... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. September 3, 1997 . A Partial Eclipse in Southern Skies . ... Explanation: Location is everything, especially if you want to see a Solar Eclipse . ... He used a video camera equipped with a teleconverter and solar filter. This Solar Eclipse was a partial one, seen here near maximum for Staiger's location. ... About APOD > . ...
... 2001 January 18 . 2001: A Total Lunar Eclipse . ... Explanation: The first and only total lunar eclipse for the year 2001 occured on the evening of January 9/10 as the full Moon glided through Earth's shadow. ... The fact that the northern (top) portion of the eclipsed Moon is clearly brighter, even near mid-totality, demonstrates that Earth's shadow is not uniformly dark. Tomorrow's picture: Black Holes Are Black . ... About APOD | ...
GCVS Variability Types and Distribution Statistics of Designated Variable Stars According to their Types of Variability ======================================================================== I. GCVS Variability Types. ... Amplitudes usually do not exceed 0.1 mag. ... RR Variables of the RR Lyrae type, which are radially-pulsating giant A-F stars having amplitudes from 0.2 to 2 mag in V. Cases of variable light-curve shapes as well as variable periods are known. ... RV Variables of the RV Tauri type. ...
This page is devoted to information on Supernova 1999gn in NGC 4303 (= M61 ) Basic information on this SN, including the last reported brightness, on this Supernova can be found on the main supernova page. Information on the original web pages for many of these images can be found on the Supernova links web page. ... SEDS has a Supernova 1999gn page . ... Seiichi Yoshida has a 1999gn page . ... Kopernik 's M61 and supernova 1999gn page . ... vsnet-alert 3835 ] SN 1999gn in NGC 4303 = Messier 61 . ...
... 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| ...
... The distance scales of the objects are matched both by comparing the first derivatives of the angular velocity determined separately from radial velocities and proper motions and by the statistical-parallax method. ... Good agreement between the inferred 0 and our calculations based on space velocities suggests that the Lindblad relation holds throughout the entire sample volume. ... Brandt and Blitz (1993) published the distances and radial velocities for a total of 206 H II-regions. ... Astron. ...
... Сайты о планете Марс . ... Так, "марсианские" сайты занимают почти половину всех планетных линков на Yahoo - http://dir.yahoo.com/Science/Astronomy/Solar_System/Planets/Mars/ Существует веб-ринг сайтов, посвященный Марсу - http://www.iag.net/~crs/mars/ring.htm ; есть сайты не только с подборками линков о Марсе, но и чатами на марсианские темы - http://www.iag.net/~crs/mars/ , кое-где вы сможете поучаствовать и в обсуждениях проектов колонизации и освоения Марса - http://library.thinkquest.org/19455/...
... Here is a brief outline of the current theory of the events in the early history of the solar system: . A cloud of interstellar gas and/or dust (the "solar nebula") is disturbed and collapses under its own gravity. ... The gas cools off enough for the metal, rock and (far enough from the forming star) ice to condense out into tiny particles. (i.e. some of the gas turns back into dust). ... Once the larger of these particles get big enough to have a nontrivial gravity, their growth accelerates. ...
Shades of Deep Purple (USA: Tetragrammaton 1968 ; Europe: EMI Parlaphone 1968 ; Japan: Polydor 1968) (CD) . Deep Purple's debut album, recorded very hastily. ... Tracks: . ... Wring That Neck (Blackmore/Lord/Simper/Paice) . ... All tracks written by Blackmore/Gillan/Glover/Lord/Paice . ... Painted Horse (Blackmore/Gillan/Glover/Lord/Paice) . ... Child in Time (Live, 690924) (Blackmore/Gillan/Glover/Lord/Paice) . ... Bonus tracks on Japanese CD: Lazy (edited) (Blackmore/Gillan/Glover/Lord/Paice) . ...
Local Weather information(Mirror) . ... UofI - The Daily Planet . Real time weather . PLANET EARTH HOME PAGE . Weather Information . ... Current weather maps/movies . Weather movies . ... TIME Daily news . ... International press (Links of the editorial office 'Der Spiegel') . International press (Links of Gerben Vos) . ... White House Press Release . ...