NGC 1984
Scientific overview
NGC 1984 is an open cluster in the constellation Dorado. It shines at apparent magnitude 9.99 and spans about 1.5 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 1984
| Right ascension (ICRS) | 81.916667 deg | SIMBAD · measured |
| Declination (ICRS) | -69.135 deg | SIMBAD · measured |
Full field-level provenance
- Right ascension (ICRS): Centre de données astronomiques de Strasbourg (CDS) · SIMBAD · basic · ra · 2010A&A...517A..50G · direct catalogue measurement · retrieved 2026-07-11
- Declination (ICRS): Centre de données astronomiques de Strasbourg (CDS) · SIMBAD · basic · dec · 2010A&A...517A..50G · 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 Dorado
| Object | Type | Mag | Size (′) |
|---|---|---|---|
| 30 Dor ClusterC 103 · NGC 2070 | H II region | 7.25 | 16 |
| NGC 2074NGC 2074 | Cluster with nebulosity | 8.5 | 4 |
| NGC 1955NGC 1955 | H II region | 8.87 | 4 |
| NGC 1850NGC 1850 | Globular cluster | 8.96 | 3 |
| NGC 2014NGC 2014 | Nebula | 8.97 | 5.1 |
| NGC 1553NGC 1553 | Lenticular galaxy | 9.31 | 6.25 |
| NGC 1747NGC 1747 | Open cluster | 9.37 | 4.4 |
| NGC 1763NGC 1763 | Cluster with nebulosity | 9.4 | 5.2 |
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.