... 8, ``Celestial Mechanics'', 2002 Dynamic evolution of resonance orbits of exoplanets in system 47 Uma B. R. Mushailov, A. A. Kaloshin Sternberg Astronomical Institute, Moscow, Russia The orbits of the major and minor planets of the Solar system indicate that their dynamic evolution is essentially influenced by the effects of orbital reso­ nance interactions. ... One may expect that the orbital resonances can exist not only in the Solar system, but also in other star systems. ...

. Authors: V.A. Marsakov , Yu.G. Shevelev , . Journal: Bull. Inform. CDS, 1988, № 35, p.129-130. љљљљљThe values of [Fe/H], the distancec, the componets of the space velocities and orbital parameters are calculated for 1304 non-evolved F -stars with homogeneous data and proper motions.

... Historical Data . Orbital Data . Physical Data . ... Sun . ... 0.00 . ... 0.000 . ... 0.0000 . ... 0.001 . ... Key: Name Name of the planet or satellite. ... Orbital period. ... Orbital inclination in degrees. ... Orbital Eccentricity . ... M.O.V. Mean Orbital Velocity. ...

The aim of this section of the course is to familiarise you with celestial Coordinates. ... I found some good notes explaining the celestial coordinate system on the web: . ... 1st Dec: 04hr, 00min In addition to the equatorial coordinates described in the notes above, astronomers also use (at least) two other coordinate systes: galactic coordinates and ecliptic coordinates. ... Ecliptic coordinates use the ecliptic (the Earth's path around the sun) as the equator, and are used for solar system work. ...

Follow-up observations with the University of Washington 0.76 m telescope at Manastash Ridge Observatory (MRO) of the Sloan Digital Sky Survey (SDSS) cataclysmic variable (CV) SDSS J170053+400358 are presented. ... They estimate that the dimming amounted to about 0.028 mag (using two comparison stars that were each about 4 mag fainter than HD 209458). only UW affiliated authors have been listed, student researchers are marked with an ``*'' . ... XTE J1859+226" UW affiliated authors: *Kevin Krisciunas. ...

... Binary orbits in the acceleration/period plane . Circular Orbits . ... We first present the equations for the period and acceleration of a pulsar in an eccentric binary system as a function of its position in the orbit. ... In Freire, Kramer & Lyne (2001) (from where most of this text and following equations are taken), we describe in more detail how circular binary orbits can be determined from the observed periods and accelerations of the pulsar. ... where is the orbital period of the binary. ...

Peremennye Zvezdy", . ... Star Name: . ... During cross matching of objects from the Chandra Source Catalogue with data for Baade's Window from the MACHO photometric database (Allsman and Axelrod 2001) the connection between several of these xray sources and some red giant stars came to light, red giant stars not normally being so associated. ... This research has made use of data obtained from the Chandra Source Catalog, provided by the Chandra X-ray Center (CXC) as part of the Chandra Data Archive . ...

Lunar Libration . Articles | ... Actually, a slight rocking motion, called libration,* makes about 59% of the Moon's surface visible from our planet Earth -- though only 50% at any one time. ... Add to that, the approximate 1.5 degree tilt of the Moon's equator to the ecliptic, and you have the inclination of the Moon's equator to the plane of its orbit around Earth at some 6.5 degrees (5 + 1.5 = 6.5). ... Re-published on Astronomy Net with permission of the author. ... www.astronomy.net . ...

... 20.02.2001 . ... Today is 15 years since Orbital Complex "Mir" first module (its core module) was launched.It was delivered to Earch orbit by "Proton" which lifted off form the launch pad in Baikonur at 00:28:23 Moscow time. ... Priroda" module attached to the "Mir" Orbital Complex in 1996 was the last to complete the orbital facility assembly. ... Currently, the cargo craft "Progress M1-5" launched on Jan 24 2001 docked the Orbital Complex on Jan 27 2001, it is still in orbit as part of the Station...

... Bad Astronomy . ... Mad Science . ... Why are satellites usually in the same orbital plane? Jupiters moons for example.) ... There are two reasons most moons orbit their parent planets in the same plane: one is that they formed that way, and the other is that tides from the parent body change the orbit over a long time to be more along the planet's equator. ... A detailed discussion about how tides affect the orbit and spin of the Earth and Moon can be found at my Bad Astronomy web site . ...

... Classical nova V458 Vul (N Vul 2007 No.1) was detected as a supersoft X-ray source (SSS) by the Swift XRT several times in the time range between 2007 October 18 and 2008 June 18 (J. Drake et al., ... Our V photometry shows the plateau in the light curve continued since January till June 2008. ... The light decay by 0.05 mag/day suggests that plateau has finished in the middle of June. ... The light curve of V458 Vul folded with the period of 0.58946 day (top). ... View UBVRc light curves of V458...