UBC 248

0.66 UTI

0.61

C_N

1.0

C_dens

1.0

C_C3

0.35

C_lit

1.0

C_dup

N₅₀ (P>50% members) 72

Stellar density (N₅₀/rad) 5.4 [N/pc²]

C3 classification AA

C_N 0.61 Moderately populated
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.35 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 248 is a moderately populated, very dense object of very high C3 quality. Its parallax locates it at a moderate 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 metallicity 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 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.

Castro-Ginard et al. (2020)
Coincidence with Sim et al. (2019, J. Korean Astron. Soc., 52, 145) or Liu & Pang (2019ApJS..245...32L), see Sect. 4.1.5.

Data

🔍 Search references for UBC 248 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–	137.98	-52.233	0.327	-4.084	3.925	23.664
Almeida et al.	2025	137.985	-52.244	–	–	–	–
Hunt & Reffert	2024	137.978	-52.23	0.328	-4.072	3.925	19.254
Cavallo et al.	2024	137.955	-52.227	0.33	–	–	–
Hunt & Reffert	2023	137.978	-52.23	0.328	-4.072	3.925	19.254
Dias et al.	2021	137.985	-52.244	0.28	-4.098	3.892	24.152
Castro-Ginard et al.	2020	137.986	-52.235	0.3	-4.108	3.907	–

💡 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–	2.61	1.51	0.71	194	-0.298	551	–	–
Almeida et al.	2025	2.61	1.51	–	187	–	649	–	–
Hunt & Reffert	2024	–	–	–	–	–	453⁽¹⁾	–	–
Cavallo et al.	2024	2.23	1.66	–	355	-0.670	–	–	–
Hunt & Reffert	2023	2.73	1.34	0.71	201	–	–	–	–
Dias et al.	2021	2.61	1.51	–	187	0.074	–	–	–

(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
PHOC 28	94.4	137.98	-52.24	0.33	-4.08	3.92	23.66	0.04

💡 Note: The % column shows the percentage of members that UBC 248 shares with each listed object.

Visualization

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