UBC 122

0.69 UTI

0.76

C_N

1.0

C_dens

1.0

C_C3

0.35

C_lit

1.0

C_dup

N₅₀ (P>50% members) 135

Stellar density (N₅₀/rad) 13.7 [N/pc²]

C3 classification AA

C_N 0.76 Rich
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.35 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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UBC 122 is a rich, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate extinction. It is catalogued as a massive, 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.

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

Relatively close Moderate extinction Massive Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for UBC 122 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–	288.144	15.723	0.381	-0.561	-3.171	14.067
Li et al.	2025	288.142	15.717	0.358	-0.555	-3.132	–
Hunt & Reffert	2024	288.138	15.731	0.381	-0.577	-3.183	12.373
Cavallo et al.	2024	288.156	15.734	0.385	–	–	–
Hunt & Reffert	2023	288.138	15.731	0.381	-0.577	-3.183	12.373
Cantat-Gaudin et al.	2020	288.142	15.717	0.358	-0.555	-3.132	–
Castro-Ginard et al.	2020	288.144	15.71	0.352	-0.568	-3.135	–

💡 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–	2.56	2.82	1.88	200	0.256	1577	–	–
Li et al.	2025	1.94	2.74	–	310	-0.039	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	1577⁽¹⁾	–	–
Cavallo et al.	2024	2.65	2.92	–	195	0.550	–	–	–
Hunt & Reffert	2023	2.47	2.90	1.88	206	–	–	–	–
Cantat-Gaudin et al.	2020	2.67	2.40	–	51	–	–	–	–

(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 2824	49.6	288.14	15.72	0.39	-0.54	-3.17	20.9	0.0

💡 Note: The % column shows the percentage of members that UBC 122 shares with each listed object.

Visualization

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