Where is Arcturus right now?
Arcturus is located in the constellation Bootes. It is currently below the horizon and is not visible from your location.
Twilight begins at 18:31 local time. At that moment, Arcturus will be 35° above the horizon toward the west.
Twilight begins at 18:31 local time. At that moment, Arcturus will be 35° above the horizon toward the west.
Track Arcturus Position Throughout the Night
← 4 September 2026 →
| Time | |
| Altitude | |
| Azimuth |
Shift the map to change the time and observe Arcturus changing position in the night sky.
Where and When to Look for Arcturus Tonight
The best observable position of Arcturus is near 18:00: 41° above the horizon toward the west. Status: Best view.
Arcturus will remain visible until September 15, when it moves too close to the Sun and temporarily disappears from the night sky. You can also see when Arcturus is visible throughout the year in a table with exact rise, transit, and set times for each date.
How Arcturus Moves Across the Sky
During this observing period, Arcturus moves from the south-east, reaches its highest sampled position at 41° toward the west, and finishes toward the south-east.
Astrometric and Physical Parameters of Arcturus
| Constellation | Bootes |
| Elevation | 35° |
| Direction | west (268°) |
| Right Ascension | 14h 15m |
| Declination | +19° 10′ |
| Magnitude | -0.05 |
Arcturus Passage Through Night
Double-click to unlock the map.
Current position of Arcturus
| Time | 18:31 |
| Latitude | 37.3541 |
| Longitude | -121.955 |
| Elevation | 35° |
| Azimuth | 268° |
Here you can see the current position of Arcturus 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.
Arcturus Position by Hour
Select a row to move both interactive maps to that time.
| Time | Elevation | Azimuth | Direction | Visibility |
|---|---|---|---|---|
| Sep 3, 12:00 | 52° | 108° | south-east | Daylight |
| Sep 3, 13:00 | 63° | 126° | south-east | Daylight |
| Sep 3, 14:00 | 71° | 157° | south-east | Daylight |
| Sep 3, 15:00 | 71° | 201° | south-west | Daylight |
| Sep 3, 16:00 | 63° | 233° | south-west | Daylight |
| Sep 3, 17:00 | 53° | 251° | south-west | Daylight |
| Sep 3, 18:00 | 41° | 263° | west | Best view |
| Sep 3, 19:00 | 29° | 273° | west | Visible |
| Sep 3, 20:00 | 17° | 281° | west | Visible |
| Sep 3, 21:00 | 6° | 290° | north-west | Very low |
| Sep 3, 22:00 | -5° | 299° | north-west | Below horizon |
| Sep 3, 23:00 | -15° | 309° | north-west | Below horizon |
| Sep 4, 00:00 | -23° | 321° | north-west | Below horizon |
| Sep 4, 01:00 | -30° | 336° | north-west | Below horizon |
| Sep 4, 02:00 | -33° | 352° | north | Below horizon |
| Sep 4, 03:00 | -33° | 9° | north | Below horizon |
| Sep 4, 03:10 — Astronomical night ends | -33° | 12° | north-east | Below horizon |
| Sep 4, 03:42 — Twilight end | -31° | 20° | north-east | Below horizon |
| Sep 4, 04:00 | -30° | 25° | north-east | Below horizon |
| Sep 4, 04:14 — Civil sunrise | -28° | 28° | north-east | Below horizon |
| Sep 4, 04:42 — Sunrise | -25° | 35° | north-east | Below horizon |
| Sep 4, 05:00 | -23° | 39° | north-east | Below horizon |
| Sep 4, 06:00 | -15° | 51° | north-east | Below horizon |
| Sep 4, 07:00 | -5° | 61° | north-east | Below horizon |
| Sep 4, 08:00 | 6° | 71° | north-east | Daylight |
| Sep 4, 09:00 | 18° | 79° | east | Daylight |
| Sep 4, 10:00 | 30° | 88° | east | Daylight |
| Sep 4, 11:00 | 41° | 97° | east | Daylight |
| Sep 4, 12:00 | 53° | 109° | south-east | Daylight |