Weymouth Astronomy

The Planets - November 2021


Mercury can be seen for the first week or so of November and may be spotted very low in the east southeast just before dawn. Binoculars may well be needed but do not use them after the Sun has risen.


At the start of the month Venus will only have an elevation of 7 degrees at sunset looking towards the south southwest so a clear horizon is required. By month's end it's elevation after sunset will increase to 10 degrees with its magnitude increasing -4.86.


This month the 'Red Planet' climbs out of the Sun's glare in the pre-dawn sky having a magnitude of 1.65 on the 1st and seen in the east southeast. By the end of the month it will be best seen at around 07:00 GMT in the southeast.


As darkness falls at the start of the month, Jupiter (having a magnitude of -2.49 and an angular size of 42 arc seconds) can be observed looking south. This year Jupiter has climbed up the ecliptic so the atmosphere will not hinder views of the solar system's largest planet as much as it has in the last two years.


Saturn precedes Jupiter into the sky, crossing the meridian at 18:00 GMT at the start of November. Saturn will be best seen in the south earlier in the month having an elevation of 18 degrees as it crosses the meridian.

Information collated from Jodrell Bank and Astronomy Now magazine