Next: Descriptor for the Up: Horizon obstructions Previous: Horizon obstructions . If the photometer has an eyepiece, one can easily check whether the pupil is clear or obstructed by examining the exit pupil formed by the eyepiece. ... The ``observing'' limit is a position at which the obstruction is near, but completely outside of , the usable field. The ``moonlight'' limit is the position at which the last speck of sky disappears behind terrestrial obstructions. ...

... Spacecraft . 29b. Satellites looking down . ... 29e. Explorers of distant space . ... The Hubble orbiting telescope. ... The Hubble telescope , in low Earth orbit, overcomes such limitations, in the visible range and in part of the UV. ... So fruitful was this observation that a second "deep field" exposure of such length, near the southern pole of the heavens, was recently conducted. ... Some satellites specialize in observing the Sun, such as the Japanese Yohkoh and NASA's SOHO . ...

Date: 11/22/2014 Time:23:10 Moon Age: -0.2 Available Observing Hours: 12.9 Observer: Instrument: Operator: Cage: Lebofsky, Bell 90Prime Trueblood PF hours lost to: weather: 2.0 telescope: 0.0 instrument: 0.0 computer: 0.0 Time Temp Humidity Wind Vel. ... When 90P Expose is clicked on hh:mm:00, the Exposure setup msg appears ~2 sec later, which is also the time in the FITS header. The Integration Started msg appears ~8 sec later on red window, about ~5 sec later than time in FITS header. ...

... Recent Topics . ... MAO main . ... Fw: ASTRONET: Task 5.4 - observing schools . ... Subject: Re: ASTRONET: Task 5.4 - observing schools . ... with the organization and carrying out observing schools. ... second half of September, and which will be funded by the training and . ... intended for master and starting PhD students. ... actions on observing schools, providing access for students, Master . ... observing schools for master students. ... in form of observing schools for pre-PhD students. ...

... Up: Telescope and Instrument Control Systems . ... The software is based on a client/server architecture and provides remote access for controlling, monitoring and troubleshooting the array. ... The server software is developed in C++ and runs on a UNIX host machine. ... This computer demonstration consists of remote observing with the Caltech Millimeter Array located at Owens Valley in California to show the feasibility and features of this software package. ... Figure 2: Array Status window. ...

... SS433 is a close binary system, one star is a supergiant, a second one is a black hole. ... Even a black hole cannot accept such an enormous mass flux, a supercritical accretion disk appears, all the excess gas glows up to several tens of thousands degrees and is ejected off the disk with enormous velocities. ... SAO researchers have found an evidence of the supercritical accretion onto a black hole in SS433, which follows from a brightness variability of the SS433 disk. ...

. Home . - . Overview . Glossary . Observing . Exposure Time Calculator (ETC) . Survey processing . Pictures . Publications . - . External Links . ESO - Public Surveys . near IR surveys . DENIS . 2MASS . UKIDSS (in north) . Excel Spreadsheet (version 3 of 2007-02-15) to help PIs plan their observations . Instrument Calibration Plan (draft - v1.4) . Menu of 23/10/2012 . Page updated 2006 Nov 30 by J.P.Emerson to whom comments should be sent . [ ESO ][ VISTA Home ]

... See "About ATMoB" / "Network" for more details on the clubhouse network. ... Direct viewing of a laser-pointer beam, even briefly and at a distance of a kilometer or two, has the potential to cause temporary flash blindness — the same effect you get right after a flash photo is taken — or afterimages. ... To help use our laser tools safely, the Amateur Telescope Makers of Boston, Inc. has adopted these recommendations as policy. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... Norm Oberle being reflected by one of his . ... The 31" mirror at the . ... It was through Norm's classes that I made my own two telescope mirrors described elsewhere on this site. ... Soon he made his first first telescope. ... Norm was one of the charter members and organizers of Cuyahoga Astronomy Club and its first president. ... In 1968, Norm formed the LEAP Project (Lake Erie Astronomical Project) partially an out growth of the telescope making class and astronomy meetings at the planetarium. ...

... Home Articles Observing Resources for Amateur Astronomers ? Part 1: Beginning Observers Observing Resources for Amateur Astronomers ? Part 2: Intermediate Observers . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . Observing Resources for Amateur Astronomers - Part 2: Intermediate Observers . Observing Resources for Amateur Astronomers - Part 3: Advanced Observers . Observing Resources for Amateur Astronomers - Part 4: Magazines and Miscellany . ...

The Stone Age Observatory. It is well known that a lot of ancient constructions are oriented according to the cardinal points but not long ago scientists turned upon archeological monuments. ... The ancient monuments studied by archeoastronomy had been used for observing the sun and the moon. ... They are called megalits (from Greek "megas" - "great"; "litos" - "stone"). ... The Great Stonehang. ... Orby called it a Heel Stone because he had seen a small hole in it looked like a heel trace. ...

... The choice of the spectrograph design (Fig.2) is determined by the quantity R, the overall dimensions of the PF cage and the restrictions on the rigidity of the structure of the device. ... As the camera's objective a fast 4-lens aplanat is used having a focal distance F cam =140 mm and a relative aperture of 1:1.8, the resolution at the centre is no less than 80 gr/mm, that over the field at a distance of 3 mm from the edge along the frame ( ) diagonal is 35 gr/mm. ...

RADIOASTROPHYSICAL DEPARTMENT • INSTITUTE OF SOLAR-TERRESTRIAL PHYSICS RAS SB . ... SSRT - Receiving systems . The SSRT has two independent receiving systems for recording solar observational data, and several ancillary receivers for checking, setting up and adjusting the instrument. The base receiving systen is a multichannel filter receiver for a simultaneous recording in 180 channels with the 500 kHz band each, adjusted at steps of about 600 kHz. ... Channel's band . ...

. Bishop School . Gallery of Activities . in Action .

... ASRAS HOME . Radio Astronomy . ... About ASRAS . ... Our Observing Site . ... 2015 Mees Tour Guides . ... We're offering Regular Tours (a presentation on astronomy geared to a general audience, followed by a tour of the observatory and (hopefully!) observing of several objects, which may include the Moon, planets, nebulae, star clusters and perhaps galaxies), and Kids' Tours (a more interactive presentation specially aimed at youngsters plus the observatory tour and observing) as in prior years. ...

... The Sun has come all of one day away from breaking its record for the longest period of inactivity for the last decade - reaching a mid-summer low and falling into yet another state of "hibernation". Yesterday, on the first day of autumn, new sunspots appeared on the surface of the Sun following an absence of almost 50 days. ... The first low lasted 51 days, from 21 July until 11 September last year. ... Now, almost a year later, it seems the Sun has hit a new low almost as "deep" as the first. ...

Twilight observations with MASS/DIMM B. Safonov Sternberg Astronomical Institute Moscow State University Comprehensive Characterization of Astronomical Sites, 2010 B. Safonov (Moscow State University) Twilight observations with MASS/DIMM SITE 2010 1 / 17 Why observe in twilight with MASS/DIMM? ... ASM includes 3 devices sensitive to background: guider, DIMM and MASS. B. Safonov (Moscow State University) Twilight observations with MASS/DIMM SITE 2010 2 / 17 Background in guider. ...

To appear in "Fourth Workshop on Robotic Autonomous Observatories (2015)"RevMexAA(SC) METEOR OBSERVATIONS WITH MINI-MEGATORTORA WIDE-FIELD MONITORING SYSTEM S. Karpov, 1, 3 N. Orekhova2 G. Beskin, 1, 3 A. Biryukov3,4 S. Bondar,2 E. Ivanov,2 E. Katkova,2 A. Perkov, and V. Sasyuk3 RESUMEN 2 Favor de prop orcionar un resumen en espanol. ... The faintest detected meteors has the peak brightness about 10 mag, while the ma jority - from 4 to 8 mag. ... 2010; Karpov et al. 2013; Beskin et al. ...

Next: NICMOS/HST H-band (F160W) Images Up: NICMOS Science Previous: HST NICMOS Observations of . ... Observations of P . ... The NICMOS team has devised a comprehensive program of observations of the Galactic Center. ... Data in hand give a first look at variability and a detailed look at the search for the tip of the main sequence will be discussed where NICMOS has demonstrated adequate sensitivity and photometric precision to identify likely O8-B1 stars at the Galactic Center. ...

User has a possibility to add new string (row) with observed data to the table, to insert string between existing ones, to edit observed data or to delete some strings. To add string select task item in menu bar ( O – C , Identification, Plates, or Observatories ) and then Add String in drop-down menu. ... Marked strings will disappear. ... To select a place for inserting just mark some string, select Paste item in drop-down menu, and block copy appears above this string. ...