UPK 230

0.62 UTI

0.39

C_N

0.78

C_dens

0.62

C_C3

0.65

C_lit

1.0

C_dup

C3 classification CA

Number of members (P>50%) 39

Radius (P>50% members) 20.3 [arcmin]

C_N 0.39 Poorly populated
C_dens 0.78 Dense
C_C3 0.62 Intermediate quality
C_lit 0.65 Moderately studied
C_dup 1.0 Unique

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

Overview

ℹ️

UPK 230 is a poorly populated, dense object of intermediate 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, intermediate-age cluster (see Parameters). It is moderately studied in the literature.

Close Moderate extinction Near-solar metallicity Intermediate age

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

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for UPK 230 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	–	353.746	71.802	1.868	4.887	-0.871	-5.464
Almeida et al.	2025	353.573	71.681	–	–	–	–
Alfonso et al.	2024	-6.574	71.557	1.817	4.898	-0.878	–
Hunt & Reffert	2024	354.486	71.896	1.835	4.768	-1.052	-10.261
Cavallo et al.	2024	352.852	71.213	1.83	–	–	–
Hunt & Reffert	2023	354.486	71.896	1.835	4.768	-1.052	-10.261
Almeida et al.	2023	353.806	71.656	–	–	–	–
Tarricq et al.	2022	353.536	71.719	1.85	4.89	-0.934	–
Dias et al.	2021	353.573	71.681	1.848	4.9	-0.778	-5.322
Cantat-Gaudin et al.	2020	353.465	71.788	1.841	4.892	-0.809	–
Cantat-Gaudin & Anders	2020	353.394	71.777	1.837	4.879	-0.807	–
Sim et al.	2019	353.431	71.803	–	4.9	-0.79	–

💡 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	0.54	1.33	–	129	–	62	–	–
Alfonso et al.	2024	0.56	0.93	–	64	-0.033	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	57*	–	–
Cavallo et al.	2024	0.53	1.25	–	115	-0.230	–	–	–
Hunt & Reffert	2023	0.52	0.93	2.07	123	–	–	–	–
Almeida et al.	2023	0.53	1.41	–	63	-0.029	88*	0.34	–
Tarricq et al.	2022	0.55	–	–	76	–	–	–	–
Dias et al.	2021	0.54	1.33	–	129	-0.033	–	–	–
Cantat-Gaudin et al.	2020	0.56	0.93	–	72	–	–	–	–
Cantat-Gaudin & Anders	2020	0.54	–	–	–	–	–	–	–
Sim et al.	2019	0.54	–	–	224	–	–	–	–

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

Visualization

ℹ️

1 2 3