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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... 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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... Observing . ... Observing springtime deep-sky objects with a large telescope . Springtime observing for small telescopes . ... Astronomy magazine Editor David J. Eicher shares 10 of his favorite springtime deep-sky objects, including the NGC 3190 galaxy group, 3C 273, and NGC 3242. ... In this video, Astronomy magazine Editor David J. Eicher discusses deep-sky objects in the spring sky you can see with a 12-inch or larger telescope. ... Get instant access to subscriber content on Astronomy.com! ...

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• Web Extra: Astronomers animate one of the largest galaxy clusters ever observed

... The concerns here are similar to those for observing bright targets; saturation and blooming of the bright companion PSF must not impact the faint target. Also, one may need to consider subtracting the PSF of the bright object, and effects which limit the accuracy of that subtraction. If the bright companion will saturate and bloom, it will be necessary to rotate the CCD so that blooming along the CCD columns does not obliterate the faint target. ...

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... ESO is building what will be the World's largest optical telescope array, The Very Large Telescope (VLT). The VLT Project organisation is responsible for the design and construction of the Unit Telescopes, including enclosures, optics, adapter-rotators and coating unit. ... Unit Telescopes Overview - This page is outdated, an update is in process. ... Secondary mirror (M2 Unit) - This page is outdated, an update is in process. ... Coating Unit - This page is outdated, an update is in process. ...

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... A Quasar-Galaxy Collision? ... In 1963 astronomers were astounded to discover that certain faint, star-like objects have very large redshifts. ... A Glimpse of Titan's Surface . ... The surface of Titan, Saturn's largest moon, is normally hidden from view by its thick, hazy atmosphere. ... Stars orbit the center of the cluster, and the cluster orbits the center of our Galaxy. ... If you look closely at the center of the above photograph, you will see a spiral galaxy behind the field of stars. ...

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DIFFRACTION CAMERA FOR HUNTING UP THE MICROORGANISMS ' TRACES How to avoid a contradiction between a large-size file of a microscopic image and a narrow-band telemetry system Leonid Ksanfomality and Elena Petrova Space Research Institute RAS, Moscow, Russia Contacts: ksanf@iki.rssi.ru, epetrova@iki.rssi.ru Europa Lander workshop - IKI Moscow 2009 Why we may hope to find microorganisms ' traces on ... A buildup of ice at the poles may have prompted the migration. ... This image is 1 mm high. ...

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• Spacecraft Observing the Sun and the Heavens above

... R1823 Date Received: 2005­May­31 15:56:13 Technical Page Proposal Type: Urgent General Category: Planetary Radar Observation Category: Solar System Total Time Requested: 20 Hours Proposal Title: Radar Observations of Near­Earth Asteroid 2003 KP2 ABSTRACT: Relatively large objects such as 2003 KP2 (3 km diameter) are available for imaging only a few times per year, and we need to use every opportunity to image these targets. ... Maybe Part of the observing run. ...

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In 1950 Jan Oort noticed that . 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. ... Its orbit is intermediate between the Kuiper Belt and what was previously thought to be the inner part of the Oort Cloud. ...

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... Meade Instruments Corporation . ... Choosing the Right Microscope . ... On most microscopes the specimen glass remains fixed while the microscope's objective lens and eyepiece move as a unit up or down to focus the image. ... Eyepieces of varying powers work with objective lenses of varying powers to yield a range of microscope magnifications. ... Magnification: The effective magnification of a microscope is determined by multiplying the eyepiece power by the objective lens power . ... about meade |...

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... Next: Unsupervised Catalog Classification Up: Object Detection and Previous: Classification of Objects . ... Multi-resolution allows for image analysis in terms of different scales. ... This approach is used for the detection (and subsequent analysis) of globular cluster systems around elliptical galaxies, and for image characterization and object trawling in large image databases. ... The applicability of this approach to object detection in large image collections has been investigated. ...

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• Methods for Structuring and Searching Very Large Catalogs
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... 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: Guest Observer
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• ASP: Cosmic Collisions

Next: Selection effects Up: Emission-line galaxies Previous: Emission-line galaxies . ... O III ] ? ... In Fig. 4 emission-line galaxies from the HSS sample are plotted in comparison with some BCGs from the SBS (Izotov et al. [ 1994 ], [ 1997b ]; Thuan et al. [ 1995 ]) and ELGs from the Case survey (Weistrop & Downes [ 1988 ], [ 1991 ]; Augarde et al. ... We tentatively classify it as a possible LINER (low-ionization nuclear emission-line region galaxies; Heckman [ 1980 ]). ... emission lines. ...

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... Planets . ... An artistтАЩs impression of Ceres located in the asteroid belt, with plumes of water vapour rising from its surface. Could Ceres have more water than on Earth? (image credit: ESA/ATG medialab) . ... Ceres, captured by the Dawn Space craft in December 2014, Dawn was 740,000 miles (1.2 million km) from Ceres at the time. (image credit: NASA/JPL-Caltech/UCLA/MPS/DLR/IDA) . ... Now itтАЩs a dwarf planet. (image credit: NASA/ESA/SWRI/Cornell University/University of Maryland/STSci) . ...

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Storing and accessing the largest astronomical catalogues with the SAI CAS project S. Koposov1,2,3, O. Bartunov2, S. Karpov4 et al2. ... Why we want to build our own Catalogue Access Service The requirements for our CAS system The importance of the Database for the CAS (PostgreSQL & Q3C) The technical realization of CAS What has been already done Example of work TODO Storing and Accessing Astronomical Catalogues Existing projects CDS OpenSkyQuery CASjobs with SDSS They are all really great! ...

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... 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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Geographos . Geographos is classified as an Earth-crossing asteroid because its orbit can evolve to intersect Earth's orbit. ... The asteroids probably include several hundred objects larger than Geographos, thousands larger than half a mile across, and a few hundred thousand that are larger than a football field. ... Researchers obtained radar images of the asteroid on August 30, 1994, when the asteroid was 7.2 million kilometers (4.5 million miles) from Earth. ... Asteroids Vesta Mathilde . ...

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Next: Mosaicing Observing Strategies Up: Primary Beams and Mosaicing Previous: Primary Beams and Primary . The primary beam limits the size of an object that we can observe with a conventional experiment. To circumvent this, a large object can be observed using multiple pointings - this is the practise known as mosaicing. ... A description of the theory behind mosaicing can be found in the NRAO Synthesis Imaging Summer School (Lecture 15 - Wide Field Imaging III: Mosaicing - by Tim Cornwell). ...

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... The First (Experimental) International Astronomy Olympiad . The following olympic problems were proposed for the participants on the theoretical part: Grades 8-10 . ... Why is it sometimes better to use a small telescope in orbit around the Earth than it is to use a large telescope on a mountain top? ... What will an observer looking to the Moon through the telescope see? ... Paper with a drown circle and table of maximal elongations of Mercury and Venus had been done for participants. ...

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• II International Astronomy Olympiad, Problems to solve

... Astrophysics Group . ... MRAO Telescopes . AMI . ... This is a cosmic microwave background (CMB) telelescope with a difference, in that it is designed to survey the sky looking for galaxy clusters by means of the ?shadows? they cast against the CMB. This shadowing, the so-called SZ effect, is a remarkable phenomenon because it is independent of redshift, allowing AMI to find clusters which are so far away that their own emission would be too faint to detect ? ...

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