Nebula · Ara
Rim Nebula
Deep skyNGC 6188
Scientific overview
Rim Nebula is a nebula in the constellation Ara. It spans about 20 arcminutes of sky.
Location in the sky
Precision measurements
Distances and velocities from SIMBAD · NGC 6188
| Right ascension (ICRS) | 250 deg | SIMBAD · measured |
| Declination (ICRS) | -48.5 deg | SIMBAD · measured |
Full field-level provenance
- Right ascension (ICRS): Centre de données astronomiques de Strasbourg (CDS) · SIMBAD · basic · ra · direct catalogue measurement · retrieved 2026-07-11
- Declination (ICRS): Centre de données astronomiques de Strasbourg (CDS) · SIMBAD · basic · dec · direct catalogue measurement · retrieved 2026-07-11
Physical size is derived from the OpenNGC angular size and the catalogued distance (small-angle: size = angle × distance). This is a Galactic object: its Doppler shift is shown as a radial velocity, not a cosmological redshift. Fields a source did not provide are omitted, never invented.
Other objects in Ara
| Object | Type | Mag | Size (′) |
|---|---|---|---|
| NGC 6397C 86 · NGC 6397 | Globular cluster | 5.17 | 15.3 |
| NGC 6250NGC 6250 | Cluster with nebulosity | 5.9 | 9.6 |
| IC 4651 | Open cluster | 6.9 | 9.6 |
| NGC 6208NGC 6208 | Open cluster | 7.2 | 8.4 |
| NGC 6200NGC 6200 | Open cluster | 7.4 | 8.1 |
| NGC 6204NGC 6204 | Open cluster | 8.2 | 4.5 |
| NGC 6362NGC 6362 | Globular cluster | 8.86 | 8.4 |
| NGC 6352C 81 · NGC 6352 | Globular cluster | 8.87 | 7.2 |
Sources
The primary and reference sources this topic draws on.
- OpenNGCOpenNGC (M. Verga) — NGC/IC, Messier, and Caldwell catalogue data
Openly-licensed deep-sky catalogue: object types, positions, magnitudes, sizes, morphology, and cross-identifiers.