool (BOT) has replaced the old VTT-based RObust Bright Object Tool. ... The tool will check each exposure in a program for field (and prime) objects that are either health-and-safety concerns, or may impact the scientific value of the data. ... The new tool utilizes information in the proposal file, and also uses the APT and Aladin interfaces for its tabular and graphical display, respectively. ...

... Science . ... Science Users Information > Data Handling and Products > Data Reduction FAQ > How can I run the pipeline when there are no bright objects in the individual image? ... Observing with ESO Telescopes . ... The default use of the visir_img_combine recipe of the VISIR pipeline is with the "ref" option set to false. ... The VISIR pipeline will create the combination of the nodded images using the ESO SEQ CUMOFFSETX and ESO SEQ CUMOFFSETY offset information in the fits file headers. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Moon . Planets . ... Monthly Sky Notes . ... February . ... The ringed planet will be quite bright, but unlike Jupiter it will not be the brightest point of light in the sky, this accolade will return to Sirius which is the brightest star in our night sky in the constellation of Canis Major. ... Seven days later on February 18, the Moon will be in its full Moon phase. ... Tweets that mention Wonders of the February Night Sky | ... Astronotes . ...

You can also see this page in Russian with using KOI8 (X Windows) or CP1251 (MS Windows) Cyrillic coding. The Laboratory supports the space TV experiments, mainly in the planetary exploration missions. ... Image Co-registration . ... PHOBOS mission - Martian satellites investigations. Phobos on the Martian limb, the image from Phobos-2 probe from 02/28/89. ... Russian Space Bulletin. ... Last modified at June,26 1997 Alexey Kuzmin: akuzmin@mx.iki.rssi.ru . Back to IKI home page ...

Download Izmccd (~2.7 MB). The program Izmccd is intended for precision astrometric processing of a CCD frames. This program allows to determine an equatorial coordinates of minor planets, comets, satellites of major planets, visually double stars and other objects. Also you have an opportunity of identification of known minor planets and a detection of moving objects. ... Using of program. ... Solution of problems at identification of star field. Designation of objects on image. ...

... Kuiper belt objects are icy bodies in the outer solar system. ... Views of Kuiper Belt Objects . Object 1993 SC . This image shows a small part of the discovery frames of 1993 SC, one of the brightest Kuiper-Belt objects so far discovered. ... Assuming that Object 1993 SC reflects light much like other primitive asteroids and comets in the out solar system, the diameter is around 300 kilometers (186 miles), or just a quarter the size of Pluto's moon Charon. ... Comet Shoemaker-Levy 9 Impact . ...

... 8, ``Celestial Mechanics'', 2002 Using positional observations of minor planets for improving the orientation of star catalogue Yu. ... But expe­ rience shows that this kind of observations can be used succesfully for improving orientation parameters of star catalogues with respect to dynamical reference system. ... Observations of 90 selected minor planets were used in general solution for their orbital elements, orientation parameters and some parameters of phase re­ duction. ...

... The removal of the bright sky background from your IR images is one of the key steps in the data reduction process. Once bad pixels have been removed from all the astronomical frames, the object frames must have the matching sky background images subtracted from them. ... The simplest sky subtraction is where you have separate sky and object frames taken a short time apart. ... The resulting sky subtracted images should be examined to make sure that sky subtraction has been properly achieved. ...

. Go to RUSSIAN (KOI-8) . The spectrum of giant HII region in galaxy NGC 1084: . Grating : R1302(17) . Halpha region . Exposure time: 780s . Processing: 2 exposures sum with cosmic hits cleaning . The spectrum of bright HII region M17: . Grating : R1302(17) . Halpha region . Exposure time: 600s . Processing: 2 exposures sum with cosmic hits cleaning . Back to LSS main page. Back to Laboratory Home Page .

... Tonight's Sky . ... The Magazine . ... Observing . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... Bright planets meet at dusk . ... Astronomy magazine subscribers can read the full article for free. ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter....

... This class converts an ImagePlus object to a different type. ... Converts a 3-slice (hue, saturation, brightness) 8-bit stack to RGB. void . ... Converts this ImagePlus to RGB. public void convertToRGBStack () . Converts an RGB image to an RGB (red, green and blue) stack. public void convertToHSB () . Converts an RGB image to a HSB (hue, saturation and brightness) stack. public void convertRGBStackToRGB () . Converts a 2 or 3 slice 8-bit stack to RGB. public void convertHSBToRGB () . ...

... Ever wonder how solar-mass stars form?. ... In order for material to accrete onto a protostar it has to lose angular momentum. The angular momentum of a large natal cloud leads to the formation of a circumstellar disk and inner accretion disk as the cloud collapses. ... Winds generated in the inner disk or close to the stellar surface (we don't know which) expel material along the disk rotation axis. ... This provides the highest resolution observational data on nearby young stars. ...

MPEC 2010-A35 : 2010 AL2 http://www.cfa.harvard.edu/mpec/K10/K10A35.html Printer-friendly version MPC Ope rations Status Processing (Info) ECS: Accessible Obse rv e r Se rv ice s (NEOs) NEO Services Overview NEO Confirmation NEO Confirmation (RA order) NEO Ratings NEO Page NEO Observation Planning Aid NEOChecker NEOCMT Checker Obse rv e r Se rv ice s Services Overview IAUMail Minor Planet & Comet Ephem. ... Orbital elements: 2010 AL2 Epoch 2010 Jan. ...