. Number of Supernovae discovered by amateurs. In this page the amateurs' contribution in supernovae discoveries is shown. The SN 1957B was the first supernova discovered by an amateur astronomer: Giuliano Romano. He discovered it with his own 0.40 mt. telescope at Treviso (Italy), then later he become a professional. This graph is updated to SN 2000ek . Yellow values are SNe discovered by amateurs, red ones the total number of SNe discovered for each year .

THE PHOTOMETRIC RESEARCHS OF THE MERCURY'S SURFACE BY MEANS OF DIGITAL MODELS. ... The surface brightness of Mercury was measured Danjon (1933, 1949, 1953) and Harris (1961) in phase angle 3o-123o. The analysis of the various data of the integral photometric gives the results of determination of the main photometric constants for Mercury. ... THE PHOTOMETRIC RESEARCHS OF THE MERCURY'S SURFACE: S.G. Pugacheva The surface brightness of the Mercurian images was established on the geologic map Mercury. ...

... Telescopes . ... The spectrograph is installed in the Nasmyth focus of the BTA telescope, the equivalent focal length is 186 m (F/31). ... The preslit device unit is marked by number 3. ... Fig. ... slit unit of the MSS, 4.1 ? ... The spectrograph slit unit consists of a mirror that redirects the light beam from the Z axis and from the calibration path at an angle of 65њ to the axis of the telescope focus into the slit, the order separation filter, the block of the slit and the shutter (Item 4 in...

Astronotes Armagh Planetarium's Stellar Blog! ... Monthly Sky Notes . ... Image credit: Julie Thompson / Armagh Planetarium) . ... These seven entrants and their class have won a free trip to the Planetarium.€а All entries are on display in our Exhibition Area.€а A number have been included in a special Christmas trailer running before all shows in our Digital Theatre throughout December so why not check out the works by the countryтАЩs budding new artists this Christmas break at Armagh Planetarium? ...

New GCVS Version (GCVS5) FileName Explanations ----------------------------------------------------------------- ReadMe This file GCVS5 The ... ------------------------------------------------------ 1- 2 I2 --- Constell [1/88]Constellation numeric code 3- 6 I4 --- Number Star number within the constellation 7 A1 --- Component *Component identification 9- 18 A10 --- GCVS * Variable ... Field is non-blank if magMin is a magnitude or amplitude given in a system other than that indicated by magCode. ...

... Another significant contribution to the crystal energy of metals is the electron-ion interaction or the electron bandstructure energy (E BS ) which is defined by the interaction of valence electrons and the Brillouin zone (BZ) planes. ... The program BRIZ has been developed for 3D visualization of Brillouin zone configurations and intersections of BZ planes with a Fermi sphere[4]. ... 1.75 (electrons/atom). ... 4] Degtyareva V.F., Smirnova I.S.: BRIZ: a vizualization program for Brillouin zone ? ...

... The INPUT element is used for a wide variety of different kinds of entry fields within HTML fill-out forms. ... These are used for entering short text strings, like peoples names, numbers and dates. ... The NAME attribute is used to identify the field when the form's contents are converted to the name/value list. The VALUE field can be used to initialize the text string. ... The VALUE attribute can be used to initialize the text field for these users. ... It defaults to TEXT. ... NAME . ...

... Residual , Annual(m) = A0 + (Ais sin m + Aic cos m) , = l( 2/12 ; Trend(m) = (0 + c cos(m ­ tr)) L(m) , L(m) ­ d( L( L( - ; QBO(m) = (k01 + kc1 cos(m ­ QBO)) QBOI(m) ; .. ... Calculated decadal average O3 volume mixing ratios [ppbv] at the earth surface for TM3 1990s CLE (upper) and at the for (upper) STOCHEM 1990s CLE (). Fig. 11a. Decadal averaged ozone volume mixing ratio differences [ppbv] comparing the 2020s and 1990s for TM3 CLE (upper) and STOCHEM CLE (). ... 1:5) 180 /3 2003 . ...

STEP INTO THE BLUE - MEADE INSTRUMENTS PRODUCT GUIDE . ... Telescopes . LX850 Series . ... From its introduction in 1992, the LX200 has always been a product for which all others compared to. ... 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 . SolarMax II Solar Telescopes . ... Double Stacking Units . ... Coronado Accessories . ...

... Бренд: Unit, Номинальная мощность: 550 - 900 Вт, Насадки: насадка-терка, Особенности: защита двигателя от перегрузки, Цвет корпуса: черный . ... Артикул:1960601001600ЧЕРНЫЙ Стиль:Casual Сезон:ДЕМИСЕЗОН Цвет:Черный Высота каблука:Низкий каблук Материал внешний:Велюр, лакированная кожа Материал подкладки:Натуральная кожа Материал подошвы:Натуральная кожа, резина . ... Тип: Полусапоги . Внутренний Материал: Натуральная кожа . Материал: Велюр . Полусапоги . ... Размеры:150х210 . ...

... For certain blo ck diagram (var. 1) and time of working cycle ( = 1 hour) find reliability function P (S ) and operating time to failure Tf (S ). ... Write answers on following questions: · May operating time to failure for system is increased twice by changing failure rate for element number 1? ... Change trim effect mechanism such, that 5 = 0, 2 · 10-6 1/h, then S = 3, 15 · 10-6 1/h, and operating time to failure for yaw control system Tf = 0, 32 · 106 h, reliability criterion is executed. ...

Statistics of sunspot activity . The sunspot indices . ... Visual indices of solar activity . ... n - number of spot groups . A - Waldmeier class of unipolar spot groups without penumbra . B - class of bipolar spot groups without penumbra . C - class of bipolar spot groups with one penumbra pole . D - class of small bipolar spot groups with two penumbra poles . E - class of middle bipolar spot groups with two penumbra poles . ... H - class of unipolar penumbrated spot groups . ...

Below is a set of newsgroup posts made by an engineer from DEC in response to queries about how to modify DEC's Digital Unix OS for more heavily loaded web sites. ... Our experience (running such Web servers as altavista.digital.com and www.digital.com ) is that there is one important kernel tuning knob to adjust in order to get good performance on V3.2C. You need to patch the kernel global variable "somaxconn" (use dbx -k to do this) from its default value of 8 to something much larger. ...

I/146 Positions and Proper Motions (Roeser+ 1988) ================================================================================ Catalogue of Positions and Proper Motions Roeser S., Bastian U. =1988A .. ... 449R ================================================================================ ADC_Keywords: Positional data; Proper motions Description: PPM North gives J2000 positions and proper motions of 181,731 stars north of -2.5 degrees declination. ... The mean epoch is near 1931. ...

... John Herschel Glenn, Jr. ... Glenn also holds the Navy Unit Commendation for service in Korea, the Asiatic-Pacific Campaign Medal, the American Campaign Medal, the World War II Victory Medal, the China Service Medal, the National Defense Service Medal, the Korean Service Medal, the United Nations Service Medal, the Korean Presidential Unit Citation, the Navy's Astronaut Wings, the Marine Corps' Astronaut Medal, the NASA Distinguished Service Medal, and the Congressional Space Medal of Honor. ...

... Exposure Time Calculator (ETC) . ... ESO - Public Surveys . ... the recommended values to use for DIT, . ... Detector on-chip integration (DIT): seconds. to your chosen value - a separate page gives recommended values to use for DIT - for modes 1 and 2 below you may wish to start with the maximum recommended values as these will minimize the effect of read noise (a total object exposure of Y secs with DIT=X secs will produce Y/X lots of read noise) and give you a lower limit on the time needed. ...

... Астронет | Картинка дня | ... планета Астронет | ... The distribution of neutral hydrogen in the Andromeda. The numbers correspond to the amount of neutral hydrogen in the line of sight in units of 10 20 atoms cm -2 . ... The distribution of neutral hydrogen in the Magellanic system. ... The distribution of neutral hydrogen in the NGC 4631-4656 system. ... Поздравляем с юбилеем Родионову Жанну Федоровну . Рашид Алиевич Сюняев (к семидесятилетию со дня рождения) . ...

... Tonight's Sky . ... Observing . ... Sky this Month . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Open cluster NGC 2818, spiral galaxy NGC 2964, and spiral galaxy NGC 2976 . ... Observing Podcasts . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... University of Warwick, Coventry, United Kingdom . ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

The AstroGuide . ... AstroGuide | ... AstroGuide Listing . ... See many more Astronomy Listings by: Category or Alphabet . Nice place to find latest astronomy information. It is updated the first of each month. ... Web Site . ... Posted by bchilson, June 24th, 2002 . ... Additional Information . ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . are trademarks of John Huggins ...

The starting page - The catalogues page - The list of the PUL2 fields - The list of the Pul-3(Pul-3SE) fields - The list of the PUL_ERS fields . please read short description of the access form controls . ... Right Ascension (ICRF/Tycho-2) J2000 at the central epoch of obs. (hours, minutes, seconds) (Obligatory parameter) . ... proper motion in RA (*cos(DE)) (ICRF/Tycho-2). (mas/yr) . ... Check the apropriate checkbox to output these data and radiobutton to select stars within interval. ...