τ Leo Position and Visibility Tonight
Where is τ Leo right now?
τ Leo is located in the constellation Leo. It is currently below the horizon and is not visible from your location.
τ Leo visibility on 2026-11-06
τ Leo Visible from before midnight until sunrise
τ Leo rise and set timetable
| Time | Elevation | |
Moonrise, 18.4% illuminated  | 22:13 | 4° |
| τ Leo transit | 04:00 | 53° |
| τ Leo set | 10:09 | |
| Moonset | 10:25 | -3° |
| Astronomical observing session begins | 13:57 | -39° |
| τ Leo rise | 21:48 | |
| Astronomical observing session ends | 00:34 | 31° |
| Twilight end (−12°) | 01:06 | 36° |
| Civil sunrise | 01:38 | 41° |
| Sunrise | 02:08 | 45° |
Track τ Leo position throughout the night
← 6 November 2026 →
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Shift the map to change the time and observe τ Leo changing position in the night sky.
Star system description: τ Leo
A double or multiple star system in Leo.
Pair AB (89.2″; magnitudes 5.05 and 7.47) is the binocular candidate in the catalog model. Actual resolution depends on magnification and stability.
The diagram uses the latest WDS measurements; north is up and east is right. Measurements may be from different years. Unconnected groups are arranged separately; close pairs may merge, and pairs without reliable geometry are omitted.
Technical details: τ Leo
| Property | Value |
|---|---|
| System identifier | WDS 11279+0251 |
| Bayer / Flamsteed designation | τ Leo |
| Constellation | Leo |
| System type | multiple star system |
| Right ascension (RA) | 11h 27m 56s" |
| Declination (Dec) | 02° 51' 22s |
| Component | AB |
| Primary magnitude | 5.05 |
| Secondary magnitude | 7.47 |
| Separation (arcseconds) | 89.2″ |
| Position angle | 181° |
| Discovery year | 1780 |
| Last observed | 2019 |
| Spectral type (primary/secondary) | G8II-III |
| Number of observations | 77 |
5 components are identified in WDS; this is not a count of resolved stars.
Components of τ Leo
Each row is a separate WDS component pair. Measurements may come from different years.
| Component | Primary magnitude | Secondary magnitude | Separation (arcseconds) | Position angle | Last observed |
|---|---|---|---|---|---|
| AB (binoculars) | 5.05 | 7.47 | 89.2″ | 181° | 2019 |
| AD | 5.05 | 9.51 | 761.5″ | 92° | 2019 |
| BC | 7.47 | 14.48 | 102.4″ | 234° | 2019 |
| BD | 7.47 | 9.51 | 767.5″ | 86° | 2019 |
| CE | 14.48 | 14.22 | 9.2″ | 192° | 2015 |
Data source: Washington Double Star (WDS) Catalog. Maintained by the U.S. Naval Observatory; thanks to the WDS team.
Finder Chart for τ Leo
τ Leo Passage Through Night
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Current position of τ Leo
| Time | 20:41 |
| Latitude | 39.9612 |
| Longitude | -82.9988 |
| Elevation | -13° |
| Azimuth | 75° |
Here you can see the current position of τ Leo on the map, as well as its positions for rise and set. This tool lets you track its movement throughout the night with accurate, up-to-date information.
When Is τ Leo Visible Throughout the Year?
τ Leo will remain visible until June 25, when it moves too close to the Sun and temporarily disappears from the night sky.
| Date | Sat, 7 November 2026 |
| Astronomical observing session begins | 13:52 |
| Astronomical observing session ends | 00:29 |
| Astronomical observing duration | 11h 37m |
| Rise | 21:44 |
| Set | 10:01 |
| Elevation at transit | 53° |
| Transit time | 03:52 |
| Equatorial coordinates | RA: 11h 27m 56s", Dec: 02° 51' 22s |
| Magnitude | 5 |
| Constellation | Leo |
The graph illustrates the annual visibility pattern of τ Leo, including its daily appearances and transit times. The vertical axis shows the hours of the day and the horizontal axis spans the year. The reddish area marks when the object is above the horizon, while the white line marks its daily transit.
You can also see when τ Leo is visible throughout the year in a table with exact rise, transit, and set times for each date.
You can also see when τ Leo is visible throughout the year in a table with exact rise, transit, and set times for each date.
Astrometric and Physical Parameters of τ Leo
Coordinates and Visibility
| Right Ascension | 11h 27m 56s |
| Declination | 02° 51′ 23″ |
| Magnitude | 5.05 |
| Constellation | Leo |
| Elevation | -12.6° |
| Azimuth | 75.3° |