... Bad Astronomy . ... I think I will break from my usual format of Bad Astronomy/ Good Astronomy by saying that the way we define seasons currently is not strictly bad, but I feel (in my opinion!) that it could be better. The definition of when the seasons begin is at the moment of solstice or equinox; that is, winter (in the north) starts on December 22 nd and summer starts on June 22 nd . ... Now imagine breaking up the Sun's 46 degree up-and-down yearly swing into 1 day intervals. ...

National Aeronautics and Space Administration . ... Bruce McCandless II (Captain, USN, Ret.) NASA Astronaut (former) . ... He was a member of the astronaut support crew for the Apollo 14 mission and was backup pilot for the first manned Skylab mission (SL-1/SL-2). ... A veteran of two space flights, McCandless has logged over 312 hours in space, including 4 hours of MMU flight time. ... With the completion of this flight McCandless logged 191 hours in space (including 4 hours of MMU flight time). ...

NOTE: The storm sudden commencement data file was updated on 18 Feb 1998. o Revised data for 1968-1975 were taken from IAGA Bulletin No. ... Indices aa and storm sudden commencements"; see also IAGA Bulletin 39: " Supplementary Geomagnetic Data 1957-1975", including a new list of ssc's 1968-1975). ... From the monthly reports of Rapid Variations prepared by 43 magnetic observatories (see list page 121), a combined list of all events is compiled. ...

... During and after the project, the student response was tremendous. ... I invite you to view what the class did with the terraforming project. ... These pages contain only portions of the entire project, since some of the presentations were purely verbal, and I was remiss in collecting all the speeches. The Mars Project student website . ... I think that it can be stressful to students to have such a large project to work on when they don't know what it's worth to them. ... previous page | ...

The 6th INTEGRAL Workshop . The Obscured Universe . Space Research Institute, Moscow, Russia . July 2-8, 2006 . Workshop Information: . ... Travel support . ... SAC/LOC . ... The 6th INTEGRAL (International Gamma-Ray Astrophysics Laboratory) Workshop ``The Obscured Universe'' changed its location announced in the first circular and finally will be held at the Space Research Institute (IKI), Moscow, Russia on July 2-8, 2006 (the working days July 3-7). ... INTEGRAL Workshop LOC) . ...

... Tonight's Sky . ... News . Observing . ... Supernova showered Earth with radioactive debris . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... Supernova simulations reveal new processes . ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

Balance Sheet was approved by the Corporation's Annual General Meeting held . ... Balance . ... Annual Report on the Corporation performance for 2002, the Annual Balance Sheet, including Income statements (Profit-and-Loss Accounts); . ... Board of Directors' proposals: . ... In addition, the Annual General Meeting has elected the following membership of the Corporation's Board of Directors: . ... Board of Directors . Balance Sheet 1997 | ... Official WEB-site of S.P.Korolev RSC Energia . ...

... The International Space Station Expands Again . ... Beagle Crater on Mars . ... What have we found on the way to large Victoria Crater? Smaller Beagle Crater. The robotic Opportunity rover rolling across Mars stopped at Beagle Crater early last month and took an impressively detailed 360-degree panorama of the alien Martian landscape. ... Eris: The Largest Known Dwarf Planet . ... Currently, the largest known dwarf planet is (136199) Eris, renamed last week from 2003 UB313. ...

Next: Restoring files with tar Up: Simple backups Previous: Simple backups . A full backup can easily be made with tar љ : # tar -create -file /dev/ftape /usr/src . ... If your backup doesn't fit on one tape, you need to use the -multi-volume ( -M ) option: # tar -cMf /dev/fd0H1440 /usr/src . ... usr/src/ . ... usr/src/linux-1.2.10-includes/ .. ... An incremental backup can be done with tar љ using the -newer ( -N ) option: # tar -create -newer '8 Sep 1995' -file /dev/ftape /usr/src -verbose . ...

... Fitting the observed dependence includes calculations of the polarization cross-sections averaged over particles orientation and size distribution, their normalization and the comparison of obtained dependencies with Serkowski's curve representing observational data for a chosen star. ... Variations of the polarization factors with wavelength are shown in Fig. 16 for homogeneous spheroidal particles with PF orientation. ... The distinction between prolate and oblate spheroids is also clearly seen. ...

ARI USEFUL LINKS modified and/or upgraded by YP (Jul 1, 2015) . Astronomy . ... Astronomy related journals . ... Go to TOP . ADS ( UK , US or French site) . Abstracts from the major Astronomy journals. ... Astronomy Picture of the Day . ... Astronomy and Astrophysics (Bertout's site). status of a paper . ... of Stellar Spectra by R.O.Gray and VISUAL atlas (as pdf) . ... A list of Astronomy databases from the well organised canadian site. ... Astronomy jobs.../courses Go to TOP . ...

Astronotes Armagh Planetarium's Stellar Blog! ... Space Flight . ... Posted on October 30, 2014 | 5 Comments Humans have been exploring mysterious lands and faraway civilizations for hundreds of years ever since they had the ability and knowledge to do so.€а A curiosity and a desire to [ ] . Continue Reading.. Posted on May 28, 2014 | ... 1 Comment Comets are frozen lumps of ice (often called volatiles) and rock that come from distant parts of our Solar System. ...