OC 0077

0.34 UTI

0.29

C_N

0.43

C_dens

0.38

C_C3

0.3

C_lit

1.0

C_dup

N₅₀ (P>50% members) 29

Stellar density (N₅₀/rad) 2.2 [N/pc²]

C3 classification CB

C_N 0.29 Poorly populated
C_dens 0.43 Loose
C_C3 0.38 Low quality
C_lit 0.3 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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OC 0077 is a poorly populated, loose object of low C3 quality. Its parallax locates it at a close distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the absorption and metallicity parameters (see Parameters). It is poorly studied in the literature.

Close Low extinction Near-solar metallicity Young

Liu et al. (2025)
Classified as primordial binary cluster 301 along with Roslund_1.

Palma et al. (2025)
Classified as genetic pair P231, along with HSC_447.

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for OC 0077 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–	294.848	16.567	1.081	-0.883	-5.916	-11.771
Hunt & Reffert	2024	294.871	16.449	1.085	-0.903	-5.92	-4.449
Cavallo et al.	2024	294.815	16.588	1.084	–	–	–
Hunt & Reffert	2023	294.871	16.449	1.085	-0.903	-5.92	-4.449
Hao et al.	2022	294.869	16.488	1.092	-0.891	-5.896	–

💡 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–	0.87	0.79	1.56	38	-0.349	116	–	–
Liu et al.	2025	1.34	0.43	–	49	–	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	116⁽¹⁾	–	–
Cavallo et al.	2024	0.75	1.58	–	98	-0.810	–	–	–
Hunt & Reffert	2023	0.87	1.00	1.56	28	–	–	–	–
Hao et al.	2022	–	0.58	–	20	0.112	–	–	–

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

Visualization

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