UBC 247

0.80 UTI

0.7

C_N

1.0

C_dens

1.0

C_C3

0.65

C_lit

1.0

C_dup

C3 classification AA

Number of members (P>50%) 89

Radius (P>50% members) 7.9 [arcmin]

C_N 0.7 Moderately populated
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.65 Moderately studied
C_dup 1.0 Unique

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

Overview

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UBC 247 is a moderately populated, very dense object of very 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 large 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: intermediate fit. Isochrone match: good fit.

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for UBC 247 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	–	126.674	-50.727	0.876	-5.052	6.167	17.871
Li et al.	2025	126.678	-50.729	0.854	-5.083	6.093	–
Hu & Soubiran	2025	126.633	-50.686	–	–	–	–
Almeida et al.	2025	126.662	-50.708	–	–	–	–
Hunt & Reffert	2024	126.734	-50.75	0.88	-5.05	6.167	18.232
Cavallo et al.	2024	126.633	-50.686	0.879	–	–	–
Hunt & Reffert	2023	126.734	-50.75	0.88	-5.05	6.167	18.232
He et al.	2022	126.688	-50.721	0.877	-5.046	6.176	–
Dias et al.	2021	126.662	-50.708	0.87	-5.068	6.107	–
Cantat-Gaudin et al.	2020	126.678	-50.729	0.854	-5.083	6.093	–
Castro-Ginard et al.	2020	126.662	-50.713	0.865	-5.08	6.107	–

💡 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	1.06	1.08	–	209	-0.026	–	–	–
Hu & Soubiran	2025	–	–	–	–	-0.170*	–	–	–
Almeida et al.	2025	1.10	1.09	–	191	–	208	–	–
Hunt & Reffert	2024	–	–	–	–	–	275*	–	–
Cavallo et al.	2024	1.13	0.92	–	550	0.510	–	–	–
Hunt & Reffert	2023	1.08	1.01	1.57	124	–	–	–	–
He et al.	2022	–	1.35	–	79	–	–	–	–
Tarricq et al.	2022	1.11	–	–	60	–	–	–	–
Dias et al.	2021	1.10	1.09	–	191	0.180	–	–	–
Cantat-Gaudin et al.	2020	1.15	0.98	–	58	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
LISC 3315	98.9	126.67	-50.73	0.88	-5.05	6.18	17.87	0.1

💡 Note: The % column shows the percentage of members that UBC 247 shares with each listed object.

Visualization

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