Mercury Position and Visibility Tonight
Where is Mercury right now?
Mercury is located in the constellation Gemini, approximately 0.92 AU from Earth. Although it is currently above the horizon at an altitude of 46 degrees, Mercury is not visible because it is daytime.
Mercury Visibility on August 04
Mercury is visible just before sunrise
Mercury Rise and Set Timetable
| Time | Elevation | |
| Mercury transit | 09:53 | 73° |
| Mercury set | 16:58 | |
| Astrosession begin | 19:54 | -26° |
Moon Rise, 72.5% illuminated  | 20:44 | -30° |
| Astrosession end | 02:34 | -2° |
| Mercury rise | 02:48 | |
| Twighlight end | 03:11 | 5° |
| Civil sunrise | 03:46 | 11° |
| Sunrise | 04:16 | 17° |
| Moon Set | 10:28 | 71° |
Track Mercury Position Throughout the Night
← Tue, 4 August 2026 →
| Time | |
| Altitude | |
| Azimuth |
Shift the map to change the time and observe Mercury changing position in the night sky.
Upcoming Events
| Time | Description | Constellation |
|---|---|---|
| Fri, 28 August 2026, 15:00 | Leo | |
| Mon, 12 October 2026 | Greatest Elongation of Mercury | Libra |
| Sat, 24 October 2026 | Retrograde motion of Mercury begins | Libra |
| Thu, 5 November 2026, 15:00 | Libra | |
| Fri, 13 November 2026 | Retrograde motion of Mercury ends | Virgo |
Current position of Mercury in Solar System
| Date | Tue, 4 August 2026 |
| Distance from Earth to Mercury | 0.92234 AU (137,980,100km) |
| Elongation | 19° |
| Angular diameter | 7.3" |
| Magnitude | -0.1 |
Finder Chart for Mercury
Double-click to unlock the map.
| Object name | Mercury |
| Field of view | |
| Limiting magnitude | |
| Mercury coordinates | 7.58785, 20.21792 |
| Center coordinates | 7.58785, 20.21792 |
Mercury Passage Through Night
Double-click to unlock the map.
Current position of Mercury
| Time | 13:01 |
| Latitude | 37.3541 |
| Longitude | -121.955 |
| Mercury elevation | 46° |
| Mercury Azimuth | 261° |
Here you can see the current position of the Mercury on the map, as well as its positions for rise and set. This tool allows you to track the Mercury's movement throughout the night, providing you with accurate and up-to-date information.
Annual motion of Mercury
Mercury will be visible until August, 18, when it will move too close to the Sun. During this time, its proximity to the Sun will cause it to disappear from the night sky, making it unobservable for a while.
| Date | Tue, 4 August 2026 |
| Twighlight start | 19:49 |
| Twighlight end | 02:27 |
| Twighlight duration | 7h 38m |
| Rise | 02:45 |
| Set | 16:54 |
| Elevation at transit | 73° |
| Transit time | 09:50 |
| Equatorial coordinates | RA: 07h 35m 39s", Dec: 20° 13' 27s |
| Magnitude | -0 |
| Constellation | Gemini |
The graph illustrates the annual visibility pattern of a Mercury, providing a comprehensive overview of its daily appearances and transit times throughout the year.
The graph is structured with the vertical axis showing the hours of the day, ranging from 12 AM to 12 AM the next day, while the horizontal axis spans each day of the year.
The reddish shaded area indicates the periods when the Mercury is above the horizon, visible to observers. The white line marks the times when the celestial object reaches its highest point in the sky each day, known as the transit.
You can also view detailed visibility information in a dedicated table, including exact rise, transit, and set times for each date.
The graph is structured with the vertical axis showing the hours of the day, ranging from 12 AM to 12 AM the next day, while the horizontal axis spans each day of the year.
The reddish shaded area indicates the periods when the Mercury is above the horizon, visible to observers. The white line marks the times when the celestial object reaches its highest point in the sky each day, known as the transit.
You can also view detailed visibility information in a dedicated table, including exact rise, transit, and set times for each date.
Astrometric & Physical Parameters of Mercury
Coordinates & Visibility
| Right Ascension | 7.58785° |
| Declination | 20.21792° |
| Magnitude | -0.1 |
| Constellation | Gemini |
| Elevation | 45.8° |
| Azimuth | 260.7° |
Basic Properties
| Mass, kg | 3.302E+23 |
| Mean density, g/cm³ | 5.427 |
Rotation
| Sidereal rotation period, days | 58.6463 d |
| Mean solar day, hours | 175.9421 d |
Surface & Atmosphere
| Surface gravity, m/s² | 3.701 |
| Escape velocity, km/s | 4.435 |
| Mean temperature, K | 440 |
Brightness
| Visual magnitude V(1,0) | -0.42 |
Data Acknowledgment
Our solar system data—including planetary physical and orbital parameters—comes from the Solar System OpenData API , maintained by Le Système Solaire. We thank Christophe and the contributors for making this open data available.