UPK 152

0.34 UTI

0.31

C_N

0.25

C_dens

0.25

C_C3

0.45

C_lit

1.0

C_dup

N₅₀ (P>50% members) 31

Stellar density (N₅₀/rad) 1.3 [N/pc²]

C3 classification CC

C_N 0.31 Poorly populated
C_dens 0.25 Loose
C_C3 0.25 Low quality
C_lit 0.45 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

MOCA 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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UPK 152 is a poorly populated, loose object of low C3 quality. Its parallax locates it at a close distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is poorly studied in the literature.

Close Moderate extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Almeida et al. (2025)
Mass determination: worst fit. Isochrone match: intermediate fit.

Data

🔍 Search references for UPK 152 in: SciX Simbad

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Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	319.24	56.375	1.356	3.707	-1.256	-11.398
Almeida et al.	2025	319.244	56.199	–	–	–	–
Hunt & Reffert	2024	319.341	56.287	1.339	3.685	-1.297	-10.559
Cavallo et al.	2024	319.191	56.307	1.343	–	–	–
Hunt & Reffert	2023	319.341	56.287	1.339	3.685	-1.297	-10.559
Dias et al.	2021	319.244	56.199	1.325	3.707	-1.25	–
Cantat-Gaudin et al.	2020	319.315	56.25	1.324	3.655	-1.208	–
Cantat-Gaudin & Anders	2020	319.301	56.258	1.326	3.72	-1.224	–
Sim et al.	2019	319.126	56.206	–	3.73	-1.17	–

💡 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]	B_frac	BSS
UCC	99999–	0.745	2.31	1.48	148	0.146	64	–	–
Almeida et al.	2025	0.75	2.31	–	148	–	67	–	–
Hunt & Reffert	2024	–	–	–	–	–	60⁽¹⁾	–	–
Cavallo et al.	2024	0.87	2.58	–	46	0.320	–	–	–
Hunt & Reffert	2023	0.71	2.17	1.48	192	–	–	–	–
Dias et al.	2021	0.75	2.31	–	148	-0.028	–	–	–
Cantat-Gaudin & Anders	2020	0.74	–	–	–	–	–	–	–
Sim et al.	2019	0.74	–	–	1000	–	–	–	–

(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.

Visualization

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