UPK 604

0.62 UTI

0.32

C_N

0.78

C_dens

0.75

C_C3

0.62

C_lit

1.0

C_dup

N₅₀ (P>50% members) 32

Stellar density (N₅₀/rad) 3.9 [N/pc²]

C3 classification AB

C_N 0.32 Poorly populated
C_dens 0.78 Dense
C_C3 0.75 High quality
C_lit 0.62 Moderately studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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UPK 604 is a poorly populated, dense object of high C3 quality. Its parallax locates it at a close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, very young cluster, but with a large variance across recent sources for the absorption parameter (see Parameters). It is moderately studied in the literature.

Close Moderate extinction Near-solar metallicity Very young

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

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for UPK 604 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–	224.443	-59.72	1.311	-4.589	-3.697	-2.872
Almeida et al.	2025	224.316	-59.809	–	–	–	–
Alfonso et al.	2024	224.055	-59.668	1.268	-4.443	-3.762	–
Hunt & Reffert	2024	224.52	-59.667	1.32	-4.576	-3.695	-2.118
Cavallo et al.	2024	224.348	-59.807	1.319	–	–	–
Hunt & Reffert	2023	224.52	-59.667	1.32	-4.576	-3.695	-2.118
Almeida et al.	2023	224.478	-59.953	–	–	–	–
He et al.	2022	224.509	-59.683	1.34	-4.617	-3.653	–
Dias et al.	2021	224.316	-59.809	1.307	-4.548	-3.711	–
Cantat-Gaudin et al.	2020	224.4	-59.75	1.305	-4.535	-3.678	–
Cantat-Gaudin & Anders	2020	224.4	-59.75	1.313	-4.549	-3.735	–
Sim et al.	2019	224.434	-59.702	–	-4.52	-3.62	–

💡 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–	0.74	1.225	1.52	13	-0.153	95	0.5	–
Almeida et al.	2025	0.74	1.77	–	13	–	116	–	–
Alfonso et al.	2024	0.70	1.00	–	16	-0.209	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	75⁽¹⁾	–	–
Cavallo et al.	2024	0.80	1.78	–	8	-0.050	–	–	–
Hunt & Reffert	2023	0.72	1.09	1.52	8	–	–	–	–
Almeida et al.	2023	0.74	1.36	–	11	-0.098	95⁽¹⁾	0.50	–
He et al.	2022	–	0.05	–	4	–	–	–	–
Dias et al.	2021	0.74	1.77	–	13	-0.209	–	–	–
Cantat-Gaudin et al.	2020	0.70	1.00	–	43	–	–	–	–
Cantat-Gaudin & Anders	2020	0.74	–	–	–	–	–	–	–
Sim et al.	2019	0.76	–	–	14	–	–	–	–

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

Visualization

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