... It was with this spirit that Norman Oberle suggested that area amateurs should have the benefit of a large aperture (25 inches or larger) telescope with sufficient focal length for excellent visual work. ... Norm Oberle and Jim Thomas spent 2,000 hours grinding and polishing to work the mirror into an oblate spheroid. ... Norm worked with Jim Thomas in a basement workshop. ... The Richland club is situated in the Hidden Hollow camp ground, and has long held meetings in the clubhouse on the grounds. ...

Общая Астрономическая Конференция > Товары для астрономов > Полезное для астрономии . Supernovae: and How to Observe Them (Astronomers' Observing Guides) . ... Поиск . ... Созвездия (поиск и описание) .. Созвездия южного неба (поиск и описание) .. Осенние созвездия (поиск и описание) .. Летние созвездия (поиск и описание) .. Околополюсные созвездия (поиск и описание) .. Весенние созвездия (поиск и описание).. Зимние созвездия (поиск и описание) .. ...

NMW survey overview . Access image archive . ... The New Milky Way survey aims to detect bright (V<13.5) optical transients near the Galactic plane using an automated wide-field (8x6 deg.) system capable of surveying the whole Milky Way area visible from the observing site in one night. ... All images obtained during the transient search survey are available online (please use the image archive access form ). ... Images per field: . ... Images per night: . ... Milky Way imaging time: . ...

The AstroGuide . ... AstroGuide | ... AstroGuide Listing . ... See many more Astronomy Listings by: Category or Alphabet . Coronado Instruments manufactures optical instruments for Solar observing. In addition to dedicated Solar telescopes they manufacture Solar instrumentation and offer consultation on Solar instrument projects. Last Update November 17, 2004 . Listed Since November 17, 2004 . ... 520) 740 1561 . ... Web Site . ... dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Space Flight . ... Monthly Sky Notes . ... Posted on May 31, 2011 | 324 Comments Comet Elenin is coming!WeтАЩre doomed!That is if you believe everything you see on the internet.Comet EleninтАЩs approach has been all but ignored by the mainstream media, and into this vacuum [ ] . Continue Reading.. ... No Comments What can you see in the March 2011 night sky? ... 9 Comments To observers on Earth, the great bull of Taurus has a fiery red eye. ...

Posting Observations . ... You will need to subscribe to vsnet-acc (to allow you access to post your observations). ... VSNet has several different e-mail sigs, and sub sigs. ... These list are controlled by a software package called " Majordomo ", which allows you to subscribe and unsubscribe yourself from these list with an e-mail message (automated). ... Once you have subscribed to vsnet-acc (which will only send you a welcome message back and nothing else) you can post to the other list. ...

... In order to compare the number of different evolutionary stages obtained and X-ray luminosity of the chosen X-ray sources with the observed galactic values we use the sum of C/O+O/C , where C and O are the calculated and observed values of a given binary type, respectively. If we make comparison for a number of different binary species (for example, we compare the number of CV, number of X-ray pulsars,   total X-ray luminosity of LMXB, etc.), we write this criterion in the form: . ...

OBSERVATIONS OF COORBITAL SATELLITES OF SATURN Emel'yanov N., Varfolomeev M. Sternberg State Astronomical Institute, Moscow, e-mail : emelia@sai.msu.ru Institut de MИcanique CИleste et de Calcul des иphИmИrides, Paris, e-mail : emelia@imcce.fr Abstract. To improve the orbital parameters and masses of coorbital satellites of Saturn, Janus and Epimetheus, new observations of these satellites are necessary. ... IN: Saturn. ... New observations of Saturn's coorbital satellites" - Icarus. ...

Mars Moons . ... Credit Copyright: Johannes Schedler ( Panther Observatory ) Explanation: This year's record close approach of Mars inspired many to enjoy telescopic views of the red planet. ... Mars' moons were discovered in August of 1877 by Asaph Hall at the US Naval Observatory using the large 26-inch Alvan Clark refractor . Recorded on this August 22nd, innermost moon Phobos and outermost moon Deimos are seen here against the planet's glare in a digital composite image. ...

... Note on Filters: . ... NGC 3351 is a mostly face-on late type spiral galaxy. It is marked by a bar like feature in its central regions and a strong inner ring of star formation. ... The galaxy was imaged through the A1,B1 and B5 filters over a total exposure time of 1936 seconds. ... The galaxy was imaged through the A1 filter for 450 seconds and the B1 filter for 1084 seconds. ... The galaxy was imaged through the A1 and V1 filters over a total exposure time of 1200 seconds. ...

... APT Activities and Science Results 3. ... APT Secretary Philip Edwards (ISAS) reviewed the aims of the APT (http://www.vsop.isas.ac.jp/apt/DefinitionAndAims.html). ... The Australia Telescope Compact Array, and Ceduna, Hartebeesthoek, Kashima, Mopra, Parkes, and Shanghai telescopes of the Asia-Pacific Telescope participated in these observations. ... In the absence of Tetsuo Sasao, Philip Edwards briefly described results of the APT 22 GHz observations conducted from October 1st to 5th, 1997. ...

... 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. ...

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. ...

System of astrometric databases of Pulkovo observatory. ... The purpose of these observations is the determination of precise coordinates of Solar system bodies, which is necessary for development and improvement of motion theories, and for studying the evolution of the Solar system. ... Accuracy of photographical observations is about 0.2-0.3 arcsec for equatorial coordinates and 0.1-0.3 for relative coordinates of planetary satellites, depending on object and observational conditions. ...

Observation data to which modern planetary ephemerides can be adjusted . Date is time of signal emission!, as contrasted to American radar ranging . where date is time of signal reception. Frequensy is 769.42875 MHz 1962-1986 . ... Coordinates of stations in Eupatoria, Crimea . ... station 8 . ... Observational Data to which DE/LE ephemerides are adjusted http://ssd.jpl.nasa.gov/?eph_data . This page is supplied by Elena Pitjeva; please send commentaries to: evp@quasar.ipa.nw.ru . ...

... This applet generates an observing list based on an observer's location and time. ... To use this program, enter in your location, and the local times at which you wish to begin and end observing. The date you enter should correspond to the calendar day at the time at which you begin observing. For example, if you wish to observe from 9:37 PM October 23, 2007 until 3:21 AM October 24, 2007, you would enter 21:37 for the starting time, 03:21 for the finish time, and 10/23/2007 for the date. ...

MAIN PAGE . ... Nova Cygni August 1975! ... 1975/76: Comet West! ... Dr. Richard West (4th from left) & AAL members visiting SES Betzdorf on occasion of our club's 25th anniversary - October 1996 . Comet West Information . ... It was the brightest comet visible from Earth since Comet West in 1976. ... 1997: Comet Hale-Bopp! ... Thus Comet Hale-Bopp never got closer to Earth than Earth gets to the Sun. ... Comet Hale-Bopp JPL Page . ... 1999: Total solar eclipse over Luxembourg! ...

Verkhoglyadova O.P., V.N. Ivchenko, K. Kudela, M. Slivka, V.N. Lutsenko, S.A. Romanov "Approach to identification of the tail plasma regimes using INTERBALL-1 data" // Czech. ... Yermolaev "Observation of vortical motions and compressional waves in the dawn low-latitude sheet" // Journal of Technical Physics, 1999, v.XL, No 1, p.325-328. ... Martiushov V. "A point explosion inside a cavity with power-law density distribution" // 6 th Open Young Scientists' Conference on Astronomy and Space Physics. ...

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. ...

RELATIVE SUNSPOT NUMBERS Description of Data from SGD Explanation of Data Reports: Relative Sunspot Numbers -- The relative sunspot number is an index of the activity of the entire visible disk of the Sun. ... The provisional daily Zurich relative sunspot numbers, Rz, were based upon observations made at Zurich and its two branch stations in Arosa and Locarno and communicated by M. Waldmeier of the Swiss Federal Observatory. ... This indicates the uncertainty above and below the predicted number. ...