UBC 249

0.65 UTI

0.71

C_N

0.68

C_dens

0.75

C_C3

0.55

C_lit

1.0

C_dup

C3 classification AB

Number of members (P>50%) 92

Radius (P>50% members) 9.3 [arcmin]

C_N 0.71 Moderately populated
C_dens 0.68 Moderately dense
C_C3 0.75 High quality
C_lit 0.55 Moderately studied
C_dup 1.0 Unique

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

Overview

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UBC 249 is a moderately populated, moderately dense object of high C3 quality. Its parallax locates it at a relatively close distance, below the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age and metallicity parameters (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 Moderate 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 249 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	–	136.951	-52.954	0.52	-6.053	4.277	9.836
Li et al.	2025	136.943	-52.945	0.498	-6.083	4.249	–
Almeida et al.	2025	136.964	-52.932	–	–	–	–
Hunt & Reffert	2024	136.858	-52.907	0.514	-6.034	4.291	13.302
Cavallo et al.	2024	137.018	-52.85	0.516	–	–	–
Hunt & Reffert	2023	136.858	-52.907	0.514	-6.034	4.291	13.302
Almeida et al.	2023	137.011	-52.945	–	–	–	–
Dias et al.	2021	136.964	-52.932	0.488	-6.075	4.249	–
Cantat-Gaudin et al.	2020	136.943	-52.945	0.498	-6.083	4.249	–
Castro-Ginard et al.	2020	136.934	-52.934	0.494	-6.084	4.242	–

💡 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	1.56	0.62	–	424	-0.046	–	–	–
Almeida et al.	2025	1.85	1.26	–	38	–	426	–	–
Hunt & Reffert	2024	–	–	–	–	–	566*	–	–
Cavallo et al.	2024	2.01	1.34	–	138	0.350	–	–	–
Hunt & Reffert	2023	1.81	1.16	2.34	115	–	–	–	–
Almeida et al.	2023	1.72	1.00	–	151	0.152	715*	0.60	–
Dias et al.	2021	1.85	1.26	–	38	0.053	–	–	–
Cantat-Gaudin et al.	2020	1.94	0.48	–	316	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWWDL 13308	57.6	136.92	-52.92	0.52	-6.02	4.31	10.76	0.07

💡 Note: The % column shows the percentage of members that UBC 249 shares with each listed object.

Visualization

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