UBC 81

0.02 UTI

0.77

C_N

1.0

C_dens

0.75

C_C3

0.0

C_lit

0.03

C_dup

N_m (P>50%) 156

Core radius and density 1.1 [pc], 5.5 [pc^-2]

C3 classification AB

C_N 0.77 Rich
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 0.0 Rarely studied
C_dup 0.03 Very likely duplicate

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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UBC 81 is a rich, very dense object of high C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by low extinction. It is catalogued as a young cluster (see Parameters). It is rarely studied in the literature, with no articles listed in the last 6 years.

⚠️ 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.

Relatively close Low extinction Young

Data

🔍 Search references for UBC 81 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–	96.328	11.159	0.588	-1.12	-0.963	29.717
Castro-Ginard et al.	2019	96.345	11.15	0.583	-1.114	-0.937	–

💡 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–	1.58	0.82	–	66	–	–	–	–
Kounkel et al.	2020	1.58	0.82	–	66	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
COIN-Gaia 28	96.8	96.33	11.16	0.59	-1.13	-0.96	29.72	0.65
CWWDL 6296	48.1	96.33	11.16	0.59	-1.14	-0.96	29.72	0.0

💡 Note: The % column shows the percentage of members that UBC 81 shares with each listed object.

Visualization

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