Mit dieser Seite können Sie sich die aktuellen
Koordinaten von einigen Kleinplaneten anzeigen lassen.
Um dies zu tun, entfernen Sie bitte den Haken in
dem Kästchen des Kleinplaneten, dessen Koordinaten Sie nicht interessieren, und
klicken Sie anschließend auf "Get ephemerides/orbits".
By default, ephemerides are geocentric, begin now and are for 20 days at 1
day intervals. The desired start date for the ephemeris should be entered in
YYYY MM DD format, e.g., 1998 July 19 = 1998 07 19. Note that these
ephemerides are intended to assist current observations only.
Start date for ephemerides: Number of dates to output
none;
MPC 1-line;
MPC 8-line;
SkyMap (SkyMap Software);
Guide (Project Pluto);
xephem (E. Downey);
Home Planet (J. Walker);
MyStars! (Relative Data Products);
TheSky (Software Bisque);
Starry Night (Sienna Software);
Deep Space (D. S. Chandler);
PC-TCS (D. Harvey);
Earth Centered Universe (Nova
Astronomics);
Dance of the Planets (ARC);
MegaStar V4.x (E.L.B. Software);
SkyChart III (Southern Stars Software);
Voyager II (Carina Software);
SkyTools (CapellaSoft);
Autostar (Meade Instruments);
If you select 8-line MPC format the elements will be displayed with the
ephemerides.
If you select any format other than 8-line MPC format, only the elements are
returned.
In such cases your browser should download the elements file and save it
to your local disk.
The summary lists the current J2000.0
coordinates, visual magnitude and
solar elongation of the selected minor planets, as well as information on
the date of last observation (where available), forthcoming opposition
data and details on the latest published orbit. The opposition data lists
the date of the next opposition and the declination and visual magnitude
at that time.
The list of available formats for the orbital elements was correct at the
time this document was prepared. It is possible that the Minor Planet
Center now supports futher formats. If you select the summary option,
any newly supported formats will be listed.
Elements
The elements supplied are the latest published elements for the
specified objects. Elements will be found even if the designation you
enter is a non-principal designation in an identification or if the object
has been numbered.
Ephemerides can be supplied for objects with only Väisälä
elements, but the elements themselves are not supplied.
Ephemerides
The ephemerides supplied are unperturbed. Ephemerides from perturbed
orbit solutions are generated from elements at the nearest 200-day epoch. The accuracy of the ephemerides for most objects will be
entirely sufficient to locate the objects for current astrometric
observation. Objects must be identified in images by their motion, not by their apparent closeness to a predicted
position.
The time-scale of the supplied ephemerides is strictly TT (Terrestrial Time). For practical purposes the difference between
TT and UT (Universal Time), currently a little over 1 minute,
may be ignored.
If you desire a topocentric ephemeris, enter your observatory code
in the appropriate box. When local circumstances are displayed, the
azimuths are reckoned westwards from the south meridian.
As an aide-mémoire, the packed
form of the object's designation (as used on the
astrometric observation record)
is displayed immediately above the ephemeris.
