OC 0024

0.28 UTI

0.26

C_N

0.79

C_dens

0.5

C_C3

0.06

C_lit

0.85

C_dup

N_m (P>50%) 26

Core radius and density 0.6 [pc], 4.0 [pc^-2]

C3 classification BB

C_N 0.26 Poorly populated
C_dens 0.79 Dense
C_C3 0.5 Intermediate quality
C_lit 0.06 Rarely studied
C_dup 0.85 Very likely unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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OC 0024 is a poorly populated, dense object of intermediate C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, very young cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is rarely studied in the literature.

Note: This is very likely a unique object, which shares a small percentage of members with at least one previously reported entry. See table with shared members information.

Relatively close Moderate extinction Near-solar metallicity Very young

Palma et al. (2025)
Part of multiple system G129, along with Kronberger_2, UBC_96, HSC_175 and ASCC_94.

Cavallo et al. (2024)
Wood sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.26 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.26 (50th percentile).

Data

🔍 Search references for OC 0024 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–	274.17	-16.998	0.576	0.829	-1.866	-38.051
Hunt & Reffert	2024	274.175	-16.997	0.59	0.829	-1.896	-12.424
Cavallo et al.	2024	274.162	-16.982	0.588	–	–	–
Hunt & Reffert	2023	274.175	-16.997	0.59	0.829	-1.896	-12.424
Hao et al.	2022	274.177	-17.013	0.58	0.789	-1.898	–

💡 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–	1.6	2.175	2.76	16	-0.026	657	–	–
Hunt & Reffert	2024	1.60	2.12	2.76	16	–	657⁽¹⁾	–	–
Cavallo et al.	2024	1.89	2.23	–	71	-0.150	–	–	–
Hunt & Reffert	2023	1.60	2.12	2.76	16	–	–	–	–
Hao et al.	2022	–	4.13	–	6	0.097	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
VVVX CL089	15.4	274.2	-16.99	0.63	0.58	-1.83	-28.9	0.15

💡 Note: The % column shows the percentage of members that OC 0024 shares with each listed object.

Visualization

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