| Identity |
| Name: | mu Sagittarii |
| Hipparcos catalog ID: | 89341 |
| Other star catalog entries: | HD 166937
SAO 186497
BD B-21 4908
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| Appearance |
| Visual magnitude: | 3.84 (source: Tycho) |
| Spectral type: | B2III: |
| |
| Position and motion (Epoch J1991.25) in J2000 reference frame |
| Right ascension | 18h 13m 45.80865s (+/-0.00002s) |
| Declination | -21° 3' 31.7899" (+/-0.0002") |
| Parallax: | 0.09 (+/-0.28) mas |
| Derived distance: | 36240 light-years |
| Proper motion in R.A.: | 0.3 (+/-0.3) mas/year |
| Proper motion in declination: | -0.48 (+/-0.19) mas/year |
| Constellation: | Sagittarius | |