UBC 72

(FoF 2143)

0.72 UTI

0.75

C_N

1.0

C_dens

0.75

C_C3

0.55

C_lit

1.0

C_dup

N₅₀ (P>50% members) 111

Stellar density (N₅₀/rad) 8.2 [N/pc²]

C3 classification AB

C_N 0.75 Rich
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 0.55 Moderately studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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UBC 72 is a rich, very dense object of high C3 quality. Its parallax locates it at a relatively close distance, above 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 metallicity parameter (see Parameters). It is moderately 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 Low extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for UBC 72 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–	90.986	26.64	0.529	0.3	-0.03	29.794
Li et al.	2025	90.986	26.651	0.52	0.342	-0.005	–
Hu & Soubiran	2025	90.976	26.636	–	–	–	–
Zhang et al.	2024	90.985	26.629	–	–	–	–
Hunt & Reffert	2024	90.985	26.629	0.528	0.309	-0.025	32.147
Cavallo et al.	2024	90.976	26.636	0.53	–	–	–
Hunt & Reffert	2023	90.985	26.629	0.528	0.309	-0.025	32.147
Cantat-Gaudin et al.	2020	90.986	26.651	0.52	0.342	-0.005	–
Cantat-Gaudin & Anders	2020	90.986	26.651	0.52	0.342	-0.005	–
Liu & Pang	2019	90.958	26.656	0.519	0.393	-0.022	–
Castro-Ginard et al.	2019	90.985	26.645	0.519	0.359	-0.008	–

💡 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–	1.8	0.695	0.77	857	-0.045	525	–	–
Li et al.	2025	1.80	0.82	–	857	-0.045	–	–	–
Hu & Soubiran	2025	–	–	–	–	-0.180⁽⁵⁾	–	–	–
Zhang et al.	2024	–	–	–	–	0.203⁽¹⁾	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	525⁽¹⁾	–	–
Cavallo et al.	2024	1.68	0.57	–	891	0.420	–	–	–
Hunt & Reffert	2023	1.75	0.47	0.77	542	–	–	–	–
Cantat-Gaudin et al.	2020	1.91	0.97	–	490	–	–	–	–
Cantat-Gaudin & Anders	2020	1.82	–	–	–	–	–	–	–
Liu & Pang	2019	–	–	–	955	-0.250	–	–	–

(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 2646	49.5	90.98	26.64	0.53	0.3	-0.03	29.57	0.0

💡 Note: The % column shows the percentage of members that UBC 72 shares with each listed object.

Visualization

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