UBC 584
0.66
UTI
0.75
CN
1.0
Cdens
0.75
CC3
0.4
Clit
1.0
Cdup
Stellar density (N50/rad)
45.5 [N/pc2]
- CN 0.75 Rich
- Cdens 1.0 Very dense
- CC3 0.75 High quality
- Clit 0.4 Poorly studied
- Cdup 1.0 Unique
đĨ Members
đ Colab
đŦ Bayestar19
MOCA
đ CDS
đ Simbad
đ CDS (Îą, δ)
đ Simbad (Îą, δ)
MOCA
đ CDS
đ Simbad
đ CDS (Îą, δ)
đ Simbad (Îą, δ)
Overview
UBC 584 is a rich, very dense object of high C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, very young cluster (see Parameters). It is poorly studied in the literature.
Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 304.202 | 41.972 | 0.547 | -3.741 | -4.228 | 9.675 |
| Hunt & Reffert | 2024 | 304.21 | 41.969 | 0.559 | -3.745 | -4.295 | 3.802 |
| Celli et al. | 2024 | 304.213 | 41.983 | â | â | â | â |
| Cavallo et al. | 2024 | 304.23 | 41.934 | 0.565 | â | â | â |
| Hunt & Reffert | 2023 | 304.21 | 41.969 | 0.559 | -3.745 | -4.295 | 3.802 |
| Cantat-Gaudin et al. | 2020 | 304.213 | 41.983 | 0.54 | -3.678 | -4.135 | â |
| Castro-Ginard et al. | 2020 | 304.223 | 41.977 | 0.543 | -3.687 | -4.137 | â |
đĄ Note: The UCC values are estimated from its identified members.
| Reference | Year | Dist [kpc] | Av [mag] | DAv [mag] | Age [Myr] | [Fe/H] [dex] | Mass [Msun] | Bfrac | BSS |
|---|---|---|---|---|---|---|---|---|---|
| UCC | 99999â | 1.675 | 2.74 | 2.49 | 10 | -0.120 | 307 | â | â |
| Liu et al. | 2025 | 3.30 | 0.91 | â | 10 | â | â | â | â |
| Hunt & Reffert | 2024 | â | â | â | â | â | 469(1) | â | â |
| Celli et al. | 2024 | â | â | â | 14 | â | 145 | â | â |
| Cavallo et al. | 2024 | 1.58 | 2.78 | â | 7 | -0.120 | â | â | â |
| Hunt & Reffert | 2023 | 1.68 | 2.98 | 2.49 | 3 | â | â | â | â |
| Cantat-Gaudin et al. | 2020 | 1.67 | 2.70 | â | 14 | â | â | â | â |
(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.
Liu et al. (2025)
Classified as primordial binary cluster 139 along with FSR_0219.
Palma et al. (2025)
Part of multiple system G256, along with vdBergh_130, Theia_286, UBC_375, FSR_0219 and NGC_6910.
Cavallo et al. (2024)
Silver sample.