ARCSAT ID NUMBER: AS01 DESCRIPTIVE TITLE: Search for Short-Period Planets Orbiting Bright White Dwarfs PI: Brett Morris (UW) OBSERVER(S): Brett Morris (UW), Doug Branton (UW) UNCERTIFIED/UNTRAINED OBSERVERS: Undetermined Pre-MAP students ... In addition, since typical white dwarfs are roughly Earth-sized, the transit of an Earth-sized planet can cause changes in brightness on the order of several tens of percent for durations on the order of one minute (Agol 2011). ...

... Home Education Classes AAA Fall Astronomy Class: Astronomy Basics тАУ October-November 2015 . ... AAA Fall Astronomy Class: Astronomy Basics тАУ October-November 2015 . AAA Winter Astronomy Class: Measuring Distances in Space тАУ Dec 2015 тАУ Feb 2016 . AAA Spring Astronomy Class: The Physics of Astronomy тАУ February - March 2016 . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ...

Observers in Northern Ireland will have an opportunity, weather permitting, to observe a relatively rare astronomical event on Wednesday, 7th May, when a transit of Mercury will take place. ... We will have to wait until 9 May 2016 for another opportunity to see Mercury passing in front of the Sun's disc from Europe. ... Mercury passes closest to the Sun's centre at 8:52a.m. at which time it will be at a distance of about one-third the solar diameter from the Sun's centre. ...

... Advises . Contact Advises . As an advise for amateurs we would like to underline: if it's possible, try to observe 3 asteroid positions per night and do not neglect to observe the Numbered Minor Planets in your telescope field of view as a "by product" of your observational programs. ... We think such estimations ought to be produced every morning after CCD observations of the moving celestial objects by observer himself. ...

Statistics of sunspot activity . The sunspot indices . ... The solar regions . ... 2015 . ... November . ... November, 2015 . Visual indices of solar activity by author's observations . ... Average . ... 0.00 . ...

... ARTICLE: The Adventurous Search For The Astronomical Unit . ... Kepler himself had suggested to use the rare occasions of Venus transiting (crossing) the solar disk to measure our distance to the planet. ... Due to the orbital inclination of Venus against the ecliptic of 3.5°, a Venus transit is so rare that it happens only at intervals of 121.5 years, 8 years, 105.5 years, 8 years and so on. ... Crabtree witnessing the transit of Venus 1639 . ... Transits of Venus - The Quest for the Solar Parallax...

... It has been the focus of past AAVSO/Transitsearch campaigns to search photometrically for transits. ... The HD 80606 b results page from the pre-2007 transitsearch.org site is located here . ... Transitsearch.org observers are encouraged to monitor HD 80606 b during this encounter, and through the transit window which ends roughly a week later. ... Observers are encouraged to obtain as much photometry as possible of this extremely important and intriguing system. copyright 2007 Oklo Corporation . ...

Databases (NSDC) of the Natural Planetary Satellites. ... NSDC: Database of astrometric observations of Natural Planetary Satellites . ... They are thoroughly looking for observations in different sources, creating their owndatabases which are then mostly inaccessible to other researchers. ... In the file "content" with explications, the reference is given to the data source as well as the bibliographic reference. ... Data sources. ... Why a specific bibliographic database for Natural satellites? ...

Stellarium 0.12.3 . ... Classes . ... SpaceShipObserver Class Reference . An observer which moves from from one position to another one and/or from one planet to another one. ... SpaceShipObserver (const StelLocation &startLoc, const StelLocation &target, double transitSeconds=1.f) . ... Get whether the life of this observer is over, and therefore that it should be changed to the next one provided by the getNextObserver() method. ... Get the next observer to use once the life of this one is over. ...

Comments on the regular wave planetology . ... Bothering all planetologiests losses of spacecrafts (SC) in martian orbit have a direct bearing on the regular wave planetology discussed at this symposium. ... Of 16 martian SC serious troubles and losses occured in 9 cases,this gives safety (stability) factor of 0,438. ... Sphericity factors are 0,830 and 0,420 respectively and they are rather near to the above shown safety factors (0,834 and 0,438). ...

... 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. ...

Crater Gassendi . ... I made this drawing was made on the 26th of november 2001. If you compare this one with the previous drawing of Gassendi (below) the differences are clear. ... This drawing was made on the 28th of september 2001. After nearly a full month without observations I had a one hour gap between the thicker clouds. ... This drawing was made on the 29th of august 2001. ... This drawing was made on the 27th of august 2001. ... This drawing was made on the 25th of august 2001. ...

... Come to Fiske Elementary School from 7:00 to 9:30 PM on Monday, Nov. 3 2003 if you love astronomy, space, or just looking at the moon and stars with your fellow Fiske friends. ... We will arrange briefing discussions and activities in the Fiske Gym and viewing stations in Fiske Field, providing a look at - and through - telescopes trained on objects ranging from the Moon to planets and galaxies. ... ATMoB members will bring telescopes for viewing of the Moon, Mars, and other spectacular sky objects....

GRANAT is the Russian x-ray sattelite launched to the high apogee orbit (200,000 km) and operated almost for 10 years (1989 -1999) , carrying out four major instruments: French SIGMA coded-mask hard x-ray telescope (30-1000 keV), Soviet ART-P coded-mask telescope (2??-60?? keV), all-sky monitor WATCH (6-150 keV), and a gamma-burst detector PHEBUS . ... Since September 1994, GRANAT is in the survey mode. ... Explore pages devoted to individual GRANAT instruments (including main scientific results): . ...

... Master . ... Zel'dovich asteroid . ... August 29, 2013: Asteroid (11438) Zeldovich discovered 40 years ago . ... Asteroid (11438) has quite an elongated orbit with a period of 3.25 yr and eccentricity 0.19 (twice that of Mars). ... Asteroid will be located in Cancer constellation at the distance of 1.63 AU from Earth and 2.62 AU from the Sun (near the aphelion of its orbit), with the magnitude being 17.0m. Telescopes of MASTER network will definitely observe asteroid (11438) Zeldovich in early 2014....

Direct images gallery. Here we have presented some images obtained on SAO telescopes by using SCORPIO. ... NGC 6951 . ... This color image are combined from the frames in the filters V ("blue"), R ("green") and middle-band filter SED755 ("red"). ... The true color image is constructed from three frames in B (Texp=600 sec), V (Texp=480 sec) and R (Texp=400 sec) filters. ... The true color image is constructed from three frames in B (Texp=180 sec), V (Texp=120 sec) and R (Texp=90 sec) filters. ...

... Астрофест 2014 . ... Юпитер. Весна 2015г, съемка камерой QHY5L-II. ... Противостояние Марса весной 2014г, съемка камерой DВK-21. ... Юпитер 2012г, съемка камерой DВK-21, ЛЗОС APO175. ... Юпитер, ноябрь 2011г. съемка камерой QHY5T. 15.11.2011 . ... Съемка камерой QHY5T, телескоп Ньютон 200мм . ... Сатурн, 21.12.2008г. Первая попытка планетной съемки камерой QHY5, телескоп Ньютон 200мм на монтировке MT-3S-2D. Суммирование 450 кадров из 1000 в Registax3. ... 2004-2015г. Андрей Олешко ...