Loading…
Loading content
Loading…
Loading contentM 28 is a globular cluster in the constellation Sagittarius. It shines at apparent magnitude 6.9 and spans about 5.1 arcminutes of sky.
Guidance follows standard observing practice, derived from the object's real magnitude and position. A dark, moonless sky always helps.
| Object | Type | Mag | Size (′) |
|---|---|---|---|
| M 25M 25 | Open cluster | 4.6 | 14.1 |
| NGC 6530NGC 6530 | Cluster with nebulosity | 4.6 | 6 |
| M 23M 23 · NGC 6494 | Open cluster | 5.5 | 16.8 |
| Lagoon NebulaM 8 · NGC 6523 | Nebula | 5.8 | 45 |
| M 21M 21 · NGC 6531 | Open cluster | 5.9 | 6 |
| M 22M 22 · NGC 6656 | Globular cluster | 6.17 | 12.6 |
| M 55M 55 · NGC 6809 | Globular cluster | 6.49 | 12 |
| M 18M 18 · NGC 6613 | Open cluster | 6.9 | 6 |
Facts on this topic will be cited from these primary and reference sources.
Openly-licensed deep-sky catalogue: object types, positions, magnitudes, sizes, morphology, and cross-identifiers.