UPK 122

0.28 UTI

0.0

C_N

0.19

C_dens

0.62

C_C3

0.3

C_lit

1.0

C_dup

N₅₀ (P>50% members) 24

Stellar density (N₅₀/rad) 0.9 [N/pc²]

C3 classification AC

C_N 0.0 Sparse
C_dens 0.19 Very loose
C_C3 0.62 Intermediate quality
C_lit 0.3 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 122 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a close distance, above the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the absorption and metallicity parameters (see Parameters). It is poorly studied in the literature.

Close Low extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as a moving group.

Data

🔍 Search references for UPK 122 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–	302.599	47.712	1.091	-1.281	-9.281	-11.494
Zhang et al.	2024	302.696	47.751	–	–	–	–
Cavallo et al.	2024	302.593	47.554	1.088	–	–	–
Hunt & Reffert	2023	302.696	47.751	1.089	-1.233	-9.279	-11.514
He et al.	2022	302.673	47.75	1.098	-1.352	-9.274	–
Sim et al.	2019	302.66	47.286	–	-1.34	-9.26	–

💡 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–	0.9	0.6	0.39	326	0.236	–	–	–
Zhang et al.	2024	–	–	–	–	-0.227⁽¹⁾	–	–	–
Cavallo et al.	2024	0.93	0.21	–	427	0.700	–	–	–
Hunt & Reffert	2023	0.88	0.60	0.39	138	–	–	–	–
He et al.	2022	–	1.05	–	224	–	–	–	–
Sim et al.	2019	0.90	–	–	2512	–	–	–	–

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

Visualization

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