UPK 416

0.09 UTI

0.0

C_N

0.13

C_dens

0.12

C_C3

0.1

C_lit

1.0

C_dup

N_m (P>50%) 22

Core radius and density 1.4 [pc], 0.7 [pc^-2]

C3 classification DC

C_N 0.0 Sparse
C_dens 0.13 Very loose
C_C3 0.12 Very low quality
C_lit 0.1 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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UPK 416 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a close distance, below the mid-plane, affected by moderate extinction. It is catalogued as a low-mass, near-solar metallicity, young cluster (see Parameters). It is rarely studied in the literature.

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Close Moderate extinction Low mass Near-solar metallicity Young

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.13 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.13 (50th percentile).

Data

🔍 Search references for UPK 416 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–	91.024	-4.258	1.105	-1.299	1.506	37.967
Zhang et al.	2024	91.087	-4.256	–	–	–	–
Hunt & Reffert	2024	91.087	-4.256	1.086	-1.272	1.534	35.056
Cavallo et al.	2024	91.133	-4.278	1.107	–	–	–
Hunt & Reffert	2023	91.087	-4.256	1.086	-1.272	1.534	35.056
Sim et al.	2019	90.935	-4.198	–	-1.26	1.48	–

💡 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	1.18	1.02	65	-0.014	44	–	–
Zhang et al.	2024	–	–	–	–	-0.108⁽¹⁾	–	–	–
Hunt & Reffert	2024	0.85	1.18	1.02	51	–	44⁽¹⁾	–	–
Cavallo et al.	2024	0.92	1.76	–	93	0.080	–	–	–
Hunt & Reffert	2023	0.85	1.18	1.02	51	–	–	–	–
Sim et al.	2019	0.87	–	–	79	–	–	–	–

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

Visualization

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