... Current APO Weather . ... Search Site . ... Information for New Users . ... Technical Staff pages . Night Logs and Mailing Lists (maintained by APO) . ... Technical Documents and Database Search . ... Observer's Documentation and Procedures . ... Problem Reporting and APO Technical Documents Database Search . ... APO Drawing/Document Management Procedures . ... APO Technical Documents Database Search . Home Astrophysical Research Consortium . ... Mail Lists (maintained by APO) . ...

STEP INTO THE BLUE - MEADE INSTRUMENTS PRODUCT GUIDE . ... Telescopes . LX850 Series . ... 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. ... Coronado€о Solar . ... Spotting Scopes . ...

... The Science Operation Department is composed of Astronomers, Telescope Instruments Operators(TIOs) and Data Handling Administrators(DHAs). ... Astronomers have proposed several methods to quantitatively measure the amount of turbulence above the telescope, which the most common ones is Differential Image Motion Monitor (DIMM). In optical testing, the Hartmann test is the common method to test the quality of optical components. ... Hartmann mask consists of 48 lenses. ...

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) . ...

STIS Instrument Handbook for Cycle 24 . ... Space Telescope Imaging Spectrograph Instrument Handbook for Cycle 24 > Chapter 3: STIS Capabilities, Design, Operations, and Observations > 3.3 Basic Instrument Operations . ... Target Acquisitions and Peakups . ... For science observations taken through slits which are smaller than 3 arcseconds in either dimension, and for use of the coronagraphic bars, you will need to specify a target acquisition exposure to center the target in the science aperture. ...

... In essence, you have an equatorial telescope mount for your camera to track the stars anywhere in the sky. ... Astronomy Camp for All Ages . Astronomy Campers use the research telescopes and equipment at the mountain-top observatories on Mt. ... At night, Campers observe celestial objects under a dark sky using the 40-inch and 60-inch telescopes on Mt. ... A complement of computers allows Campers to analyze data using professional languages and to simulate astronomical phenomena. ...

... Science User Portal . ... ESO, the European Southern Observatory . ... Travel and Contacts . Travel to ESO Headquarters . ... ESO . ... VLT/Paranal . ... Survey Telescopes . ... ESO Science Newsletter . ... Mounted Images . ... Telescopes Instruments . ... VLT Instruments . ... First Objects . ... ESO Top 10 Astronomical Discoveries . ... On 10 September 1998, the first scientific instrument of the VLT, FORS1, was successfully mounted on the Cassegrain focus of the first 8.2-m VLT telescope (UT1). ...

... This is a personal project collecting and documenting early images of Harvard College Observatory, focusing on the site at Observatory Hill (previously Summer House Hill). ... This page shows a list of all images tagged with "optical". [link] 1848/11/8 Great Refractor Lithograph . Image Credit: B.F. Nutting, A. Sonrel . ... One related image not shown . ... Annals of the Astronomical Observatory of Harvard College / History and Description of the Astronomical Observatory of Harvard College vol. ...

... GRB 990510: Another Unusual Gamma Ray Burst . ... Two weeks ago, the BATSE instrument on the orbiting NASA Great Observatory Compton detected unusually bright flashes of gamma-rays from a point deep in the southern sky. ... NASA Official: Jay Norris. ... Публикации с ключевыми словами: gamma-ray burst - unusual - optical transient - gamma ray - гамма-всплески - гамма-излучение . Публикации со словами: gamma-ray burst - unusual - optical transient - gamma ray - гамма-всплески - гамма-излучение . ...

... All the optical elements are mounted in a cryostat aimed at keeping components at a temperature of about 80 K. The focal plane masks (field stops or slits) are mounted on a wheel. ... The collimator is an achromatic doublet lens, which images the entrance pupil of the TNG and provides an almost parallel beam (F-number about 2000) at the pupil plane, where Lyot stops can be placed. Right after the pupil plane, two close wheels mount filters and grisms. ...

... Ignacio Ugarte Urra's PhD thesis topic is the investigation of coronal bright points. In his first paper (in collaboration with Gerry Doyle and Maria Madjarska) he investigated the formation, evolution and decay of a coronal bright point via a spectroscopic analysis of its transition region counterpart and the evolution of the underlying magnetic bipole during 3 days of almost continuous observations. ... In general the bright point has a radiance 4 times higher than that of the network. ...

... 295, 2003 H. E. Payne, R. I. Jedrzejewski, and R. N. Hook, eds. The MAST Pointings Tables Pro ject Karen Levay, Paolo Padovani1 , Randall Thompson, Megan Donahue, Michael Corbin Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 Abstract. We have undertaken a pro ject to create a database of all HST imaging observations organized by position on the sky. ... Each sky region was called a "pointing." ... Users select the instrument pointings table they wish to search. ...

... Meta Index / Home Page / Description . ... opticsxy . DESCRIPTION . opticsxy computes for each instrument the intersection point of the optical axis of the respective telescope and the focal plane. The result in given in CHIPCOORD coordinates of the CCD containing the intersection point. The numbers can be used as CCD MiscData attributes OPTICS_X / OPTICS_Y (+ OPTICS_CCD ). ...

Next: Available Receivers Up: The Arecibo Observatory and Previous: The Arecibo Observatory and . The main reflector of the telescope is a , 305 m (1000 ft) in diameter and 51 m (167 ft) deep. ... The system housed in the Gregorian dome provides continuous frequency coverage from 300 MHz to 10 GHz using a pair of shaped (secondary and tertiary) subreflectors, plus standard point feeds and receivers. ... Consecutive use of multiple receivers during an observing run is straightforward. ...

... Orbiter . Payload of the Orbiter . ... the instruments . ... ORBITER . Index . Instrument . Mass (kg) . ARGUS . ... visible and IR mapping spectrometer . ... planetary IR Fourier spectrometer . ... mapping visible and thermal radiometer . ... mapping high-resolut. spectrophotometer . ... multichannel optical s spectrometer . ... quadrupole mass-spectrometer . ... fast omnidir. energy-mass ion analyzer . ... wave complex . ... platform for ARGUS instruments . ... MASS-MEM . ...

. Pulkovo Observatory of Russian Academy of Sciences is situated . near Saint-Petersburg. It was founded in 1839. 196140, Saint-Petersburg, Pulkovskoye chaussee 65/1 . English version . Russian version . This page has been accessed times since May 1, 1999.

The "21-inch" (0.52 meter) Moore reflector celebrated its 50th year in 2005, just prior to retirement from its role as our primary research instrument. ... The primary telescope and its mounting were designed and constructed by the Louisville Astronomical Society between 1935 to 1955. The telescope is named for Walter L. Moore, who was responsible for coordinating its construction, and who tested and figured its primary mirror. ... It is presently stored at Moore Observatory. ...

... Visited 5572 times - Selected 51 months ago . ... Visited 6948 times - Selected 51 months ago . ... Visited 4688 times - Selected 51 months ago . ... Visited 7791 times - Selected 51 months ago . ... Visited 9271 times - Selected 51 months ago . ... Visited 7887 times - Selected 51 months ago . ... Visited 4431 times - Selected 51 months ago . ... An online resource for building customized observing lists based on a database with over 10,000 deep sky objects. http://www.virtualcolony.com/sac/ . ...

RECREATIONAL TELESCOPES . ... ASTRONOMICAL TELESCOPES . ... Home Products Telescopes Astronomical Telescopes ASTELE™ 152MN . ... Whatever eyepiece you're using at the time is your finder eyepiece. ... 152MN is 4.4, so, unlike telescopes with much longer ?-ratios, you're able to use low magnification (27.4 X, 2.3° with the 25 mm PlЖssl eyepiece) which produces bright images and wide fields of view for those dim galaxies, nebulae, and very large star clusters, but the ASTELE? ... BK7 optical glass . ...

... This is usually defined as the direction pointing toward the center of the primary body. ... NODE: The place where the plane of one orbit crosses the plane of another. ... ORBITAL PLANE: The flat surface that would result if every point on the orbit of a body was connected to the center of its primary. ... PENUMBRA: The edge of the primary body's shadow. ... PERIOD : The time required for one body to orbit the primary body. ... PROBE: A vessel designed to pass and observe an astronomical object. ...