Home > Conjunction, Ephemeris Program, Observing, Planets, The Moon > 01/30/2023 – Ephemeris – Two planetary events are happening today

01/30/2023 – Ephemeris – Two planetary events are happening today

January 30, 2023

This is Ephemeris for Monday, January 30th. Today the Sun will be up for 9 hours and 44 minutes, setting at 5:48, and it will rise tomorrow at 8:03. The Moon, 2 days past first quarter, will set at 4:34 tomorrow morning.

Today, the planet Mercury was seen as far away from the Sun as it can get for this time of year in the morning sky. It’s called “greatest western elongation”, and it’s distance from the sun and angle is 25 degrees. It’s going to stay pretty close to that for about the next week or so, it’ll be visible if it ever clears up. This is about the latest time one can see Mercury morning elongations this for this time of year. We’re running out of the correct angles for it. This evening, if it’s clear, the planet of Mars will appear near the waxing gibbous Moon. Early on in the evening Mars will be to the upper left of the Moon, which will be approaching it by about its own diameter every hour, until about 1 o’clock in the morning when Mars will it’s closest above the Moon it should be a striking sight.

The astronomical event times given are for the Traverse City/Interlochen area of Michigan (EST, UT –5 hours). They may be different for your location.


Mercury, brighter than it would appear with orbit, created by Stellarium. Mercury is going up, left and down in a counterclockwise motion.
The Moon and Mars as created in Stellarium for 12:50 am tonight, January 31, 2023. Mars will actually appear less bright compared to the Moon than it appears here.

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