OCSN 77

0.07 UTI

0.47

C_N

0.67

C_dens

1.0

C_C3

0.25

C_lit

0.13

C_dup

N₅₀ (P>50% members) 47

Stellar density (N₅₀/rad) 3.3 [N/pc²]

C3 classification AA

C_N 0.47 Poorly populated
C_dens 0.67 Moderately dense
C_C3 1.0 Very high quality
C_lit 0.25 Poorly studied
C_dup 0.13 Likely duplicate

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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OCSN 77 is a poorly populated, moderately dense object of very high 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, intermediate-age cluster (see Parameters). It was recently reported in the literature.

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

Close Low extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for OCSN 77 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–	112.552	-12.517	1.873	-5.823	-1.004	17.558
Hunt & Reffert	2024	112.661	-12.54	1.825	-5.767	-1.022	15.407
Cavallo et al.	2024	112.463	-12.497	1.843	–	–	–
Hunt & Reffert	2023	112.661	-12.54	1.825	-5.767	-1.022	15.407
Qin et al.	2023	112.66	-12.82	1.88	-5.79	-0.99	15.22

💡 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–	0.55	0.4	0.79	126	0.230	197	–	–
Hunt & Reffert	2024	–	–	–	–	–	197⁽¹⁾	–	–
Cavallo et al.	2024	0.55	0.45	–	126	0.230	–	–	–
Hunt & Reffert	2023	0.52	0.13	0.79	132	–	–	–	–
Qin et al.	2023	0.62	0.40	–	100	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
FoF 2424	87.2	112.51	-12.56	1.88	-5.81	-0.99	17.56	0.36
CWWDL 14639	76.6	112.41	-12.37	1.88	-5.83	-1.02	16.02	0.08

💡 Note: The % column shows the percentage of members that OCSN 77 shares with each listed object.

Visualization

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