Caelum Constellation
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Caelum, the chisel, is a small southern constellation introduced by Nicolas-Louis de Lacaille in the 18th century, representing a chisel or engraving tool.
Caelum Rise and Set Timetable
| Time | Elevation | |
Moonrise, 96.4% illuminated  | 18:23 | -77° |
| Astronomical observing session begins | 23:25 | -20° |
| Caelum rise | 01:41 | |
| Astronomical observing session ends | 03:38 | 11° |
| Civil sunrise | 04:10 | 13° |
| Sunrise | 04:38 | 14° |
| Caelum transit | 05:14 | 15° |
| Moonset | 07:13 | 10° |
| Caelum set | 08:47 |
Track Caelum Position Throughout the Night
← 30 August 2026 →
| Time | |
| Altitude | |
| Azimuth |
Shift the map to change the time and observe Caelum changing position in the night sky.
Nebulae in the constellation Caelum
Annual motion of Caelum
| Date | Mon, 31 August 2026 |
| Twilight start | 19:06 |
| Twilight end | 02:59 |
| Twilight duration | 8h 53m |
| Rise | 01:37 |
| Set | 08:43 |
| Elevation at transit | 15° |
| Transit time | 05:10 |
| Equatorial coordinates | RA: 04h 41m 24s", Dec: -38° 00' 27s |
| 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.