UPK 502

0.77 UTI

0.57

C_N

1.0

C_dens

0.75

C_C3

0.75

C_lit

1.0

C_dup

N₅₀ (P>50% members) 65

Stellar density (N₅₀/rad) 18.5 [N/pc²]

C3 classification AB

C_N 0.57 Moderately populated
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 0.75 Well-studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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UPK 502 is a moderately populated, very dense object of high C3 quality. Its parallax locates it at a close distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the absorption, age, and metallicity parameters (see Parameters). It is well-studied in the literature.

Note: This object shares a moderate percentage of members with a later reported entry. See table with shared members information.

Close Low extinction Near-solar metallicity Intermediate age

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

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for UPK 502 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–	124.363	-37.774	1.429	-8.079	5.666	31.897
Li et al.	2025	124.371	-37.798	1.397	-8.119	5.621	–
Almeida et al.	2025	124.341	-37.816	–	–	–	–
Alfonso et al.	2024	124.287	-37.81	1.405	-8.053	5.706	–
Hunt & Reffert	2024	124.359	-37.779	1.431	-8.063	5.714	31.052
Cavallo et al.	2024	124.347	-37.82	1.434	–	–	–
Hunt & Reffert	2023	124.359	-37.779	1.431	-8.063	5.714	31.052
Almeida et al.	2023	124.362	-37.804	–	–	–	–
He et al.	2022	124.326	-37.792	1.433	-8.09	5.665	–
Dias et al.	2021	124.341	-37.816	1.405	-8.091	5.629	–
Cantat-Gaudin et al.	2020	124.371	-37.798	1.397	-8.119	5.621	–
Cantat-Gaudin & Anders	2020	124.362	-37.788	1.405	-8.085	5.65	–
Sim et al.	2019	124.316	-37.829	–	-8.08	5.61	–

💡 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–	0.7	0.25	0.56	104	0.158	87	0.66	–
Li et al.	2025	0.67	0.04	–	374	0.230	–	–	–
Almeida et al.	2025	0.69	0.28	–	196	–	87	–	–
Alfonso et al.	2024	0.71	0.17	–	225	0.158	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	71⁽¹⁾	–	–
Cavallo et al.	2024	0.71	0.68	–	37	-0.400	–	–	–
Hunt & Reffert	2023	0.66	0.25	0.56	104	–	–	–	–
Almeida et al.	2023	0.68	0.18	–	287	0.045	102⁽¹⁾	0.66	–
He et al.	2022	–	0.60	–	63	–	–	–	–
Tarricq et al.	2022	0.70	–	–	78	–	–	–	–
Dias et al.	2021	0.69	0.28	–	196	0.158	–	–	–
Cantat-Gaudin et al.	2020	0.71	0.17	–	72	–	–	–	–
Cantat-Gaudin & Anders	2020	0.70	–	–	–	–	–	–	–
Sim et al.	2019	0.70	–	–	71	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWWDL 14382	46.2	124.33	-37.81	1.44	-8.09	5.69	31.74	0.0

💡 Note: The % column shows the percentage of members that UPK 502 shares with each listed object.

Visualization

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