... milky way . ... The Milky Way contains at least 100 billion planets according to survey . ... This artist's illustration gives an impression of how common planets are around the stars in the Milky Way. ... Our Milky Way Galaxy contains a minimum of 100 billion planets according to a detailed statistical study based on the detection of three extrasolar planets by an observational technique called microlensing. ... Only registered members of Astronomy.com are allowed to comment on this article. ...

... The following factors that affect the final accuracy of the reflecting surface in ground conditions were considered to be the most important: the accuracy of manufacturing of the central mirror and lobes , the accuracy of their installation on the spacer , the accu racy of systems of weight unloading (the weight unloading of lobes during their manufacturing and assembly of the reflector as a whole), the ... Stan dard deviations of lobe surfaces were 0.13­0.21 mm. ...

... 30.12.2007 . ... Credit: Raymundo Aguirre Explanation: Normal cloud bottoms are flat because moist warm air that rises and cools will condense into water droplets at a very specific temperature, which usually corresponds to a very specific height. After water droplets form that air becomes an opaque cloud. Under some conditions, however, cloud pockets can develop that contain large droplets of water or ice that fall into clear air as they evaporate. ... Publications with keywords: clouds . ...

... java.lang.Object ij.gui.Roi ij.gui.Line . ... public class Line . ... int . ... protected double . ... Constructor Detail public Line (int ox1, int oy1, int ox2, int oy2) . Creates a new straight line selection using the specified starting and ending offscreen integer coordinates. public Line (double ox1, double oy1, double ox2, double oy2) . Creates a new straight line selection using the specified starting and ending offscreen double coordinates. public Line (int sx, int sy, ImagePlus imp) . ...

... Science User Portal . ... ESO, the European Southern Observatory . ... Travel and Contacts . Travel to ESO Headquarters . ... Travel to E-ELT Armazones . ... Survey Telescopes . ... Star Clusters . ... 2009 . ... Stars@ESO . ... ESO Science Newsletter . ... ESO 3.6-metre telescope . ... MPG/ESO 2.2-metre telescope . ... ESO 1-metre Schmidt telescope . ... The VISTA mirror . ... Catch a Star 2013 . Catch a Star 2011 . ... 1993 - Engineers placing the VLT M1 Mirror in its Container Credit: . ...

... What is Planetary Protection? ... Although the probability is low because of the harshness of space environments, it's possible that "hitchhiker" bacteria and other organisms transported on spacecraft and equipment might cause irreversible changes in the environments of other planets or interfere with scientific exploration for life (forward contamination). ... Planetary protection policies for space exploration are like environmental, health or safety policies on Earth. ...

... PUL2 catalog contains original absolute proper motions of 59646 stars in 149 fields with galaxies. ... Mean errors of relative proper motions in PUL2 catalog is 5.5 mas/year. ... The external mean error of one relative proper motion of a bright star of PUL2 catalog is 9 mas/year for both of coordinates. ... After issue of UCAC2 catalog, we decided to improve accuracy of proper motions, using Pul-3 coordinates (of 1950s) as the first epoch, and UCAC2 coordinates as the second epoch. ...

... Shockproof Plastic Battery Storage Box Container Case for 16340 / CR123A Battery . ... Package Contents: 1 x Battery Case, 1 x Strap, 1 x Keyring, 1 x Carabiner . ...

To order one of the possible additional functions use list box at the top left of the Select elements dialog box. ... On each element El in this column one can impose selection conditions of the types . ... El >= B AND El <= C. If B > C, then selection will contain all minor planets with element El complying with disjunction of conditions: . ... If conditions are imposed on several elements, then selection contains only those minor planets, which satisfy all requirements. ...

We have analyzed the UV continuum light curves of 2535 pixels obtained during fifteen separate observations of active regions with the Ultraviolet Spectrometer and Polarimeter (UVSP) on board the solar maximum mission in 1989. ... The distribution N(v), which describes the number of pixels having maximum power at frequency v, is strongly concentrated in the 2 - 5 mHz band with a distinct maximum at 3 - 3.5 mHz. ... No clear correlation is found between the maximum power and the count rate in a pixel. ...

Blackholes2 Forum Message . ... Post . ... A Field Does Not Contain Energy? ... Post Message | ... Here are two sites of many which use rest mass terminology. http://www.iop.org/EJ/abstract/0026-1394/41/5/S04/ . ... This site refers to the energy contained in a static gravitational field. http://www.ias.ac.in/currsci/mar25/articles27.htm . ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

Russian Space Science Internet (RSSI) is a successful result of RSSI Project. ... space oriented organizations; . ... RSSI offers for its members : . ... videoconferences via MBONE Internet protocol (there are 2 tunnels available now through the general IP network: one to NASA Internet, and another to Moscow State University); . ... It is designed so that all organizations connected to the RSSI gain access to the resources of Russian computer networks as well as world wide Internet. ... nic@rssi.ru ...

INTERNATIONAL ISO WD STANDARD Working draft ______________________________________________________________ Space environment (natural and artificial) Earth's ionosphere and plasmasphere. ... In the present International Standard the appendixes A and B are of informative nature only. ISO WD CONTENTS 1. ... Information presented in the each table about mean values of Ne, Te and Nu includes: - information line (first); - mean values of one of parameters for conditions given in the information line. ...

... Heracles Triplane and Aerospace Systems . The key characteristics of two-stage aerospace systems are determined according to speed and carrying capacity of the aircraft-carrier used . ... So the SPIRAL system hypersonic carrier was expected to launch the second stage by weight 63 tons at a speed corresponding to 6M; whereas launching weight of the MAKS system orbital stage with the use of the An-225 MRIYA heavy subsonic aircraft reaches 275 tons, and the HERACLES aircraft - 450 tons. ...

My research is focused on applications of the mathematical language of geometric algebra. ... Geometric algebra can be applied to any subject in mathematics, physics or engineering which is in some part rooted in geometry. ... A black hole has a spectrum of gravitational bound states in much the same manner as the Hydrogen atom. These have only recently been determined, and are contained in the paper Bound States and Decay Times of Fermions in a Schwarzschild Black Hole Background . ...

Aristarch is Copernic of Classic World. ... First Aristarch determined the fact for how many times the Sun was father then the Moon and then he compared the Sun and the Moon with the Earth. ... Only the Moon rotates around the Earth. ... Gipparch suggested that the Sun turned around the Earth steady and in circumference but the Earth is displaced according its centre. ... The orbit point in which the Sun is nearer to the Earth Gipparch called perigee and the most remote one he called apogee . ...

Databases (NSDC) of the Natural Planetary Satellites. ... In the file of explanations, source of data or bibliographic reference is indicated. ... File of data (Data) *.txt. ... Les donnИes standard de la base NSDB (Standard Data) . ... Any bibliographic reference has the following fields (please, don't mix up these reference fields hereafter called "fields" with the search fields where you will enter the data and which are hereafter denoted as "search fields" or "text fields"): . ...

... Style sheet . ... Style sheets may have three different origins: author , user , and user agent . ... User . A user is a person who interacts with a user agent to view, hear, or otherwise use a document and its associated style sheet. ... A user agent that inputs style sheets must respect points 1 - 3. ... A user agent that renders a document with associated style sheets must respect points 1 - 5 and render the document according to the media-specific requirements set forth in this specification. ...

... Space flight . Crew training . ... Space camp . ... The "Odyssey" project includes all the stages of preliminary selection and pre-flight training of the inter-planetary station crew, as well as simulates a 7-day "Earth-Moon-Earth" space mission. ... Training in crews on the "MIR" space station trainers and simulators under the interplanetary "Earth-Moon-Earth" mission program, . ... A commander (carries out a general onboard control and is responsible for the crew safety and vital activity. ...

... 2013). ... N w1 w2 1 5101.35 5101.50 2 5104.80 5104.96 3 5106.15 5106.28 4 5106.78 5106.95 5 5108.56 5108.70 6 5116.36 5116.51 7 5118.70 5118.90 8 5120.78 5120.90 9 5133.07 5133.22 10 5134.10 5134.25 11 5134.55 5134.60 12 5140.12 5140.28 13 5140.96 5141.41 14 5149.41 5149.60 15 5151.15 5151.50 16 5152.53 5152.71 17 5159.70 5160.80 18 5170.50 5170.65 19 5170.89 5171.07 20 5174.84 5175.00 21 5175.35 5175.46 22 5178.34 5178.56 23 5198.29 5198.39 ...