UBC 353
0.53
UTI
0.64
CN
0.62
Cdens
1.0
CC3
0.19
Clit
1.0
Cdup
Nm (P>50%)
78
Core radius and density
1.2 [pc], 3.1 [pc-2]
- CN 0.64 Moderately populated
- Cdens 0.62 Moderately dense
- CC3 1.0 Very high quality
- Clit 0.19 Rarely 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 353 is a moderately populated, moderately dense object of very high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by high extinction. It is catalogued as a metal-rich, young cluster, but with a large variance across recent sources for the distance parameter (see Parameters). It is rarely studied in the literature.
Note: This object shares a large percentage of members with 2 later reported entries. 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 | 280.836 | -3.737 | 0.46 | -0.628 | -2.191 | 29.973 |
| Hunt & Reffert | 2024 | 280.828 | -3.731 | 0.468 | -0.641 | -2.2 | -41.774 |
| Celli et al. | 2024 | 280.863 | -3.736 | â | â | â | â |
| Cavallo et al. | 2024 | 280.834 | -3.745 | 0.471 | â | â | â |
| Hunt & Reffert | 2023 | 280.828 | -3.731 | 0.468 | -0.641 | -2.2 | -41.774 |
| Cantat-Gaudin et al. | 2020 | 280.854 | -3.735 | 0.438 | -0.62 | -2.152 | â |
| Castro-Ginard et al. | 2020 | 280.862 | -3.736 | 0.44 | -0.605 | -2.162 | 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 | 2.28 | 3.26 | 2.25 | 30 | 0.840 | 613 | â | â |
| Liu et al. | 2025 | 8.55 | 1.28 | â | 28 | â | â | â | â |
| Hunt & Reffert | 2024 | 1.94 | 3.60 | 2.25 | 14 | â | 809(1) | â | â |
| Celli et al. | 2024 | â | â | â | 30 | â | 417 | â | â |
| Cavallo et al. | 2024 | 2.38 | 3.44 | â | 52 | 0.840 | â | â | â |
| Hunt & Reffert | 2023 | 1.94 | 3.60 | 2.25 | 14 | â | â | â | â |
| Cantat-Gaudin et al. | 2020 | 2.18 | 3.00 | â | 30 | â | â | â | â |
| Kounkel et al. | 2020 | 2.57 | 3.08 | â | 60 | 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 136 along with Dolidze_32.
Palma et al. (2025)
Classified as tidal capture (resonant trapping pair) P211, along with Dolidze_32.
Cavallo et al. (2024)
Gold sample.
Hunt & Reffert (2024)
Classified as open cluster. CMD class: 1.00 (50th percentile).
Hunt & Reffert (2023)
Classified as open cluster. CMD class: 1.00 (50th percentile).