... It has been established that the transition from the background magnetic field to the fields of an active region occurs near 25­50 G. A dependence of the exponent H on the magnetic field amplitude has been derived. The exponent H for the background magnetic field has been found to be much smaller than that for the fields of an active region. ... Fig. ... As follows from the estimates of Fig. 3, the exponent H is 0.5­0.7 for the magnetic fields of an active region and 0.1 for the background field. ...

... Bad Astronomy . ... Every few months, one of a series of questions comes up on the USENET group sci.astro involving tides, or the rotation of the Moon, or the recession of the Moon from the Earth. ... Why the Moon's rotation period is the same as the length of time it takes to orbit the Earth (same as number 1, but phrased differently). ... But when this happens, the time it takes for the Earth to rotate once will be slowed to exactly the same time it takes for the Moon to go around the Earth once! ...

... 7 EPSC2012-52 2012 European Planetary Science Congress 2012 c Author(s) 2012 E P SC European Planetary Science Congress Properties of the impact-produced lunar exosphere during Perseid 2009 meteor shower A.A. Berezhnoy (1), O.R. Baransky (2), K.I. Churyumov (2), T.K. Churyumova (2), V.V. Kleshchenok (2), E.A. Kozlova (1), V. Mangano (3), V.O. Ponomarenko (2), Yu.V. Pakhomov (4), V.V. Shevchenko (1), Yu.I. Velikodsky (5) (1) Sternberg Astronomical Institute, Universitetskij pr., ... 12/13, 2009. ...

... Printed in U.S.A. THE MOTIONS OF THE HARD X-RAY SOURCES IN SOLAR FLARES : IMAGES AND STATISTICS Sergey A. Bogachev and Boris V. Somov Astronomical Institute, Moscow State University, Universitetskij Prospekt ... the basis of the Yohkoh Hard X-Ray Telescope ( HXT ) data, we present a statistical study of different types of the hard X-ray ( HXR ) source motions during solar flares ... Type I motion of HXR sources in flares. them, the HXR sources systematically moved during flare. ...