OCSN 78

0.31 UTI

0.55

C_N

0.27

C_dens

0.75

C_C3

0.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 59

Stellar density (N₅₀/rad) 1.4 [N/pc²]

C3 classification AB

C_N 0.55 Moderately populated
C_dens 0.27 Loose
C_C3 0.75 High quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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OCSN 78 is a moderately populated, loose object of high C3 quality. Its parallax locates it at a very close distance, near the mid-plane, affected by low extinction. It is catalogued as a young cluster (see Parameters). It was recently reported in the literature.

Note: This object shares a very small percentage of members with a later reported entry. See table with shared members information.

Very close Low extinction Young

Data

🔍 Search references for OCSN 78 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–	100.451	-19.494	2.695	-6.259	5.156	22.318
Qin et al.	2023	100.29	-19.48	2.62	-6.31	5.16	21.63

💡 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–	0.4	0.19	–	45	–	–	–	–
Qin et al.	2023	0.40	0.19	–	45	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
HSC 1827	6.8	103.08	-20.11	2.52	-6.43	4.85	16.68	0.09

💡 Note: The % column shows the percentage of members that OCSN 78 shares with each listed object.

Visualization

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