Constellations
Sextans constellation
Sextans is a constellation created by Johannes Hevelius in the late 17th century. With it, the Danzig astronomer commemorated his own measuring instrument, a large sextant he used to determine star positions and which was lost when his observatory burned down. There is therefore no ancient myth. The constellation is very faint, with no star reaching fourth magnitude, and it lies near the celestial equator between Leo and Hydra. Of interest for telescopes are the Spindle Galaxy, NGC 3115, and the Sextans Dwarf Galaxy, a faint satellite of our Milky Way. From Central Europe Sextans stands in the south on spring evenings, just south of bright Regulus. You will need a dark sky to make out its stars.
The brightest stars in Sextans
| Star | HIP | Magnitude | Distance | Light set off | Name this star |
|---|---|---|---|---|---|
| α Sex | 49641 | 4.48 | 283 light years | around 1740 | Name this star: α Sex |
| γ Sex | 48437 | 5.07 | 278 light years | around 1750 | Name this star: γ Sex |
| β Sex | 51437 | 5.08 | 405 light years | around 1620 | Name this star: β Sex |
| δ Sex | 51362 | 5.19 | 322 light years | around 1700 | Name this star: δ Sex |
| ε Sex | 50414 | 5.25 | 193 light years | around 1830 | Name this star: ε Sex |
| HIP 51046 | 51046 | 5.60 | 397 light years | around 1630 | Name this star: HIP 51046 |
| 18 Sex | 49865 | 5.64 | 473 light years | around 1550 | Name this star: 18 Sex |
| HIP 47960 | 47960 | 5.65 | 263 light years | around 1760 | Name this star: HIP 47960 |
| 19 Sex | 50027 | 5.77 | 416 light years | around 1610 | Name this star: 19 Sex |
| 35 Sex | 52452 | 5.77 | 553 light years | around 1470 | Name this star: 35 Sex |
| 41 Sex | 52980 | 5.80 | 311 light years | around 1720 | Name this star: 41 Sex |
| HIP 52948 | 52948 | 5.85 | 341 light years | around 1690 | Name this star: HIP 52948 |
| HIP 48519 | 48519 | 5.90 | 929 light years | around 1100 | Name this star: HIP 48519 |
| 17 Sex | 49812 | 5.91 | 596 light years | around 1430 | Name this star: 17 Sex |
| HIP 52863 | 52863 | 5.92 | 546 light years | around 1480 | Name this star: HIP 52863 |
Distances from the Hipparcos catalogue. For very distant stars they are uncertain – the year the light set off is therefore only a rough guide.
Frequently asked questions
When can you see the Sextans constellation?
The best time to see Sextans is in the evening in March, when the constellation reaches its highest point in the south around 10 pm.
What is the brightest star in Sextans?
The brightest star in Sextans is α Sex with an apparent magnitude of 4.48, about 283 light years away.
Can I name a star in Sextans?
Yes – for free at Sternschenker. Our catalogue contains 39 naked-eye stars in Sextans. Pick one, give it a name and download your certificate as a PDF. The name is symbolic and not recognised by the IAU.
Which star will it be?
The sky is waiting. Naming your star takes about two minutes.
Name a star in Sextans