UPK 194

0.50 UTI

0.75

C_N

0.36

C_dens

0.75

C_C3

0.32

C_lit

1.0

C_dup

N_m (P>50%) 112

Core radius and density 2.8 [pc], 1.8 [pc^-2]

C3 classification AB

C_N 0.75 Rich
C_dens 0.36 Loose
C_C3 0.75 High quality
C_lit 0.32 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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UPK 194 is a rich, loose object of high 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 poorly studied in the literature.

Note: This object contains blue stragglers according to at least one source.

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

Close Moderate extinction Near-solar metallicity Young Contains BSS

Palma et al. (2025)
Classified as optical pair P530, along with HSC_853.

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

Cavallo et al. (2024)
Silver sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.17 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.17 (50th percentile).

Data

🔍 Search references for UPK 194 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–	336.316	64.981	1.058	-0.631	-3.279	-11.954
Li et al.	2025	336.446	65.004	1.047	-0.642	-3.126	–
Almeida et al.	2025	336.517	65.007	–	–	–	–
Alfonso et al.	2024	336.481	65.01	1.039	-0.884	-2.97	–
Hunt & Reffert	2024	336.15	64.907	1.065	-0.663	-3.157	-12.848
Cavallo et al.	2024	336.5	64.98	1.064	–	–	–
Hunt & Reffert	2023	336.15	64.907	1.065	-0.663	-3.157	-12.848
Li et al.	2023	336.134	64.93	1.06	-0.64	-3.39	–
Dias et al.	2021	336.517	65.007	1.051	-0.636	-3.084	–
Cantat-Gaudin et al.	2020	336.446	65.004	1.047	-0.642	-3.126	–
Cantat-Gaudin & Anders	2020	336.439	64.993	1.043	-0.649	-3.075	–
Sim et al.	2019	336.389	64.999	–	-0.76	-3.09	–

💡 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–	0.925	1.76	2.27	36	-0.110	380	–	1
Li et al.	2025	0.70	1.87	–	17	-0.278	–	–	–
Almeida et al.	2025	0.91	2.08	–	32	–	366	–	–
Alfonso et al.	2024	1.00	1.67	–	219	0.097	–	–	–
Hunt & Reffert	2024	0.89	1.76	2.27	36	–	393⁽¹⁾	–	–
Cavallo et al.	2024	1.00	1.95	–	14	-0.110	–	–	–
Hunt & Reffert	2023	0.89	1.76	2.27	36	–	–	–	–
Li et al.	2023	1.10	1.35	–	1259	-0.140	–	–	1⁽¹⁾
Tarricq et al.	2022	0.96	–	–	182	–	–	–	–
Dias et al.	2021	0.91	2.08	–	32	0.097	–	–	–
Cantat-Gaudin et al.	2020	1.00	1.67	–	151	–	–	–	–
Cantat-Gaudin & Anders	2020	0.93	–	–	–	–	–	–	–
Sim et al.	2019	0.92	–	–	22	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
UBC 392	42.9	336.13	64.94	1.06	-0.65	-3.34	-8.82	0.0

💡 Note: The % column shows the percentage of members that UPK 194 shares with each listed object.

Visualization

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