The Night Sky in September 2025

For more details please consult – Astronomy – Sun – Moon – Eclipses (timeanddate.com) and In-The-Sky.org

Note – all times in BST

The Moon

Full on 7th September at 1908    Last Quarter on 14th September at 1132

New on 21st September at 2054 First Quarter on 30th September at 0553

The Planets on 15th September 2025

           Sun   Mercury  Venus  Moon Mars Jupiter Saturn  Uranus  Neptune

Rise   0637   0436       0223    2116    0954  0224     2205     2341     2159

Set    1923   1948       1858     0634    2159  1912     0952     1550     0959

 In Summary

Mercury will be challenging object low in the east before sunrise.  Venus will be a nice bright object visible before dawn. Mars will be visible low in the west after sunset. Jupiter will be very close to Venus all month – visible before dawn. On the 15th they rise and set in conjunction – very close together. Saturn is an evening object visible from midnight until the morning twilight. Uranus is a morning object visible form 0130 until 0500. Neptune is close to opposition visible from 2330 until dawn.

The Stars at 9pm BST

North – Cepheus and Draco are almost overhead. The two Bears are nicely placed with Camelopardalis low down along with Perseus. Auriga is just starting to rise.

East –  Cygnus is overhead next to Cepheus. The Constellations of the Milky Way are nicely presented in this view tonight. Andromeda and Pegasus are well placed for viewing. Aquarius – with Saturn – and Pisces – with Neptune – are low down

South – Cygnus is overhead with Lyra, Sagitta and Aquila nicely placed. Sagittarius is close to the southern horizon. Plus the many objects and star clods of the Milky Way.

West – Lyra, Draco and Hercules are high up. Ophiuchus and Corona Borealis [ NB keep a watch on T Crb! – could flare any time now]. For more information see here…… https://www.skyatnightmagazine.com/space-science/t-coronae-borealis-nova

Meteor Showers          There are no bright meteor showers during September but this month is often a time for sporadic fireballs from new meteor showers that are still developing.

Bright Comet              There are no bright Comets visible in March 2025

For further news on upcoming bright Comets please browse with website ….. https://in-the-sky.org/data/comets.php

Other phenomena to look out for

With Summer almost over darker skies are approaching so its time to dust of the telescope covers, check your equipment out and get outside – there may be a clear sky at some stage this autumn. There is still lots of solar activity at the moment, the current cycle is much stronger than expected – sunspots and more – so if you have a Solar Filter check out the daily changes to Sunspots.

 Night Sky View

Rendering from Carte du Ciel – Skycharts. en:start [Skychart] (ap-i.net)

Looking Southeast at 10pm BST