Close approach of Mercury and Moon on 2 September 2027 at 01:01
General information
The closest separation between Mercury and Moon will occur on 2 September 2027 at 01:01, when they will be separated by roughly 4.018°. At closest approach: Both objects will be below the horizon and cannot be observed.
Visibility window
The event begins when the separation drops below 5° at about 1 September 2027 at 18:36, and ends when it grows beyond 5° at about 2 September 2027 at 06:30. The objects can be followed during this interval when observing conditions permit.Elevation and direction at closest approach
At closest approach, Mercury and Moon will be approximately -88° above the horizon toward the south.Constellation
Both objects will be located in or near the constellation Virgo. This can help you locate them in the sky.Track Mercury / Moon relative positions
| Time | 1819846860 |
| Altitude | |
| Azimuth |
Move the map to change the time and follow how the objects change position in the sky.
Close approach dynamics
The map shows the event from your location. Switch to global view for geocentric (Earth-centered) coordinates.
Close approach details
| Mercury | Moon | |
|---|---|---|
| Time | 01:01 | |
| Angular separation (°) | 4.02 | |
| Geocentric coordinates | RA: 11h 52m 06s", Dec: 01° 06' 33s | RA: 11h 44m 48s", Dec: -2° 28' 10s |
| Topocentric coordinates | RA: 11h 52m 06s", Dec: 01° 06' 33s | RA: 11h 44m 48s", Dec: -2° 25' 37s |
| Distance | 1.2704 AU (190,049,135 km) | 0.00243 AU (363,523 km) |
| Angular size | 5.3" | 33' |
| Altitude (°) | -88 | -88 |
| Azimuth (°) | 301 Northwest | 180 South |