OC 0126

0.27 UTI

0.25

C_N

0.15

C_dens

0.75

C_C3

0.1

C_lit

1.0

C_dup

N_m (P>50%) 25

Core radius and density 2.4 [pc], 0.8 [pc^-2]

C3 classification BA

C_N 0.25 Poorly populated
C_dens 0.15 Very loose
C_C3 0.75 High 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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OC 0126 is a poorly populated, very loose object of high C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is rarely studied in the literature.

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

Relatively close Moderate extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD classes: 0.13 (50th percentile), true positive (human-assigned).

Hunt & Reffert (2023)
Classified as open cluster. CMD classes: 0.13 (50th percentile), true positive (human-assigned).

Data

🔍 Search references for OC 0126 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–	304.459	42.115	0.584	-1.669	-3.156	-20.874
Hu & Soubiran	2025	304.445	42.141	–	–	–	–
Hunt & Reffert	2024	304.466	42.147	0.585	-1.683	-3.147	-12.578
Cavallo et al.	2024	304.445	42.141	0.587	–	–	–
Hunt & Reffert	2023	304.466	42.147	0.585	-1.683	-3.147	-12.578
Hao et al.	2022	304.466	42.15	0.594	-1.668	-3.153	-25.625

💡 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–	1.64	1.79	1.33	811	0.161	117	–	–
Hu & Soubiran	2025	–	–	–	–	-0.220⁽⁵⁾	–	–	–
Hunt & Reffert	2024	1.64	1.77	1.33	811	–	117⁽¹⁾	–	–
Cavallo et al.	2024	1.58	1.81	–	1175	0.350	–	–	–
Hunt & Reffert	2023	1.64	1.77	1.33	811	–	–	–	–
Hao et al.	2022	–	5.12	–	794	0.161	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 106	96.0	304.45	42.14	0.59	-1.67	-3.17	-19.55	0.05

💡 Note: The % column shows the percentage of members that OC 0126 shares with each listed object.

Visualization

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