UBC 436

0.66 UTI

0.47

C_N

0.86

C_dens

0.75

C_C3

0.6

C_lit

1.0

C_dup

C3 classification AB

Number of members (P>50%) 47

Radius (P>50% members) 3.3 [arcmin]

C_N 0.47 Poorly populated
C_dens 0.86 Dense
C_C3 0.75 High quality
C_lit 0.6 Moderately studied
C_dup 1.0 Unique

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

Overview

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UBC 436 is a poorly populated, dense object of high C3 quality. Its parallax locates it at a moderate distance, above 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 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.

Distant Moderate extinction Near-solar metallicity Intermediate age

Almeida et al. (2025)
Mass determination: good fit. Isochrone match: good fit.

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for UBC 436 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	–	94.897	26.238	0.29	-0.437	-2.081	8.185
Li et al.	2025	94.897	26.234	0.296	-0.362	-2.087	–
Almeida et al.	2025	94.913	26.232	–	–	–	–
Zhang et al.	2024	94.889	26.228	–	–	–	–
Hunt & Reffert	2024	94.889	26.228	0.289	-0.451	-2.058	20.826
Cavallo et al.	2024	94.909	26.234	0.29	–	–	–
Hunt & Reffert	2023	94.889	26.228	0.289	-0.451	-2.058	20.826
Almeida et al.	2023	94.924	26.235	–	–	–	–
Dias et al.	2021	94.913	26.232	0.281	-0.343	-2.081	–
Cantat-Gaudin et al.	2020	94.897	26.234	0.296	-0.362	-2.087	–
Castro-Ginard et al.	2020	94.898	26.224	0.292	-0.362	-2.079	–

💡 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	3.18	1.04	–	509	-0.035	–	–	–
Almeida et al.	2025	3.08	1.09	–	622	–	449	–	–
Zhang et al.	2024	–	–	–	–	-0.399*	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	331*	–	–
Cavallo et al.	2024	2.81	1.08	–	479	-0.050	–	–	–
Hunt & Reffert	2023	3.29	0.57	0.43	662	–	–	–	–
Almeida et al.	2023	2.89	1.25	–	566	-0.179	604*	0.45	–
Dias et al.	2021	3.08	1.09	–	622	-0.110	–	–	–
Cantat-Gaudin et al.	2020	3.22	0.75	–	562	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWWDL 12524	85.1	94.9	26.24	0.29	-0.44	-2.08	8.93	0.02

💡 Note: The % column shows the percentage of members that UBC 436 shares with each listed object.

Visualization

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