étoiles
| Nom | Type | Notoriété | Popularité |
|---|---|---|---|
| Sigma Cygni | Astre | 9 | 0.0 |
| Sigma Draconis | Astre | 25 | 2.3 |
| Sigma Geminorum | Astre | 10 | 0.0 |
| Sigma Herculis | Astre | 9 | 0.0 |
| Sigma Hydrae | Astre | 15 | 0.5 |
| Sigma Leonis | Astre | 16 | 0.5 |
| Sigma Librae | Astre | 21 | 1.3 |
| Sigma Lupi | Astre | 11 | 0.0 |
| Sigma Octantis | Astre | 32 | 6.4 |
| Sigma Ophiuchi | Astre | 5 | 0.0 |
| Sigma Orionis | Astre | 22 | 3.6 |
| Sigma Pegasi | Astre | 6 | 0.0 |
| Sigma Persei | Astre | 8 | 0.0 |
| Sigma Puppis | Astre | 14 | 0.4 |
| Sigma Sagittarii | Astre | 24 | 3.2 |
| Sigma Scorpii | Astre | 20 | 1.2 |
| Sigma1 Ursae Majoris | Astre | 8 | 0.1 |
| Sigma2 Ursae Majoris | Astre | 7 | 0.0 |
| Simp J013656.5+093347 | Astre | 17 | 0.5 |
| Sirius | Astre | 105 | 328.2 |
| Situla | Astre | 18 | 0.4 |
| Sk 118 | Astre | 1 | 0.0 |
| Smc 18136 | Astre | 4 | 0.0 |
| Smss J031300.36-670839.3 | Astre | 19 | 0.6 |
| Smss J114447.77–430859.3 | Astre | 2 | 0.0 |
| Soleil | Astre | 358 | 1010.6 |
| Sphère de Dyson | Astre | 53 | 155.8 |
| Sr 21 | Astre | 1 | 0.0 |
| Ss 433 | Astre | 18 | 2.0 |
| Ss Cygni | Astre | 16 | 0.4 |
| Stein 2051 | Astre | 7 | 0.0 |
| Stephenson 2-11 | Astre | 2 | 0.1 |
| Stephenson 2-18 | Astre | 30 | 29.7 |
| Sterrennacht | Astre | 11 | 0.0 |
| Su Andromedae | Astre | 7 | 0.0 |
| Su Aurigae | Astre | 9 | 0.1 |
| Sualocin | Astre | 24 | 0.3 |
| Sursauteur Gamma Mou | Objet | 21 | 1.9 |
| Sv Vulpeculae | Astre | 7 | 0.0 |
| Sw Andromedae | Astre | 4 | 0.0 |
| Sw Sextantis | Astre | 2 | 0.0 |
| Swift J1818.0−1607 | Astre | 4 | 0.1 |
| Sx Corvi | Astre | 4 | 0.0 |
| Sx Phoenicis | Astre | 8 | 0.3 |
| Sy Eridani | Astre | 1 | 0.0 |
| Sz 123 | Astre | 1 | 0.3 |
| T Andromedae | Astre | 6 | 0.0 |
| T Antliae | Astre | 6 | 0.0 |
| T Aurigae | Astre | 12 | 0.0 |
| T Bootis | Astre | 4 | 0.0 |