Jupiter Apparition - Opposition 2017 APR 07

A plotting of the planet in equatorial coordinates of current date during 2016 NOV 11 to 2017 SEP 06 - See article below.

Jupiter Declination - 2012-23

A plotting of the declinations of the planet at oppositions from 2012 to 2013

Jupiter Stellar Magnitude - 2017-18

Graph of the brightness of Jupiter measured in stellar magnitude

Jupiter 01 Jupiter 02 Jupiter 11 Jupiter 07

                2016-17 APPARITION OF JUPITER

Opposition from the Sun occurred on 2017 APR 07 with Jupiter in the sky all night. At that time it was in the constellation Virgo at a declination of 5.7° south of the celestial equator. Its south pole was tilted by 3.8° toward Earth. The orbital planes of its four great Galilean satellites were similarly tilted. Greatest brilliance for this apparition was expected around that same date at stellar magnitude -2.5. Jupiter’s closest approach to Earth of 4.4549 AU occurred on APR 08 while subtending an equatorial angular diameter of 44.3 arcseconds.

   Apparent direct motion in right ascension resumed on 2017 JUN 09. Eastern quadrature (90° from Sun) was reached on JUL 05 before conjunction behind the Sun on OCT 26.

   Jupiter will appear nearest to Spica on 2017 SEP 11.

   The Moon will appear near Jupiter on 2017 AUG 25 & SEP 22. There will be no lunar occultations of Jupiter during this apparition.

NOTES: Event dates in this article are for North American Central Time. Galilean satellite positions are calculated utilizing the high accuracy algorithm of Jay H. Lieske.

*  A meridian transit occurs when a celestial body crosses an observer’s local north-south line in the sky. That is practically simultaneous with culmination, i.e. the highest altitude for the day. The Jupiter meridian transit times in the above linked graph can be easily transformed for your location. The given times are nearly the same for the central meridians of all time zones, i.e. those evenly divisible by 15° such as 75°, 90°, 105° or 120°. Do not adjust to UT. Simply add to the chart time 4 minutes for each degree west of a central meridian, or subtract 4 minutes for each degree to the east. If on daylight savings time, add an hour.



Jupiter 08

Galilean Satellites - Nightly Event Timetable

Nightly timetable for events involving the four Galilean satellites of Jupiter and their shadows

Jupiter 09 Jupiter 10

Jupiter Angular Diameter - 2017-18

Graph of equatorial angular diameter of Jupiter measured in arcseconds - Distance in AU = 196.88 / angular diameter

Jupiter 03 Jupiter 04

Jupiter Illumination Phase - 2017-18

Graph of the percentage of Jupiter’s apparent disk illuminated

Jupiter Apparent Axial Tilt Graph - 2017-18

Graph of the tilt of Jupiter’s rotational axis as viewed from Earth Similar tilts for the orbital planes of its four Galilean satellites

Jupiter Meridian Transit Time* - 2017-18

Graph of the times that the planet Jupiter transits the prime meridian

Jupiter 05

Galilean Satellites - Nightly Array Graphic

Nightly preview graphic depicting the four Galilean satellites of Jupiter and their shadows

Jupiter 06

© Curt Renz


Shadow Transit - Overhead View - AUG 22

Preview of #2 Europa and its shadow  transiting Jupiter during the evening of 2017 AUG 22 as viewed from above Jupiter’s north pole

Shadow Transit - View from Earth - AUG 22

Preview of #2 Europa and its shadow transiting Jupiter during the evening of 2017 AUG 22 as viewed from Earth

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