UBC 541

0.41 UTI

0.52

C_N

1.0

C_dens

1.0

C_C3

0.5

C_lit

0.58

C_dup

C3 classification AA

Number of members (P>50%) 53

Radius (P>50% members) 3.8 [arcmin]

C_N 0.52 Moderately populated
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.5 Moderately studied
C_dup 0.58 Likely unique

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

Overview

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UBC 541 is a moderately populated, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a metal-rich, very young cluster (see Parameters). It is moderately studied in the literature.

Note: This is likely a unique object, which shares a moderate percentage of members with at least one previously reported entry. See table with shared members information.

Relatively close Moderate extinction Metal-rich Very young

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

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for UBC 541 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	–	243.011	-50.203	0.416	-2.686	-2.868	-22.345
Almeida et al.	2025	243.055	-50.172	–	–	–	–
Hunt & Reffert	2024	243.028	-50.228	0.415	-2.712	-2.836	-1.694
Celli et al.	2024	243.015	-50.188	–	–	–	–
Cavallo et al.	2024	243.007	-50.206	0.415	–	–	–
Hunt & Reffert	2023	243.028	-50.228	0.415	-2.712	-2.836	-1.694
Dias et al.	2021	243.055	-50.172	0.378	-2.698	-2.761	-41.406
Cantat-Gaudin et al.	2020	243.015	-50.188	0.391	-2.688	-2.785	–
Castro-Ginard et al.	2020	243.038	-50.181	0.388	-2.694	-2.771	–

💡 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
Almeida et al.	2025	2.41	2.81	–	9	–	1151	–	–
Hunt & Reffert	2024	–	–	–	–	–	694*	–	–
Celli et al.	2024	–	–	–	22	–	860	–	–
Cavallo et al.	2024	1.94	2.73	–	43	0.940	–	–	–
Hunt & Reffert	2023	2.22	3.12	1.90	7	–	–	–	–
Dias et al.	2021	2.41	2.81	–	9	0.451	–	–	–
Cantat-Gaudin et al.	2020	2.31	2.78	–	22	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWWDL 9645	49.1	243.02	-50.22	0.42	-2.69	-2.9	–	0.0
DBSB 99	41.5	243.05	-50.27	0.41	-2.67	-2.93	–	0.42

💡 Note: The % column shows the percentage of members that UBC 541 shares with each listed object.

Visualization

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