NGC 6101
Scientific overview
NGC 6101 is a globular cluster in the constellation Apus. It shines at apparent magnitude 10.08 and spans about 4.5 arcminutes of sky.
Observation guide
Guidance follows standard observing practice, derived from the object's real magnitude and position. A dark, moonless sky always helps.
Location in the sky
Precision measurements
Distances and velocities from SIMBAD · NGC 6101
| Radial velocity | 366.33 ± 0.32 km/s | SIMBAD · measured |
| Right ascension (ICRS) | 246.4505 deg | SIMBAD · measured |
| Declination (ICRS) | -72.202194 deg | SIMBAD · measured |
Full field-level provenance
- Radial velocity: Centre de données astronomiques de Strasbourg (CDS) · SIMBAD · basic · rvz_radvel · 2019MNRAS.482.5138B · direct catalogue measurement · retrieved 2026-07-11
- Right ascension (ICRS): Centre de données astronomiques de Strasbourg (CDS) · SIMBAD · basic · ra · 2010AJ....140.1830G · direct catalogue measurement · retrieved 2026-07-11
- Declination (ICRS): Centre de données astronomiques de Strasbourg (CDS) · SIMBAD · basic · dec · 2010AJ....140.1830G · 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 Apus
| Object | Type | Mag | Size (′) |
|---|---|---|---|
| IC 4499 | Globular cluster | 8.56 | 5.1 |
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.