OCSN 177

0.44 UTI

0.81

C_N

1.0

C_dens

1.0

C_C3

0.0

C_lit

0.78

C_dup

N₅₀ (P>50% members) 272

Stellar density (N₅₀/rad) 13.4 [N/pc²]

C3 classification AA

C_N 0.81 Rich
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.0 Rarely studied
C_dup 0.78 Very likely unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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OCSN 177 is a rich, 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 a very young cluster (see Parameters). It was recently reported in the literature.

Note: This is very likely a unique object, which shares a small percentage of members with at least one previously reported entry, and a moderate percentage with at least one entry reported in the same catalogue. See table with shared members information.

Very close Low extinction Very young

Data

🔍 Search references for OCSN 177 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–	185.965	-63.246	9.357	-37.377	-11.214	12.41
Qin et al.	2023	185.87	-63.37	9.34	-37.35	-11.89	12.36

💡 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–	0.11	0.22	–	14	–	–	–	–
Qin et al.	2023	0.11	0.22	–	14	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
HSC 2505	44.5	185.58	-64.05	9.33	-37.8	-10.73	12.41	0.0
OCSN 178	27.9	191.21	-57.65	8.99	-34.71	-14.46	11.89	0.47
CWNU 1136	22.1	186.94	-60.63	9.22	-36.69	-12.15	12.27	0.35
HSC 2468	21.7	185.31	-56.63	9.04	-35.54	-11.74	12.65	0.24

💡 Note: The % column shows the percentage of members that OCSN 177 shares with each listed object.

Visualization

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