UBC 1321

0.47 UTI

0.38

C_N

1.0

C_dens

0.38

C_C3

0.3

C_lit

1.0

C_dup

N₅₀ (P>50% members) 38

Stellar density (N₅₀/rad) 15.0 [N/pc²]

C3 classification CB

C_N 0.38 Poorly populated
C_dens 1.0 Very dense
C_C3 0.38 Low quality
C_lit 0.3 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 1321 is a poorly populated, very dense object of low C3 quality. Its parallax locates it at a moderate 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 age parameter (see Parameters). It is poorly studied in the literature.

Note: This object shares a large 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 1321 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–	100.62	12.866	0.347	0.814	-1.512	–
Hu & Soubiran	2025	100.621	12.863	–	–	–	–
Hunt & Reffert	2024	100.623	12.862	0.346	0.822	-1.502	–
Cavallo et al.	2024	100.621	12.863	0.344	–	–	–
Hunt & Reffert	2023	100.623	12.862	0.346	0.822	-1.502	–
Castro-Ginard et al.	2022	100.62	12.88	0.35	0.84	-1.5	–

💡 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–	2.58	0.91	0.55	289	-0.010	206	–	–
Hu & Soubiran	2025	–	–	–	–	-0.060⁽⁵⁾	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	206⁽¹⁾	–	–
Cavallo et al.	2024	2.55	0.99	–	501	0.040	–	–	–
Hunt & Reffert	2023	2.58	0.91	0.55	289	–	–	–	–
Castro-Ginard et al.	2022	3.17	0.61	–	116	–	–	–	–

(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 11968	94.7	100.61	12.87	0.34	0.82	-1.51	–	0.06

💡 Note: The % column shows the percentage of members that UBC 1321 shares with each listed object.

Visualization

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