Make a copy of your shell start up file before editing it to change environment or shell variables. You can always return to using this copy if you find that the modified file is not working and you are unable to fix the problem. For example: cd cp .profile old_profile ue .profile . The first command changes you to your home directory, where a copy of the file .profile is made in old_profile . ... To revert to using the original .profile you simply copy it back. ...

... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . ... Slacker Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Life Under the Moon . ... Seeing Jupiter's Moons . ... Time Zones and the Spherical Earth . A Companion to the Earth? ... December 19, 1999) . ... Big Moon, Little Moon . ... How Big is the Moon? ... 14, 2000) . ... 2008 Phil Plait. ... Subscribe to the Bad Astronomy Newsletter! Talk about Bad Astronomy on the BA Bulletin Board! ...

Next: NICMOS/HST H-band (F160W) Images Up: NICMOS Science Previous: HST NICMOS Observations of . ... Observations of P . ... The NICMOS team has devised a comprehensive program of observations of the Galactic Center. ... Data in hand give a first look at variability and a detailed look at the search for the tip of the main sequence will be discussed where NICMOS has demonstrated adequate sensitivity and photometric precision to identify likely O8-B1 stars at the Galactic Center. ...

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... Jay Apt (Ph.D.) . NASA Astronaut (Former) . ... PUBLICATIONS: Dr. Apt shared his images and knowledge in the publication Earth in Orbit : NASA Astronauts Photograph the Earth , written in conjunction with NASA scientists Michael Helfert and Justin Wilkinson and published by the National Geographic Society. ... From 1976 to 1980 he was a staff member of the Center for Earth & Planetary Physics, Harvard University, supporting NASA s Pioneer Venus Mission by making temperature maps of Venus from Mt. ...

. Comment on J1325-4301 . Our image, limited by the short observing time, shows symmetrical structure elongated in the NE-SW direction which is not useful to study the details of this complex source. High dynamic range images of this source are published by Tingay et al. (1998). VLBApls home page . Last modified: 16 Oct 2000

Shematovich, V.I . ... Shematovich, V.I., and Bisikalo, D.V. Kinetic simulation of rarefied gas in the aeronomy problems. ... Shematovich, V.I., Bisikalo, D.V., and Gerard J.-C. Superthermal particles in the planetary atmospheres. ... Shematovich, V.I., Bisikalo, D.V. Nonequilibrium processes in the planetary and cometary atmospheres. A kinetic approach to modeling, . ... Shematovich V.I., Gerard J.-C., Bisikalo D.V., and Hubert B. Thermalization of O(1D) atoms in the thermosphere ( abstract ). ...

... Sun images . ... Sun flares . ... Active areas . September : 2015 . ... The following regions with sunspots can be now observed on the Sun's surface . Group number . ... Group length (in degrees) . ... Coordinates and other characteristics of active regions are issued for September 09, 2015 00:31 UT The following H-alpha plages without spots can be currently observed on the Sun's surface . ... Coordinates and other characteristics of active regions are issued for September 09, 2015 00:31 UT . ...

... Observing . ... Solar Observing . ... April 3 (SUN) - Solar Observing, Central Park , Manhattan . ... APRIL'S SKY . ... Lecture Series at the American Museum of Natural History The Amateur Astronomers Association is proud to present an astronomy lecture series from October through May each year for our members and the .. ... The€аAmateur Astronomers Association of New York€аwas organized in 1927 to promote the study of Astronomy, emphasizing its cultural and inspirational value. ...

Verkhoglyadova O.P., V.N. Ivchenko, K. Kudela, M. Slivka, V.N. Lutsenko, S.A. Romanov "Approach to identification of the tail plasma regimes using INTERBALL-1 data" // Czech. ... Yermolaev "Observation of vortical motions and compressional waves in the dawn low-latitude sheet" // Journal of Technical Physics, 1999, v.XL, No 1, p.325-328. ... Martiushov V. "A point explosion inside a cavity with power-law density distribution" // 6 th Open Young Scientists' Conference on Astronomy and Space Physics. ...

... Тип: мешок, . Тип мешка: одноразовый, . ... Водонагреватели проточные . ...

... 8, ``Celestial Mechanics'', 2002 Celestial Mechanics in Internet --- Russian web­site V. S. Ural'skaya, N. V. Emelianov Sternberg Astronomical Institute, Moscow, Russia Our main goal is to create a professional site in Internet, containing ephemeris service, database of observations, bibliographic references and information on natural satellites of planets. ... Up to now, the drawing up and the presentation in Internet of the information on natural satellites of planets in Russian are completed. ...