OC 0064

0.16 UTI

0.54

C_N

0.83

C_dens

0.75

C_C3

0.06

C_lit

0.36

C_dup

N_m (P>50%) 58

Core radius and density 1.4 [pc], 4.2 [pc^-2]

C3 classification AB

C_N 0.54 Moderately populated
C_dens 0.83 Dense
C_C3 0.75 High quality
C_lit 0.06 Rarely studied
C_dup 0.36 Possibly duplicate

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

ℹ️

OC 0064 is a moderately populated, dense object of high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by very high extinction. It is catalogued as a massive, near-solar metallicity, young cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is rarely studied in the literature.

⚠️ Warning: This is possibly a duplicate object, which shares a significant percentage of members with at least one previously reported entry. See table with shared members information.

Relatively close Very high extinction Massive Near-solar metallicity Young

Palma et al. (2025)
Classified as optical pair P156, along with HSC_321.

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.92 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.92 (50th percentile).

Data

🔍 Search references for OC 0064 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	282.461	-0.333	0.49	-0.398	-1.965	-31.625
Hunt & Reffert	2024	282.466	-0.331	0.461	-0.385	-1.899	-35.34
Cavallo et al.	2024	282.476	-0.335	0.458	–	–	–
Hunt & Reffert	2023	282.466	-0.331	0.461	-0.385	-1.899	-35.34
Hao et al.	2022	282.464	-0.328	0.54	-0.397	-1.938	–

💡 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–	2.05	5.115	2.85	35	0.372	1536	–	–
Hunt & Reffert	2024	2.05	5.17	2.85	35	–	1536⁽¹⁾	–	–
Cavallo et al.	2024	2.06	5.06	–	39	0.480	–	–	–
Hunt & Reffert	2023	2.05	5.17	2.85	35	–	–	–	–
Hao et al.	2022	–	4.56	–	1	0.265	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWWDL 2352	87.9	282.46	-0.33	0.48	-0.42	-1.98	-31.63	0.06
FoF 2172	63.8	282.46	-0.32	0.48	-0.4	-1.92	-163.47	0.34

💡 Note: The % column shows the percentage of members that OC 0064 shares with each listed object.

Visualization

ℹ️

1 2