Sep12027 · UTC
Aurigids Meteor Shower
Aurigids activity peaks with a listed zenithal hourly rate of 6. Actual visible rates depend on sky darkness, radiant altitude, and local weather.
The astronomy calendar
September 2027.
Choose a date to see what’s happening. Event pages show your local viewing times and directions.
The month at a glance
Choose a date.
Highlighted days have catalog events. Choose a day to jump to its details below. This calendar uses UTC dates.
| S | M | T | W | T | F | S |
|---|---|---|---|---|---|---|
| 29 | 30 | 31 | 1 | 2 | 3 | 4 |
| 5 | 6 | 7 | 8 | 9 | 10 | 11 |
| 12 | 13 | 14 | 15 | 16 | 17 | 18 |
| 19 | 20 | 21 | 22 | 23 | 24 | 25 |
| 26 | 27 | 28 | 29 | 30 | 1 | 2 |
8 events this month
Grouped by peak date in UTCWednesday, September 1 UTC
Friday, September 10 UTC
Sep102027 · UTC
September Epsilon Perseids Meteor Shower
September Epsilon Perseids activity peaks with a listed zenithal hourly rate of 8. Actual visible rates depend on sky darkness, radiant altitude, and local weather.
Monday, September 13 UTC
Sep132027 · UTC
September Lyncids Meteor Shower
September Lyncids activity peaks with a listed zenithal hourly rate of 3. Actual visible rates depend on sky darkness, radiant altitude, and local weather.
Wednesday, September 15 UTC
Sep152027 · UTC
Full Moon — Harvest Moon
The Moon reaches its full phase (Harvest Moon).
Thursday, September 23 UTC
Sep232027 · UTC
September Equinox
Astronomical autumn begins in the Northern Hemisphere and spring in the Southern Hemisphere.
Friday, September 24 UTC
Sep242027 · UTC
Mercury at Greatest Eastern Elongation
Mercury reaches its widest apparent separation from the Sun and is best placed in the evening sky.
Tuesday, September 28 UTC
Sep282027 · UTC
Neptune at Opposition
Neptune lies opposite the Sun, rises near sunset, and is favorably placed for observing.
Thursday, September 30 UTC
Sep302027 · UTC
New Moon
Dark moonless skies make this a useful night for stargazing.
Also active this month
These showers peak in another month, but their catalog activity windows overlap this one.
Oct12027 · UTC
Daytime Sextantids Meteor Shower
A daytime shower included for radio observation; it is not a normal naked-eye event.
Nov62027 · UTC
Southern Taurids Meteor Shower
Southern Taurids activity peaks with a listed zenithal hourly rate of 7. Actual visible rates depend on sky darkness, radiant altitude, and local weather.
Catalog refreshed . Dates and predictions come from the catalog used by Forecast Bar, with a source on every event.
Calendar day groupings use UTC. Event times adapt to your device’s time zone when JavaScript is available. Exact local visibility and weather can differ from the global catalog timing.
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to a night worth remembering.
Open the astronomy calendar in Forecast Bar to explore events alongside your local weather and astronomy alert settings.
