UBC 345

0.50 UTI

0.42

C_N

0.72

C_dens

0.75

C_C3

0.31

C_lit

1.0

C_dup

C3 classification AB

Number of members (P>50%) 42

Radius (P>50% members) 5.5 [arcmin]

C_N 0.42 Poorly populated
C_dens 0.72 Moderately dense
C_C3 0.75 High quality
C_lit 0.31 Poorly studied
C_dup 1.0 Unique

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

Overview

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UBC 345 is a poorly populated, moderately dense object of high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, very young cluster (see Parameters). It is poorly 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 High extinction Near-solar metallicity Very young

Almeida et al. (2025)
Mass determination: invalid due to poor quality CMD. Isochrone match: worst fit.

Data

🔍 Search references for UBC 345 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	–	276.031	-12.237	0.469	-0.426	-1.703	-63.452
Almeida et al.	2025	275.966	-12.238	–	–	–	–
Celli et al.	2024	276.005	-12.256	–	–	–	–
Dias et al.	2021	275.966	-12.238	0.464	-0.457	-1.715	–
Cantat-Gaudin et al.	2020	276.005	-12.256	0.472	-0.452	-1.706	–
Castro-Ginard et al.	2020	275.995	-12.268	0.472	-0.455	-1.713	–

💡 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	2.04	3.40	–	8	–	657	–	–
Celli et al.	2024	–	–	–	14	–	477	–	–
Dias et al.	2021	2.04	3.40	–	8	0.230	–	–	–
Cantat-Gaudin et al.	2020	2.00	3.38	–	14	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWWDL 2334	59.5	276.04	-12.24	0.45	-0.35	-1.7	-32.63	0.23

💡 Note: The % column shows the percentage of members that UBC 345 shares with each listed object.

Visualization

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