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Mars Apparition - Opposition 2018 JUL 27

A plotting of the planet in equatorial coordinates of current date during 2018 APR 23 to OCT 30 - See article below.

Mars Declinations and Altitudes at Oppositions

A plotting of Mars through the zodiac at oppositions during coming years, plus data of its right ascensions, declinations and transit altitudes

Mars Angular Diameter - 2019

Graph of equatorial angular diameter of Mars measured in arcseconds - Distance in AU = 9.36 / angular diameter

Mars, Earth & Sun at Oppositions

Diagram of relative positions of Mars, Earth & Sun at oppositions during coming years, plus data on distance, angular size & brightness

Mars Appearing as Big as a Full Moon!!!

Diagram demonstrating how Mars would appear as big as a Full Moon on 2010 AUG 27 AS THE SPAMMERS WANTED YOU TO BELIEVE! (LOL)

Mars 01 Mars 02 Mars 08 Mars 03 Mars 04

                  2017-19 APPARITION OF MARS

Reddish Mars’ perihelic opposition from the Sun occurred on 2018 JUL 26-27 with Mars in the sky all night in the constellation Capricornus at a declination 25.5° south of the celestial equator.

   Apparent direct motion in right ascension resumed on 2018 AUG 28. Eastern quadrature (90° from Sun) was reached on DEC 02 long before conjunction behind the Sun on 2019 SEP 02.

   Mars will appear near bright planets and stars on the following dates: Alcyone (Pleiades) 2019 MAR 31, Aldebaran APR 15, Elnath MAY 04, Castor JUN 16, Mercury JUN 18, Pollux JUN 21 & Mercury JUL 05.

   The Moon will appear near Mars on 2019 APR 09, MAY 07, JUN 05, JUL 04 (occultation) & AUG 01.

NOTE: Event dates in this article are for North American Central Time.

*  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 Mars 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.

Mars Stellar Magnitude - 2019

Graph of the brightness of Mars measured in stellar magnitude

Mars 05 Mars 06

Mars Illumination Phase - 2019

Graph of the percentage of Mars’ apparent disk illuminated

Mars 07

Mars Meridian Transit Time* - 2019

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

Mars Apparent Axial Tilt Graph - 2019

Graph of the tilt of Mars’ rotational axis as viewed from Earth Negative if south pole tilted toward Earth

Mars 09

© Curt Renz


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