... Duchamp | ... If one is observing a particular spectral line, objects such as galaxies (if it is H I ) or masers (OH, say) will appear as discrete objects in three dimensions, being constrained in spatial position and frequency coverage. ... Efficient three-dimensional searching and merging of detected objects. ... Duchamp does not make assumptions about the shape of the detections -- it does not fit Gaussians or any other function to the detected objects, it simply reports their locations. ...

... 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 . ...

... December 21, 1997 . ... Advantages are briefly discussed of gaining in spectral resolution, which is accompanied by losses in signal level, as compared with the attempts to improve the accuracy of measurement of line parameters by means of rising the S/N ratio alone with increasing the exposure time. To partially solve the problem of observations of faint objects at the BTA a new design echelle spectrometer is proposed. high resolution spectroscopy . ...

Next: Imaging Polarimetry with NICMOS Up: NICMOS Data Calibration and Previous: The Photometric Performance of . ... NICMOSlook and Calnic C . ... Extracting spectra from a large number of NICMOS grism images requires a convenient interactive tool which allows a user to manipulate direct/grism image pairs. ... NICMOSlook and Calnic-C are two programs that were designed to take advantage of the fact that the NICMOS grism mode typically consists of taking both a direct and a grism image. ...

... We have developed a new extraction software package called aXe that was specifically designed to handle the ACS spectrophotometric data. ... The aXe software was designed to extract spectra in a consistent manner from all the slitless spectroscopy modes provided by the Advanced Camera for Surveys (ACS) that was installed on the Hubble Space Telescope in February 2002. ... The extraction process is a set of well isolated steps that can be individually applied and tweaked by the user (Figure 1 ). ...

... SEARCH ASP SITE: Match ALL words Match ANY word . ... Astronomy . ... Hubble Space Telescope Images: http://hubblesite.org/newscenter/newsdesk/archive/releases/image_category/ . ... The Chandra x-ray telescope (in orbit around Earth) has been sending back a wide range of images of what deep space objects would look like if seen with "x-ray sensitive" eyes. ... Web Sites for Asking Astronomy Questions . ... Ask an Astronomer for Kids: http://coolcosmos.ipac.caltech.edu/cosmic_kids/AskKids/index.shtml...

Subject, Problems and Objects of Theoretical Astrophysics. ... Stellar Photospheres, Their Features. ... Physics of Continuous Radiation Absorption in Stellar Photospheres. ... Continuous Radiation Absorption in Stellar Photospheres of Various Spectral Classes. Solar Type Photospheres. ... Characterisics of Absorption Lines. ... Interstellar Absorption Lines, Their Features. ... Physical and Dynamic Features of Interstellar Medium, Which Follows from Observations of Interstellar Absorption Lines. ...

... 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! ...

... Straylight V 15 = Observations of HD144858 An example of the excess flux due to straylight can be seen in figure 1a,b where the observation of 16 CYG B are compared to a reference spectrum of a G2V star. The extra flux detected by the diode array is readily apparent. ... Predicting the Amount of Straylight Spectra from the BPGS spectra library were used as the data to construct the graphs of the amount of straylight as a function of spectral type. ...

Next: Second priority candidates Up: First priority candidates Previous: Stellar objects . Twenty five non emission-line objects are hard to classify at all. ... Figure: Colour distribution for the random sample of 42 second priority candidates in the strip =35-40 (HS 1423+3945 is not included because its APM-colour is not available). ... BCG/H II -galaxies are marked by an additional cross. 4 of 5 APM stellar-type emission-line objects are either QSOs or distant luminous galaxies. ...

... 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. ...

The picture above was made with this demo POV file and this Mirror object POV file . ... This is a magnifying mirror with a light around it, on an articulated arm, designed for wall-mounting. ... Behind this mirror in the image are two more mirrors, one above showing the front, and one below showing the arm in a bent position, and the whole thing roated so that you are effectively looking "up" at it. ... The two images below show details of the base, and the back of the mirror. ...

... ESO, the European Southern Observatory . ... VLT/Paranal . ... Survey Telescopes . ... The VLT Survey Telescope (VST) is the latest telescope to be added to ESOтАЩs Paranal Observatory in the Atacama Desert of northern Chile. ... It is the largest telescope in the world dedicated to sky surveys in visible light. The VST was designed and built by the INAFтАУOsservatorio Astronomico di Capodimonte, Naples, Italy as part of a joint venture between INAF and ESO. €а . ... VLT Survey Telescope . ...

IV International Astronomy Olympiad . ... Text of these problems is available also . ... To solve every problem you may use constants and well-known values you know by heart. ... The apparent diameter of the Moon, as seen from the Earth, is 31'. ... Can you observe a star with magnitude . ... Consider the stars as black bodies. ... Estimate the diameter of a black hole constructed using this patent from a ship with the mass of 5000 tn (1 tn = 1000 kg). ... What stars would you observe this nigth? ...

... This book explains how to use core and client-side JavaScript for version 1.3. JavaScript is Netscape's cross-platform, object-based scripting language for client and server applications. ... Core, Client-Side, and Server-Side JavaScript . ... Client-Side JavaScript . ... JavaScript and Java . ... Examples . ... Conditional Statements . ... Object Manipulation Statements . ... Defining Functions . ... Objects and Properties . ... Indexing Object Properties . ... Defining an Event Handler . ...

The AstroGuide . ... AstroGuide | ... AstroGuide Listing . ... See many more Astronomy Listings by: Category or Alphabet . LONEOS is a system designed to find Earth-crossing asteroids (ECAs) and comets (ECCs), collectively known as near-Earth objects (NEOs). ... Listed Since July 15, 1998 . ... Web Site . http://www.lowell.edu/users/elgb/loneos_disc.html . ... Web . www.astronomy.net . About Astronomy Net | ... dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... Telescopes . ... Superb optical performance coupled with time proven computerized pointing and tracking has made the LX200 ACF series a best-seller in the high-performance telescope class. ... Meade's revolutionary LS LightSwitchтДв series of telescopes use advanced technologies to do what no other consumer telescopes have done before: take all the hassle out of using a telescope. ... AudioStar Controller #07640 is compatable with the StarNavigator, ETX, LT, LX80, LX90, and LXD75 series telescopes. ...

... Operating at a wavelength of 10 ?m, it produces a 135њx135њ image with a resolution of 0.9њ. ... The clouds move from the west-southwest. ... At the same time as the IR images, visible light images were taken with an Apple Computer QuickTake electronic camera. ... At 1540 MDT, the large central cloud is visible in both images. At 1544 MDT, a distinctive cloud is apparent near the center in the visible image and right of center in the IR. The performance of the SDSS cloud scanner is excellent. ...

LOFAR Object Detection Nested Sampling LOFAR peculiarities.. Object detection for LOFAR Object detection for LOFAR LOFAR Object Detection Nested Sampling LOFAR peculiarities.. ... The Likelihood The Prior Ratio 2 3 4 Object detection for LOFAR LOFAR Object Detection Nested Sampling LOFAR peculiarities.. ... The Likelihood The Prior Ratio Outline 1 LOFAR Object Detection Bayesian Framework Nested Sampling LOFAR peculiarities.. ... The Likelihood The Prior Ratio For Instance (2).. ...