... Spacecraft . ... To space by cannon? Finally, the deep space explorers --spacecraft which break away from the Earth's gravity . ... The "Luna" series of the USSR conducted 7 soft landing of unmanned probes, two of them with wheeled robotic "Lunokhods," and two of those missions returned samples to Earth. Others spacecraft have visited the major planets of the Solar system. ... The Mariner series have explored Venus and Mars--and Mariner 10 even reached Mercury, for three separate encounters! ...

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• Seasons of the Year
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Next: The command line interface (TEXT CEILIDH ONLY) Up: Using Ceilidh as a Student Previous: Interpreted language exercises . ... For Question/Answer exercises you are given the following menu. Question/answer exercise menu for course "tst" unit "1" exercise "qu": vq view questions | pq print questions ans answer questions and submit | cks check submitted h help | ... To quit the exercise before answering all the questions type q as your answer. cks . ...

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... Are HVCs a common feature of star forming galaxies? ... Consider the typical properties of the smallest HVCs (compact HVCs) found in HIPASS: . Distance . HI Mass . ... At 5 kpc . meager objects ~116 solar masses . ... 1.15 x 10 4 solar masses . ... Putman et al. (2003) found none to 10 7 solar masses. 2% of Sculptor to 3 x 10 6 solar masses by de Blok et al. (2001) found none. ... High velocity gas around other galaxies can be identified from maps and dynamics: . ... 2003) . ...

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• Galactic ALFA Surveys
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... Listed below are questions submitted by users of "The Great Magnet, the Earth" and the answers given to them. ... In "The Exploration of the Earth's magnetosphere" on the magnetic environment of the Earth in space (a few Q duplicated here) . ... 11) Magnetic Shielding . ... 51) Can electricity be generated from the Earth's magnetic field? ... 9) Measuring Earth's magnetic field . ... 6) Reversals of the Earth's field (4 queries) . ... 42) Could generated electricity affect Earth's magnetic field? ...

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... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2001 October 16 . A Newly Active Volcano on Jupiter's Io . ... Explanation: Would a volcano plume discovered in January above Jupiter's Moon Io still be active months later? ... Careful inspection of the two images will show a newly prominent dark volcano surrounded by a light-colored ring visible only in the smaller, more recent image . ...

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• APOD: December 23, 1998 - Ring Around the Galaxy
• APOD: January 4, 1999 - Ring Around the Cluster
• APOD: 2007 May 16 - Dark Matter Ring Modeled around Galaxy Cluster CL0024 17

A Newly Active Volcano On Jupiters Io . ... Credit: University of Arizona , JPL , NASA Explanation: Would a volcano plume discovered in January above Jupiter's Moon Io still be active months later? ... The original plume , above the Tvashtar Catena volcanic area, was not even visible. A picture taken in January of the area surrounding the Tvashtar Catena eruption is shown above in enhanced color, with a new picture taken in August shown in the inset. ... NASA Official: Jay Norris. ...

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... What is there beyond the edge of the universe? ... This is often illustrated by newspaper headlines: "Scientist sees face of God, confirms Big Bang model" (a reference to results from the Cosmic Background Explorer satellite), "Is the cosmos younger than some of the stars it contains? ... The Lone Universe . ... We cannot reproduce it; we cannot take another one and see what happens to it; we cannot compare it to anything else, as astronomers routinely do with planets, stars, and galaxies. ...

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... We have measured this "redshift" for the pink black holes, and allowed for it in our calculations. ... We see this effect in the emission from gas around these pink black holes, but it is far too small an effect to account for the pinkness. Thus the swirling motions of gas around or into the black holes cannot produc the colour. ... At first we thought that these things were normal blue black holes hidden behind clouds of interstellar dust, that absorbed the blue light and made them appear pink. ...

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... Asteroids are awkward to photograph. Can you imagine how hard it is to spot one of these tiny, dark lumps of rock against the blackness of our night sky? ... Like Earth, asteroids move around the Sun. ... But astronomers don t give up easily, and asteroids are something they really want to study. ... The asteroid in this photograph is called Itokawa. It became famous in 2005 when a Japanese spacecraft called Hayabusa visited it and took some photographs including this one! ...

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UFO Forum Message . Forums: . ... God and Science ћ SETI ћ Software ћ UFO ћ XEphem . ... Discussion Forums | UFO Discussion and Tracking | Post . ... Question Answered . Forum List | ... Post Message | Back to Thread Topics | ... Login to Post . ... www.astronomy.net . About Astronomy Net | Advertise on Astronomy Net | ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

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... Archives . ... If you do not mind the time predictor, it is hard to believe that this is a light curve, time dependent data. ... It?s hard to say this data set is designed for time series analysis apart from the complication in statistical inference due to measurement errors. How to design the statistical study with measurement errors, huge gaps in time, and unequal time intervals is complex and unexplored. ... The following is R output without measurement errors. ... Chandra Blog . ...

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Conserved quantities. Energy, momentum, & angular momentum. ... To start with, let us look at a plot of Specific Angular Momentum versus Specific Energy for every historical comet apparition up to 1995. ... Where do asteroids fit in? ... Why do the points of one cluster group around a vertical line? ... h = angular momentum per unit mass of an orbiting body. ... Lines of constant angular momentum are "1/X" functions on a q vs (1+e) graph, but a little more complex if drawn on the above graph. ...

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... Great oppositions. ... Proxima Centauri. ... Scientists proved that the problem of preserving the Earth's climate and the annual change of seasons can be solved by a small star, negligible mass, but similar to a main-sequence star, moving in a circular orbit around the Sun. ... Sombrero Galaxy. The Sombrero Galaxy, M104, is known as a holder of one of supermassive black holes. ... Roughly estimate the approximate mass of the supermassive black hole in the center of M104 (answer in solar masses m). ...

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... Bad Astronomy . Misconceptions . ... Bad Astronomy : The Moon only shows one face to us because it is not rotating. Better astronomy : The Moon only shows one face because it is rotating, once every time it revolves around the Earth. ... Place the Moon model on the table about 30 centimeters (one foot) away with the X facing the Earth model. ... You'll see that to keep the X facing the Earth model, you have to rotate the Moon model as it goes around the Earth model . ... 2008 Phil Plait. ...

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... More on 51 Peg: . The discovery of a Jupiter--mass planet in orbit around the solar--type star 51Peg has been reported by Michel Mayor and Didier Queloz (Geneva Observatory) on October 6th at the 9th Cambridge workshop on "cool stars, stellar systems, and the sun" held at Florence (Italy). ... Recall that the measurements of radial velocity only yield v sin i which in turn gives us M sin i. For most values of i, sin i will be greater than 0.5 and this gives a mass estimate of 0.5 Jupiter masses. ...

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... Star Atlas . ... Gaseous ring around young star raises questions . ... Astronomers have detected a mysterious ring of carbon monoxide gas around the young star V1052 Cen, which is about 700 light-years away in the southern constellation Centaurus. ... This new finding raises more questions than it answers about the late stages of star and solar system formation. т??Why do turbulent motions not tear the ring apart?т?? ... Only registered members of Astronomy.com are allowed to comment on this article...

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. This quantity is the physical maximum velocity rotation corrected for inclination, expressed in km/s. It is deduced from the parameter vmaxg after correcting for inclination using incl . This rotation velocity is calculated from both the 21-cm line widths at different levels and/or the available rotation curves (generally H_alpha rotation curves). The rotation of the stellar component is given in the parameter vmaxs . HyperLeda . Questions: prugniel@obs.univ-lyon1.fr

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... Date: 13 October 2009 00:06:23 GMT+01:00 . Subject: Lectures, €а Science Cafe, IYA @ WWT, Mercury, Venus, Saturn, etc . ... IYA PUBLIC ASTRONOMY EVENT AT CASTLE ESPIE, 17 October. €а . ... Public Lecture, Armagh:€а"Why Are We Here?", 8.00 pm Thursday 22 October 2009 . ... а€а For free tickets to this public lecture, please contact Aileen McKee at the Armagh Observatory; Tel: 028-3752-2928; Fax: 028-3752-7174; e-mail: ambn arm.ac.uk. 4.€а Mercury, Venus, Saturn . ...

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... Ace the GMAT(R) with the only official study guide from the creators of the exam With 25% brand new content, The Official Guide for the GMAT Review 2016 delivers more than 900 retired questions from the official GMAT(R) exam, complete with answer explanations and a 100-question diagnostic exam to help focus your test preparation efforts. ...

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... It's not the way that you say it when you do those things to me it's more the way that you mean it when you tell me what will be and when you stop and think about it you won't believe it's true that all the love you've been giving has all been meant for you I'm looking for someone to change my life I'm looking for a miracle in my life but if you ...

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• DejaNews Document 15489.18336.:dnserver.dboct:181063
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