Octans Constellation
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Octans, the octant, is a faint constellation in the southern sky, known for containing the south celestial pole star, Sigma Octantis.
Octans Rise and Set Timetable
| Time | Elevation | |
| Octans is always below the horizon | - | |
Moonrise, 31.2% illuminated  | 23:22 | -34° |
| Moonset | 14:56 | -39° |
| Astronomical observing session begins | 18:26 | -36° |
| Octans transit | 23:00 | -34° |
| Astronomical observing session ends | 03:45 | -36° |
Track Octans Position Throughout the Night
← 7 September 2026 →
| Time | |
| Altitude | |
| Azimuth |
Shift the map to change the time and observe Octans changing position in the night sky.
Nebulae in the constellation Octans
Annual motion of Octans
| Date | Mon, 7 September 2026 |
| Twilight start | 18:54 |
| Twilight end | 03:07 |
| Twilight duration | 8h 13m |
| Rise | Octans is always down |
| Set | Octans is always down |
| Elevation at transit | -34° |
| Transit time | 22:56 |
| Equatorial coordinates | RA: 22h 58m 30s", Dec: -86° 10' 58s |
| Magnitude | - |
| Constellation |
The graph illustrates the constellation’s annual visibility pattern and its daily rise, set, and transit times throughout the year.
The vertical axis shows the hours of the day, while the horizontal axis spans the days of the year.
The reddish area marks when the constellation is above the horizon. The white line shows when it reaches its highest point in the sky. View detailed visibility information in a table with rise, transit, and set times for each date.
The vertical axis shows the hours of the day, while the horizontal axis spans the days of the year.
The reddish area marks when the constellation is above the horizon. The white line shows when it reaches its highest point in the sky. View detailed visibility information in a table with rise, transit, and set times for each date.
Acknowledgements
We gratefully acknowledge the International Astronomical Union (IAU) for defining and standardizing the official constellation boundaries used in celestial mapping.
Special thanks to Sky & Telescope Magazine and contributors Roger Sinnott and Rick Fienberg for producing the charts and tables. Alan MacRobert’s constellation patterns were influenced by the work of H. A. Rey and adjusted to align with earlier traditions.