Dominic Ford, Editor
From the Conjunctions feed
1 Ceres and 136199 Eris will share the same right ascension, with 1 Ceres passing 6°09' to the north of 136199 Eris.
From Ashburn, the pair will be visible in the evening sky, becoming accessible at around 18:15 (EST) as the dusk sky fades, 48° above your southern horizon. They will then reach its highest point in the sky at 18:12, 48° above your southern horizon. They will continue to be observable until around 22:06, when they sink to 22° above your south-western horizon.
A graph of the angular separation between 1 Ceres and 136199 Eris around the time of closest approach is available here.
The positions of the two objects at the moment of conjunction will be as follows:
|Object||Right Ascension||Declination||Constellation||Magnitude||Angular Size|
The coordinates above are given in J2000.0. The pair will be at an angular separation of 90° from the Sun, which is in Sagittarius at this time of year.
|The sky on 14 January 2017|
16 days old
All times shown in EST.
The circumstances of this event were computed using the DE405 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.
|15 Oct 2016, 20:22 EDT||– 136199 Eris at opposition|
|16 Oct 2017, 07:38 EDT||– 136199 Eris at opposition|
|16 Oct 2018, 18:58 EDT||– 136199 Eris at opposition|
|17 Oct 2019, 06:29 EDT||– 136199 Eris at opposition|
The Moon in conjunction with Venus and Jupiter, with the Very Large Telescope in the foreground. Image © Y. Beletsky, ESO, 2009.