Venus and Mars will share the same right ascension, with Venus passing 8°33' to the south of Mars.
From South El Monte , the pair will be visible in the dawn sky, rising at 04:06 (PDT) – 2 hours and 28 minutes before the Sun – and reaching an altitude of 20° above the eastern horizon before fading from view as dawn breaks at around 05:51.
Venus will be at mag -4.5, and Mars at mag 1.8, both in the constellation Leo.
The pair will be too widely separated to fit within the field of view of a telescope or pair of binoculars, but will be visible to the naked eye.
A graph of the angular separation between Venus and Mars 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 |
| Venus | 09h33m50s | 7°10'N | Leo | -4.5 | 48"9 |
| Mars | 09h33m50s | 15°43'N | Leo | 1.8 | 3"8 |
The coordinates above are given in J2000.0. The pair will be at an angular separation of 28° from the Sun, which is in Leo at this time of year.
The sky on 10 Sep 2025
| The sky on 10 September 2025 | ||||||||||||||||||||||||||||||||||
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85% 18 days old |
All times shown in PDT.
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Source
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.
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Image credit
The Moon in conjunction with Venus and Jupiter, with the Very Large Telescope in the foreground. Image © Y. Beletsky, ESO, 2009.