OC 0179

0.27 UTI

0.3

C_N

0.1

C_dens

0.75

C_C3

0.1

C_lit

1.0

C_dup

N_m (P>50%) 30

Core radius and density 3.0 [pc], 0.5 [pc^-2]

C3 classification AB

C_N 0.3 Poorly populated
C_dens 0.1 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 0179 is a poorly populated, very loose object of high C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, very young cluster (see Parameters). It is rarely studied in the literature.

Note: This object shares a significant percentage of members with at least one entry reported in the same catalogue. See table with shared members information.

Distant Moderate extinction Near-solar metallicity Very young

Liu et al. (2025)
Classified as primordial binary cluster 303 along with UBC_388.

Palma et al. (2025)
Classified as tidal capture (resonant trapping pair) P64, along with UBC_388.

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Data

🔍 Search references for OC 0179 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–	338.407	56.541	0.251	-3.344	-2.642	–
Hunt & Reffert	2024	338.437	56.537	0.23	-3.349	-2.64	–
Cavallo et al.	2024	338.326	56.537	0.23	–	–	–
Hunt & Reffert	2023	338.437	56.537	0.23	-3.349	-2.64	–
Hao et al.	2022	338.369	56.561	0.323	-3.325	-2.621	–

💡 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–	4.18	1.87	0.68	19	0.101	638	–	–
Liu et al.	2025	8.05	0.69	–	26	–	–	–	–
Hunt & Reffert	2024	4.18	1.87	0.68	19	–	638⁽¹⁾	–	–
Cavallo et al.	2024	3.70	1.88	–	30	0.180	–	–	–
Hunt & Reffert	2023	4.18	1.87	0.68	19	–	–	–	–
Hao et al.	2022	–	1.27	–	16	0.022	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
OC 0178	60.0	338.3	56.53	0.24	-3.34	-2.65	–	0.21

💡 Note: The % column shows the percentage of members that OC 0179 shares with each listed object.

Visualization

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