OCSN 55

0.00 UTI

0.6

C_N

0.95

C_dens

1.0

C_C3

0.0

C_lit

0.0

C_dup

N₅₀ (P>50% members) 69

Stellar density (N₅₀/rad) 4.8 [N/pc²]

C3 classification AA

C_N 0.6 Moderately populated
C_dens 0.95 Very dense
C_C3 1.0 Very high quality
C_lit 0.0 Rarely studied
C_dup 0.0 Very likely duplicate

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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OCSN 55 is a moderately populated, very dense object of very high C3 quality. Its parallax locates it at a very close distance, near the mid-plane, affected by low extinction. It is catalogued as an intermediate-age cluster (see Parameters). It was recently reported in the literature.

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

Very close Low extinction Intermediate age

Data

🔍 Search references for OCSN 55 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–	98.926	19.715	4.7	2.934	-10.809	38.732
Qin et al.	2023	98.94	19.69	4.74	3.06	-11.05	38.15

💡 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–	0.25	0.53	–	251	–	–	–	–
Qin et al.	2023	0.25	0.53	–	251	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Theia 792	100.0	98.93	19.62	4.71	2.91	-10.78	38.73	0.62

💡 Note: The % column shows the percentage of members that OCSN 55 shares with each listed object.

Visualization

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