... 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! ...

Saturn: The beauty of the rings. Saturn . ... Belongs to the giant planets . It has no definite solid surface. ... The free fall acceleration at the Saturn surface near equator is 9,06 m/s^2 . ... In the centre of the planet the temperature is about 20000K. The satellites . ... The rings of Saturn . ... It is proved that Saturn's rings (as well as the other planet's) are the fragments of the great cloud being near the planet with million kilometres length (see how the rings were formed ). ...

. Please standby and you will be automatically connected to the new location of the unframed Supernova page. Or, click on the link above. If you have questions or problems, please email me at David Bishop dbishop@vhdl.org . Last modified: Mon Aug 27 12:40:15 EDT 2001

Finding Himalia, The Fifth Brightest Moon Of Jupiter . Articles | ... Himalia is the only moon other than the Galilean moons of Jupiter that is visible in an amateur size telescope. ... I normally use “The Sky” from Software Bisque for planning my observing sessions and in helping me find objects, but it only has the Galilean moons for Jupiter so I used Red Shift (version 3 at the time) which I also had on my computer. ... www.astronomy.net . ... dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

... To save time, I will only provide ephemerides in 2000 coordinates. ... Note: most the orbital elements used to create these ephemerides were obtained from the International Astronomical Union Circulars (IAUCs), Minor Planet Circulars (MPCs) or the ICQ Comet Handbook. ... The following 1-day ephemeris (March 1, 1997 - October 1, 1997) is from Donald Yeomans of JPL and is based on Reference Orbit #55 (March 4, 1997). 2000 coordinates (March - September, 1997) [3/4/97] . ... Epoch: 1997 Feb. 1.0 . ...

... Three ` flavours'of binning and discard: · Discard 9 rows , readout 1 row, cut 10:1, resolution 1.75ms · Discard 90 rows , bin 10 rows , cut 10:1, resolution 2.76ms · Discard 95 rows , bin 5 rows , cut 20:1, resolution 2.76ms · Compared with normal timing : · 100 rows and readout, no cut, resolution 1.75ms Bin · Tested on XMM on Crab during rev 333 - 3 October 2001 Crab - rev 333 - Bright timing ... Counting mode and FIFO full errors. ... Crab - rev 333 - Bright timing mode ...

by I.M. Chertok, V.V. Fomichev, A.A. Gnezdilov, R.V. Gorgutsa, V.V. Grechnev, A.K. Markeev, R.W. Nightingale, and D.E. Sobolev . Fig. 2. Inverted TRACE images at 195 illustrating development of the EUV post-eruption arcade with the well-organized loop, two-ribbon, and spine structures. Note that the exposures have been rescaled to the same peak intensity to show the evolution of the bright elements. The field of view is 220.5 by 182 Mm. Back to paper .

... Berezhnoi A.A., Klumov B.A., Shevchenko V.V., Fortov V.E. Collision of a comet with Jupiter: Determination of fragment penetration depths from the molecular spectra, JETP Letters, V. 63, No. 6, p. 405-410, 1996 . ... Berezhnoi A.A., Klumov B.A., Shevchenko V.V., Fortov V.E. Shock chemistry in Jovian atmosphere following SL9 impacts, International Conference on the SL9-Jupiter Collision, I-2, July 3-5, 1996, Meudon, France . ... Berezhnoi A.A., Klumov B.A. Lunar ice: Can its origin be determined? ...

... Home Observing High Line Jupiter and its moons . ... Lecture Series 2014-2015 . ... AAA Fall Astronomy Class: Astronomy Basics тАУ October-November 2015 . ... Clear Sky Chart . ... This MonthтАЩs Sky тАУ April 2015 . ... Beyond New York City . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

Comet 17P/Holmes increased in brightness over a half of million times on 2007 October 24 ( APOD 2007 October 26 ). On November 1 it was still in peak of its brightness, when I pointed at it the 25-cm telescope of my home observatory located in the Nizhnyj Arkhys, Community of the Special Astrophysical Observatory in Karachai-Cherkesia, Russia. Figure 1. Comet 17P/Holmes identified in the frame of SAO 1-m Zeiss all-sky TV camera on 2007 November 1. ... Comet is a green nonstellar object. ...

... This thread uses PINTofALE to generate a simulated Chandra spectrum. ... define a DEM . ... pset marx .par ExposureTime=50000 OutputDir='sim_ marx ' \ ; GratingType='NONE' DetectorType=' ACIS-I ' SourceFlux=-1 \ ; SpectrumType='FILE' SpectrumFile='spec_ marx .dat' \ ; SourceType='POINT' DitherModel='INTERNAL' ; marx TSTART=2006.46 ; marx2fits sim_ marx / spec_ marx .evt ; dmextract infile= spec_ marx .evt[EVENTS][(x,y)=circle(4018,4141,10)] ; [bin pi=1:1024:1] outfile= spec_ ...

... Future seminars . P a s t seminars . Seminar council . ... Computer simulations of the orbital evolution of Jupiter-family comets (JFCs), resonant asteroids, and asteroidal, trans-Neptunian, and cometary dust particles were made. ... For dust particles we also considered radiation pressure, Poynting-Robertson drag, and solar wind drag. ... The maximum probability of a collision of an asteroidal or cometary dust particle with the Earth during its lifetime was for diameter d~100 microns. ...

... Dept. for Physics of Minor Celestial Bodies . Dept. for Physics of Planetary Systems . Dept. for Solar Physics . ... Achievements . ... The theory of radiative transfer in inhomogeneous atmospheres was developed ( Yanovytskij E.G. ) . ... Calculations shown that the vertical movement of gas and aerosol in the atmosphere of giant planets with velocity w = (0.1-0.5) m/s determines the capacity of visible clouds and therefore affects their brightness characteristics (A. P. Vidmachenko). ...

... MASTER Net is 56 square degrees per 1 exposition . ... 06 Dec 2015: GRB 151205B: MASTER-NET early optical observations GCN18665 . ... 18 Nov 2015: GRB 151118A: MASTER-NET optical observations GCN18613 . ... 12 Nov 2015: GRB 151112A: MASTER-NET optical limit GCN18591 . ... 07 Nov 2015: GRB 151107A: MASTER-NET optical observations GCN18565 . ... 31 Oct 2015: Five OTs detected by Global Robotic MASTER Net ATel8232 . ... 02 Oct 2015: GRB 151001B: MASTER-NET early optical observations GCN18380 . ...

... Main page News People . ASA . Master . Master net Homepage . ... MASTER . ... About Space Monitoring Laboratory, scientific directions, instruments, contacts . ... Latest news and news archive . ... 14.05.2010 . ... All news ...

Тема : Обсерватория СОХО (SOHO), SolarMonitor и SDO, все о Солнце .. Показать сообщение отдельно . ... Re: Обсерватория СОХО и все о Солнце . ...

COMPARATIVE STUDY OF THE DUST POLARIMETRIC PROPERTIES IN SPLIT AND NORMAL COMETS NIKOLAI KISELEV Institute of Astronomy, Kharkiv National University, 35 Sumskaya Street, 61022 Kharkiv, Ukraine KLAUS JOCKERS Max­Planck­Institut fЭr Aeronomie, D­37191 Katlenburg­Lindau, Germany VERA ROSENBUSH Main Astronomical Observatory of the National Academy of Sciences, 27 Zabolotny Street, 03680 Kyiv, Ukraine (Received 7 March 2002; Accepted 21 June 2002) Abstract. ... 168 NIKOLAI KISELEV ET AL. ... 2001). ...

... In order to compare the number of different evolutionary stages obtained and X-ray luminosity of the chosen X-ray sources with the observed galactic values we use the sum of C/O+O/C , where C and O are the calculated and observed values of a given binary type, respectively. If we make comparison for a number of different binary species (for example, we compare the number of CV, number of X-ray pulsars,   total X-ray luminosity of LMXB, etc.), we write this criterion in the form: . ...

... It provides long range planning information to the scheduling team; it provides bright object, timing, and orientation information to the observation planning team; and it provides graphical description of the observations and their constraints. ... The GUI graphically displays the constraints that are computed by Spike and stored in the description files and in the database. ... BOAS processes all bright objects that have entered the database since the last time BOAS was run. ...