... These Facts and Questions pages mainly tell you how to use the Aberrator-interface and also explain the nature of the aberrations. ... Airy disc: the brightest spot of light when you look at a star in focus. This disc can contain a maximum of 84% of all the light that arrives from a star (perfect refractor telescope). MCT : Maksutov-Cassegrain telescope. A closed-tube mirror-telescope with a secondary obstruction. Less common than the SCT, this telescope uses a corrector (real glass). ...

... 108 ї тО,,ЛМ Д.е., 1996 лйкйлйЗлдав йЕкДбйЗДнЦгъзхв ЬмкзДг, <6, 1996 оабауЦлдДь йлзйЗД щооЦднД лЗЦнйазСмсакйЗДззйЙй СкЦвоД ЙДбйЗ , , , , . ... тДгДЙаз Д.е. щооЦдн лЗЦнйазСмсакйЗДззйЙй СкЦвоД ЙДбйЗ 109 . ... 110 лйкйлйЗлдав йЕкДбйЗДнЦгъзхв ЬмкзДг, <6, 1996 f1 (v x ) j j 0 + j1 = 0, (6) 0 f0 (v x ) /k v x . ... 5) , тДгДЙаз Д.е. щооЦдн лЗЦнйазСмсакйЗДззйЙй СкЦвоД ЙДбйЗ 111 . ... 112 лйкйлйЗлдав йЕкДбйЗДнЦгъзхв ЬмкзДг, <6, 1996 . ... тДгДЙаз Д.е. щооЦдн лЗЦнйазСмсакйЗДззйЙй СкЦвоД ЙДбйЗ 113 ), . ...

New reduction of minor planets photographic plates obtained with Pulkovo Normal Astrograph A.A. Berezhnoy Pulkovo Observatory of RAS, Saint-Petersburg, Russia Minor Planet observations at Pulkovo Periodical observations of 14 bright asteroids named Selected Minor Planets (SMP) were performed at Pulkovo since 1948 within the international framework started by works of B.V. Numerov and D. Brouwer. ... 108 133 113 74 124 67 97 88 14 84 64 5 20 19 Epochs (YYYY.MM) 1200 Mean values of total obs. ...

... SB, Porb = 55.9212d. V0745 Cas| ... Component B of the double system observed brighter than in the Hipparcos Input Catalogue. ... The variability may be due to the fainter component. ... Type ELL: is also possible. pi Cas| ... Variability type and spectral type (F2/F3Ib/II) do not agree. ... Variability type and spectral type (F3/F5II) do not agree. ... Variability may be due to component B. VZ Pic| ... Variability may be due to component B. V1377 Ori| ... SB, Porb = 9.073d. V0421 Cep|105091| ...

... Официальное зеркало Astronomy picture of the day на сервере NASA ?? ... написанным профессиональным астрономом . ... Слухи о странной Вселенной . ... Во-первых, энергия, связанная с лямбда-членом, очень непохожа на другие известные составляющие Вселенной, во-вторых, наблюдения накладывают жесткие ограничения на возможные значения космологической постоянной , и, наконец, для объяснения ранее полученных данных вполне успешно применялись гораздо менее странные космологические модели без лямбда-члена. ...

RADIOASTROPHYSICAL DEPARTMENT • INSTITUTE OF SOLAR-TERRESTRIAL PHYSICS RAS SB . ... SSRT - Possibilities of observing . ... Investigations of the SSRT 5.7 GHz radio maps in conjunction with images obtained in other emission ranges, suggested the following conclsions: . ... Solar images obtained in line H a ;(on the left, 16:11 UT, Big Bear observatory) and in the microwave emission (on the right, 04:04 UT, SSRT) 4 march 1997 . ...

... Home Observing Carl Schurz Park . ... Beyond New York City . ... The€а Amateur Astronomers Association of New York€а hosts€а observing sessions,€аfree and open to the public , one€а Friday night€а each month from€а April through October€а at€а Carl Schurz Park €аin Manhattan.€а Carl Schurz Park €аis located along East End Avenue€аat the end of East 86th Street.€аThe park has a lovely view of a lot of sky above the East River, Roosevelt Island, Queens, and the Queensborough and Triborough bridges. ...

... Exposure Time Calculator (ETC) . Survey processing . ... VISTA is a 4-m class wide field survey telescope for the southern hemisphere, equipped with a near infrared camera (1.65 degree diameter field of view at VISTA's nominal pixel size) containing 67 million pixels of mean size 0.34 arcsec and available broad band filters at Z,Y,J,H,K s and a narrow band filter at 1.18 micron. A wide field visible camera, if constructed, could also be used on VISTA. ... Tile . ... ESO VISTA Public Surveys . ...

... ADC_Keywords: Galaxy catalogs ; Nonstellar objects Description: NGC 2000.0 is a modern compilation of the New General Catalogue of Nebulae and Clusters of Stars (NGC), the Index Catalogue (IC), and the Second Index Catalogue compiled by J. L. E. Dreyer (1888, 1895, 1908). ... The order of the new catalog is strictly by right ascension, the NGC and IC objects being merged into one machine-readable file. ... The book also contains a table of right ascensions for NGC and IC objects. ...

... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... News . Science news . ... August 7, 2015 "Rosetta" found a "solar shield" in the tail of Churyumov-Gerasimenko comet . ... August 7, 2015 Astronomers saw how lithium was born during new stellar flares . ... June 1, 2015 Astronomers found "vampire" planet in Andromeda constellation . June 1, 2015 Russian astronomers found "nano" black holes in distant galaxies . ... 2015 JSC "S.P. Korolev RSC "Energia" . ...

... A non-linear relationship is observed between the sky brightness on clear and overcast nights, with a change in behavior near the rural to urban landuse transition. ... The great variation in skyglow radiance observed from site-to-site and with changing meteorological conditions underlines the need for a long-term international monitoring program. he introduction of artificial light has caused an unprecedented disruption to the nighttime environment over large areas of the Earth. ... Data processing...

... About meteorites . ... Meteorite Encyclopedia . ... About laboratory . ... On the night of September 24-25, in the north of Irkutsk Oblast, local residents saw a brightly glowing space object draw a line across the sky and fall into the taiga. ... But scientists learned of the heavenly visitor only on October 3, when a fax arrived at the Institute of Sun And Earth Physics from Bodaibo. ... The first thing we did was to interview residents of villages located along the meteor's flight path. ...

... VaST is a software tool for finding variable objects on a series of astronomical images. ... VaST performs object detection and aperture photometry using SExtractor on each image, cross-matches lists of detected stars, performs magnitude calibration with respect to the first (reference) image and constructs a lightcurve for each object. ... VaST FITS image viewer ./pgfv . ... Part I" PZP, vol. ... K. V. Sokolovsky, S. A. Korotkiy; "New Variable Stars Discovered by the NMW Survey" PZP, vol. ...