Sirius Observation Details
Sirius Daily Motion
Sirius will rise at 00:55, during twilight, and will ascend to 28° by the time twilight ends at 03:55.Sirius will become visible in September, 21. After being too close to the Sun to observe, it will reappear in the night sky. Starting from September, 21, Sirius can be seen again, providing a good opportunity for observation.
Sirius Visibility Timetable on September 18
Sirius Rise and Set Timetable
| Time | Elevation | |
| Moon Rise, 19.7% illuminated | 00:26 | -6° |
| Moon Set | 15:21 | -49° |
| Astrosession begin | 18:39 | -68° |
| Sirius rise | 00:55 | |
| Astrosession end | 03:24 | 24° |
| Civil sunrise | 04:26 | 31° |
| Sunrise | 04:53 | 34° |
| Sirius transit | 06:01 | 36° |
Track Sirius Position Throughout the Night
← Thu, 18 September 2025 →
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Shift the map to change the time and observe Sirius changing position in the night sky.
Where is Sirius right now?
Sirius is located in the constellation Canis Major, at right ascension 06h 45m 08s" and declination -16° 42' 58s. At the current time, it is below the horizon and not visible from your location.Sirius - Main Sequence Star
Sirius, also known as the Dog Star, is the brightest star in the night sky. It is a binary star system consisting of a main sequence star, Sirius A, and a faint white dwarf companion, Sirius B.
Sirius A is about twice as massive as the Sun and 25 times more luminous. The system is approximately 8.6 light-years away from Earth and is a prominent feature of the winter sky in the Northern Hemisphere.
Finder Chart for Sirius
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| Object name | Sirius |
| Field of view | |
| Limiting magnitude | |
| Sirius coordinates | 6.7524809999999995, -16.716116 |
| Center coordinates | 6.7524809999999995, -16.716116 |
Sirius Passage Through Night
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Current position of Sirius
| Time | 21:29 |
| Latitude | 37.3541 |
| Longitude | -121.955 |
| Sirius elevation | -40° |
| Sirius Azimuth | -80° |
Here you can see the current position of the Sirius on the map, as well as its positions for rise and set. This tool allows you to track the Sirius's movement throughout the night, providing you with accurate and up-to-date information.
Annual motion of Sirius
| Date | Fri, 19 September 2025 |
| Twighlight start | 18:37 |
| Twighlight end | 03:23 |
| Twighlight duration | 9h 46m |
| Rise | 00:51 |
| Set | 11:04 |
| Elevation at transit | 36° |
| Transit time | 05:57 |
| Equatorial coordinates | RA: 06h 45m 08s", Dec: -16° 42' 58s |
| Magnitude | -1 |
| Constellation | Canis Major |
The graph illustrates the annual visibility pattern of a Sirius, 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 Sirius 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.
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 Sirius 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.
Astrometric & Physical Parameters of Sirius
Coordinates & Visibility
| Right Ascension | 6.7524809999999995° |
| Declination | -16.716116° |
| Magnitude | -1.44 |
| Constellation | Canis Major |
| Elevation | -40.3° |
| Azimuth | -80° |