UPK 265

0.45 UTI

0.0

C_N

0.38

C_dens

0.38

C_C3

0.75

C_lit

1.0

C_dup

N₅₀ (P>50% members) 23

Stellar density (N₅₀/rad) 1.9 [N/pc²]

C3 classification CB

C_N 0.0 Sparse
C_dens 0.38 Loose
C_C3 0.38 Low quality
C_lit 0.75 Well-studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

MOCA 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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UPK 265 is a sparse, loose object of low C3 quality. Its parallax locates it at a close distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the age and metallicity parameters (see Parameters). It is well-studied in the literature.

Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.

Close Moderate extinction Near-solar metallicity Young

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

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for UPK 265 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–	31.922	65.448	1.16	-0.533	-0.437	-4.616
Li et al.	2025	31.915	65.449	1.131	-0.518	-0.412	–
Almeida et al.	2025	32.029	65.43	–	–	–	–
Alfonso et al.	2024	32.605	65.295	1.142	-0.598	-0.545	–
Hunt & Reffert	2024	31.506	65.459	1.156	-0.518	-0.468	-8.691
Cavallo et al.	2024	32.179	65.425	1.154	–	–	–
Hunt & Reffert	2023	31.506	65.459	1.156	-0.518	-0.468	-8.691
Almeida et al.	2023	31.997	65.343	–	–	–	–
He et al.	2022	31.642	65.476	1.16	-0.542	-0.424	–
Tarricq et al.	2022	31.923	65.464	1.156	-0.581	-0.432	–
Dias et al.	2021	32.029	65.43	1.135	-0.52	-0.39	–
Cantat-Gaudin et al.	2020	31.915	65.449	1.131	-0.518	-0.412	–
Cantat-Gaudin & Anders	2020	31.907	65.449	1.136	-0.508	-0.378	–
Sim et al.	2019	31.735	65.461	–	-0.51	-0.37	–

💡 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–	0.86	1.95	2.0	87	-0.116	195	0.75	–
Li et al.	2025	0.78	1.77	–	439	-0.235	–	–	–
Almeida et al.	2025	0.85	1.95	–	26	–	195	–	–
Alfonso et al.	2024	0.89	1.36	–	117	-0.116	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	159⁽¹⁾	–	–
Cavallo et al.	2024	0.98	2.07	–	68	0.370	–	–	–
Hunt & Reffert	2023	0.81	1.90	2.00	50	–	–	–	–
Almeida et al.	2023	0.83	2.10	–	210	-0.176	235⁽¹⁾	0.75	–
He et al.	2022	–	2.35	–	25	–	–	–	–
Tarricq et al.	2022	0.87	–	–	93	–	–	–	–
Dias et al.	2021	0.85	1.95	–	26	-0.116	–	–	–
Cantat-Gaudin et al.	2020	0.89	1.36	–	87	–	–	–	–
Cantat-Gaudin & Anders	2020	0.86	–	–	–	–	–	–	–
Sim et al.	2019	0.86	–	–	398	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWWDL 14488	80.0	31.56	65.45	1.17	-0.59	-0.42	0.69	0.08

💡 Note: The % column shows the percentage of members that UPK 265 shares with each listed object.

Visualization

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