In practice, however, 1 Ceres's orbit is very close to circular; its distance from the Sun only varies by about 17.0% between perihelion and aphelion. This means that the difference in the amount of heat and light it receives from the Sun between aphelion and perihelion is extremely small.
Finding 1 Ceres
1 Ceres's distance from the Sun doesn't affect its appearance. From Ashburn, at the moment of aphelion it will be visible between 00:25 and 04:33. It will become accessible around 00:25, when it rises to an altitude of 21° above your south-eastern horizon. It will reach its highest point in the sky at 02:29, 28° above your southern horizon. It will become inaccessible around 04:33 when it sinks below 22° above your south-western horizon.
The position of 1 Ceres at the moment it passes aphelion will be:
|Object||Right Ascension||Declination||Constellation||Magnitude||Angular Size|
The coordinates above are given in J2000.0.
|The sky on 17 August 2020|
28 days old
All times shown in EDT.
The circumstances of this event were computed using the DE430 planetary ephemeris published by the Jet Propulsion Laboratory (JPL).
This event was automatically generated by searching the ephemeris for planetary alignments which are of interest to amateur astronomers, and the text above was generated based on an estimate of your location.
|17 Aug 2020||– 1 Ceres at aphelion|
|28 Aug 2020||– 1 Ceres at opposition|
|07 Apr 2021||– 1 Ceres at solar conjunction|
|27 Nov 2021||– 1 Ceres at opposition|
© NASA/Dawn 2015