October 24, 2021
Mercury reaches greatest western elongation tomorrow. You can look for the elusive planet about 9.5° above the eastern horizon tomorrow morning at 6:40 am. Those with telescopes will see Mercury’s disk 56.9% illuminated. Much like the Moon, both Mercury and Venus exhibit phases.
Mercury rising in the east at 6:40 am on October 25, 2021. Image created using Stellarium.
