UBC 1147
0.35
UTI
0.45
CN
0.34
Cdens
0.75
CC3
0.1
Clit
1.0
Cdup
Nm (P>50%)
45
Core radius and density
1.6 [pc], 1.7 [pc-2]
- CN 0.45 Poorly populated
- Cdens 0.34 Loose
- CC3 0.75 High quality
- Clit 0.1 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 1147 is a poorly populated, loose object of high C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster (see Parameters). It is rarely studied in the literature.
Data
| Reference | Year | RA [deg] | DEC [deg] | Plx [mas] | pmRA [mas/yr] | pmDE [mas/yr] | Rv [km/s] |
|---|---|---|---|---|---|---|---|
| UCC | 99999â | 326.676 | 54.494 | 0.384 | -2.795 | -2.619 | -16.991 |
| Hunt & Reffert | 2024 | 326.641 | 54.489 | 0.363 | -2.755 | -2.599 | -15.164 |
| Cavallo et al. | 2024 | 326.708 | 54.496 | 0.37 | â | â | â |
| Hunt & Reffert | 2023 | 326.641 | 54.489 | 0.363 | -2.755 | -2.599 | -15.164 |
| Castro-Ginard et al. | 2022 | 326.7 | 54.5 | 0.38 | -2.81 | -2.62 | -18.13 |
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 | 2.48 | 2.66 | 1.55 | 79 | 0.090 | 521 | â | â |
| Liu et al. | 2025 | 6.43 | 0.90 | â | 79 | â | â | â | â |
| Hunt & Reffert | 2024 | 2.48 | 2.66 | 1.55 | 73 | â | 521(1) | â | â |
| Cavallo et al. | 2024 | 2.40 | 2.81 | â | 85 | 0.090 | â | â | â |
| Hunt & Reffert | 2023 | 2.48 | 2.66 | 1.55 | 73 | â | â | â | â |
| Castro-Ginard et al. | 2022 | 2.71 | 2.04 | â | 223 | 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 140 along with FSR_0336.
Palma et al. (2025)
Classified as genetic pair P214, along with FSR_0336.
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).