... Credit Copyright: NASA , JPL-Caltech , UCLA , MPS/DLR/IDA Explanation: Now at Ceres, Dawn's camera recorded this closer view of the dwarf planet's northern hemisphere and one of its mysterious bright spots on May 4. ... Imaged by Hubble in 2004 and then by Dawn as it approached Ceres in 2015, the bright spot itself is revealed to be made up of smaller spots of reflective material that could be exposed ice glinting in the sunlight. ... Dwarf Planet Ceres . The Brightest Spot on Ceres . ...

... 2005 May 10 . The First Image of an Extra Solar Planet . ... Explanation: It's the faint red object, not the bright white one that might be a historic find. ... Quite possibly, however, the red object is the first direct image of a planet beyond our Solar System . ... The faint red object 2M1207b is therefore 100 times fainter, intrinsically, than the bright white brown dwarf 2M1207a -- a characteristic well explained by a planet roughly five times the mass of Jupiter . ... About APOD | ...

... Tonight's Sky . ... The Magazine . ... Observing . ... 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 . ... Bright planets meet at dusk . ... Astronomy magazine subscribers can read the full article for free. ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter....

... Evolutionary Models of Extra-Solar Giant Planets and Brown Dwarfs . ... Missions . HST . ... Future Missions and . ... Missions Office . ... With the discovery of the companions of 51 Peg, 55 Cnc, Tau Boo, Upsilon And, 70 Vir, 47 UMa, and Gl 229, evolutionary and spectral models of gas giants and/or brown dwarfs with masses from 0.3 through 60 times that of Jupiter assume a new and central role in the emerging field of extra-solar planetary studies. ... 1996; Saumon et al. 1996; Marley et al. ...

... Planets and Brown Dwarfs . ... Mission Definition . Ask anyone on the street to give an example of a planet, and they'll consider you a bit dim. ... Finally, if you ask "What is the exact scientific definition of 'planet'?", it turns out that nobody can answer it, because there really isn't one. ... The word itself means "wanderer" in Greek, and other cultures generally have words for "planet" with a similar meaning. So why isn't that good enough for us today? ...

... Search . ATNF Home . About ATNF . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Parkes radio telescope . ... Parkes | ... A Search for Bright Kuiper Belt Objects . ... Since 1992, 60 large Kuiper belt objects have been detected by ground-based telescopes. ... The detection of brighter objects would improve our ability to determine the Kuiper belt objects' surface composition and provide constraints on the population statistics of different formation mechanisms. ...

... Asher, D.J. , 1999, ``The Leonid meteor storms of 1833 and 1866'', MNRAS, 307, 919-924. ... Asher, D.J., Bailey, M.E. , Emel'yanenko, V.V., 1999, ``The resonant Leonid trail from 1333'', Irish Astron. ... McNaught, R.H., Asher, D.J. , 1999, ``Leonid dust trails and meteor storms'', WGN, Journal of the Int. Meteor Org., 27, 85-102. 23. ?zeren, F.F., Doyle, J.G., Jevremovic, D. , 1999, ``The Wilson-Bappu relation for RSCVn stars'', A&A, 350, 635-642. ...

Michele Bannister . Publications . ... Research . ... M.J. Godfrey, M.T. Bannister , D.C. Nobes and R.S. Sletten. 3D time-lapse imaging of polygonal patterned ground in the McMurdo Dry Valleys of Antarctica. 12th International Conference on Ground Penetrating Radar, Birmingham, UK, 2008. (pdf) . ... M.T. Bannister , M.E. Brown, B.P. Schmidt, P. Francis, R. McNaught, G. Garrad, S. Larson, E. Beshore. ... M.T. Bannister , M.E. Brown, B.P. Schmidt, R. McNaught, G. Garrad, S. Larson, E. Beshore. ...

... Astronomers have used a new technique to see the faint light from a planet that is orbiting a distant star. ... Instead, astronomers found them by looking for telltale clues, such as how the light from a star dims when an exo-planet passes in front of it, or how it wobbles because of the pull of an exo-planet s gravity. Astronomers can learn a lot about exo-planets that move in front of their stars. This is because the starlight passes through the exo-planet s atmosphere on its way to Earth. ...

... Solar System Data . Tables of many physical and orbital parameters for each of the major bodies in the solar system. ... Lists of the biggest, smallest, brightest and densest bodies in the solar system and a list of those bodies least unsuitable for life. ... Lists of which bodies were discovered in each century since Galileo. ... Some interesting linguistic tidbits relating to the planets. ... Astronomical Names . ... The sites around the Net where The Nine Planets is located. ... Appendices .. ...

... J. Brand, M. Felli, R. Cesaroni, C. Codella, G. Comoretto, S. Di Franco, F. Massi, L. Moscadelli, R. Nesti, L. Olmi, F. Palagi, F. Palla, D. Panella, R. Valdettaro . 2007, IAU Symposium 242, p. 223 . ... 2007, ApJ, in press . ... Murphy, G. C., Lery, T., O'Sullivan, S., Spicer, D., Bacciotti, F., Rosen, A. 2007, A , in press . ... Rubini, F., Lorusso, S., Del Zanna, L., Bacciotti, F. 2007, A , in press . ... Coffey, D., Bacciotti, F., Ray, T.P., Eisloeffel, J., Woitas, J. 2007, ApJ, in press . ...

... Dept. for Astrometry & Space Geodynamics . ... Dept. for Physics of Stars&Galaxies . ... Dept. for Physics of Planetary Systems . ... Science . ... All Pages . ... Research of the stars with planets which pass apparent star disk (transiting exoplanets). The transit method based on a detection star brightness decrease during a passing of planet in front of its disk. Observed brightness system decries when planet pass star disk and its volume depend of the relative sizes star and planet. ...

... The study of extra solar planets will be one of the most important areas of research in astronomy in this century. ... The first planets outside the solar system were found in 1992 around the millisecond pulsar PSR B1257+12 by Alex Wolszczan at the Arecibo Observatory . ... Three space missions based on this principle (MOST, COROT and Kepler ) have already been launched or approved, and have the last one at least has the potential to find Earth-sized planets. ... SIM ( NASA ) is one of such missions...

Our publications in 2002 year Kniazev, A. Y.; Grebel, E. K.; Pustilnik, S. A.; Pramskij, A. G. American Astronomical Society, 201st AAS Meeting, #52.23; Bulletin of the American Astronomical Society, Vol. 34, p.1195 (12/2002) . ... N.; Pustilnik, S. A.; Kniazev, A. Y.; Elmegreen, B. G.; Larsen, S. S.; Alfaro, E. J.; Hodge, P. W.; Pramsky, A. G.; Richtler, T. Astronomy and Astrophysics, v.389, p.855-870 (07/2002) . ... 253-253 (02/2002) . ... 24P (01/2002) . ...

... Bad Astronomy . ... Mad Science . ... The Nine Planets . ... Area of science: Astronomy . ... Detecting new planets is a very hot topic in astronomy right now. ... Larger telescopes in space may be able to actually take pictures of these planets. ... Even when built, they will probably not be able to see any detail of the surface of these planets, but will probably just be able to see them as points of light. ... But there is another way to detect planets, which is more subtle. ... 2008 Phil Plait. ...

... CONTACT . ... Planned space experiments promise a considerable increase in the detections and statistical knowledge arising especially from transit and astrometric measurements over the years 2005­15, with some hundreds of terrestrial-type planets expected from transit measurements, and many thousands of Jupiter-mass planets expected from astrometric measurements. ... To request a printed copy, please contact Britt Sjoeberg (bsjoeber@eso.org) . ...

... Archive 2003: . From RATAN-600 observations with a matrix radiometer at a wavelength of 1 cm indications have been found of existence of relativistic electrons in the magnetosphere of Jupiter with energy of about 100 MeV, which demands revision of mechanisms of acceleration of cosmic rays of the solar wind with energy of a few MeV. ... Archive . ...

The basic problems of the Laboratory are connected with researches of dynamics of minor planets and comets. ... THE ORBIT IMPROVEMENT of minor planets from optical and radar observations, . the utilization of minor planet observations for THE DETERMINATION OF ORIENTATION OF STAR CATALOGUES and DETERMINATION OF MASSES OF MINOR PLANETS BY DYNAMICAL METHOD, . THE ESTIMATION OF COLLISION PROBABILITY of minor planets with other bodies and with each other, . ...

ARCSAT ID NUMBER: AS01 DESCRIPTIVE TITLE: Search for Short-Period Planets Orbiting Bright White Dwarfs PI: Brett Morris (UW) OBSERVER(S): Brett Morris (UW), Doug Branton (UW) UNCERTIFIED/UNTRAINED OBSERVERS: Undetermined Pre-MAP students ... In addition, since typical white dwarfs are roughly Earth-sized, the transit of an Earth-sized planet can cause changes in brightness on the order of several tens of percent for durations on the order of one minute (Agol 2011). ...

... 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. ...