NGC 6388 is a globular cluster located in the constellation Scorpius. The cluster was discovered by Scottish astronomer James Dunlop on May 13, 1826 using a 22.86 cm (9 in) reflector telescope. Due to its moderate apparent magnitude (+6.72), a telescope is required to see it.
| NGC 6388 | |
|---|---|
| Observation data (J2000 epoch) | |
| Class | III[1][2] |
| Constellation | Scorpius[2] |
| Right ascension | 17h 36m 17.461s[3][4] |
| Declination | −44° 44′ 08.34″[3][4] |
| Distance | 32.3 kilolight-years (10 kiloparsecs)[2] |
| Apparent magnitude (V) | 6.72[2] |
| Apparent dimensions (V) | 6.2 arcmins[2] |
| Physical characteristics | |
| Mass | 2.17×106[5] M☉ |
| Tidal radius | 6.21 arcmins[6] |
| VHB | 16.85[6] |
| Metallicity | |
| See also: Globular cluster, List of globular clusters | |
New General Catalogue 6000 to 6499 | |
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