UBC 237

0.64 UTI

0.48

C_N

1.0

C_dens

0.5

C_C3

0.6

C_lit

1.0

C_dup

C3 classification BB

Number of members (P>50%) 48

Radius (P>50% members) 4.8 [arcmin]

C_N 0.48 Poorly populated
C_dens 1.0 Very dense
C_C3 0.5 Intermediate quality
C_lit 0.6 Moderately studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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UBC 237 is a poorly populated, very dense object of intermediate C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It is moderately studied in the literature.

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

Relatively close Low extinction Near-solar metallicity Intermediate age

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

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for UBC 237 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	–	118.592	-29.722	0.555	-2.411	2.122	37.812
Li et al.	2025	118.572	-29.718	0.541	-2.428	2.097	–
Hu & Soubiran	2025	118.594	-29.72	–	–	–	–
Almeida et al.	2025	118.604	-29.73	–	–	–	–
Hunt & Reffert	2024	118.585	-29.722	0.558	-2.427	2.128	37.809
Cavallo et al.	2024	118.594	-29.72	0.559	–	–	–
Hunt & Reffert	2023	118.585	-29.722	0.558	-2.427	2.128	37.809
Almeida et al.	2023	118.606	-29.741	–	–	–	–
Dias et al.	2021	118.604	-29.73	0.539	-2.445	2.093	–
Cantat-Gaudin et al.	2020	118.572	-29.718	0.541	-2.428	2.097	–
Castro-Ginard et al.	2020	118.574	-29.709	0.541	-2.426	2.098	–

💡 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]	Bfr	BSS
Li et al.	2025	1.59	0.85	–	402	-0.030	–	–	–
Hu & Soubiran	2025	–	–	–	–	-0.060*	–	–	–
Almeida et al.	2025	1.70	1.14	–	292	–	336	–	–
Hunt & Reffert	2024	–	–	–	–	–	194*	–	–
Cavallo et al.	2024	1.70	0.82	–	525	0.140	–	–	–
Hunt & Reffert	2023	1.71	0.79	0.52	275	–	–	–	–
Almeida et al.	2023	1.72	1.20	–	315	-0.118	511*	0.57	–
Dias et al.	2021	1.70	1.14	–	292	0.045	–	–	–
Cantat-Gaudin et al.	2020	1.79	0.90	–	66	–	–	–	–

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWWDL 4783	54.2	118.58	-29.73	0.55	-2.41	2.14	34.71	0.0

💡 Note: The % column shows the percentage of members that UBC 237 shares with each listed object.

Visualization

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