OC 0510

0.15 UTI

0.0

C_N

0.1

C_dens

0.5

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 22

Core radius and density 1.4 [pc], 0.5 [pc^-2]

C3 classification BB

C_N 0.0 Sparse
C_dens 0.1 Very loose
C_C3 0.5 Intermediate quality
C_lit 0.06 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 0510 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a moderate distance, near 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.

⚠️ 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.

Relatively close Moderate extinction Near-solar metallicity Intermediate age

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 0510 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–	140.308	-50.813	0.391	-5.354	3.548	–
Hunt & Reffert	2024	140.295	-50.825	0.383	-5.329	3.54	–
Cavallo et al.	2024	140.348	-50.821	0.387	–	–	–
Hunt & Reffert	2023	140.295	-50.825	0.383	-5.329	3.54	–
Hao et al.	2022	140.34	-50.772	0.394	-5.359	3.509	–

💡 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–	2.3	2.005	1.43	115	0.191	270	–	–
Hunt & Reffert	2024	2.30	1.90	1.43	115	–	270⁽¹⁾	–	–
Cavallo et al.	2024	2.38	2.11	–	132	0.360	–	–	–
Hunt & Reffert	2023	2.30	1.90	1.43	115	–	–	–	–
Hao et al.	2022	–	2.99	–	63	0.022	–	–	–

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

Visualization

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