UBC 55

0.00 UTI

0.68

C_N

1.0

C_dens

0.75

C_C3

0.0

C_lit

0.0

C_dup

C3 classification AB

Number of members (P>50%) 85

Radius (P>50% members) 10.4 [arcmin]

C_N 0.68 Moderately populated
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 0.0 Rarely studied
C_dup 0.0 Very likely duplicate

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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UBC 55 is a moderately populated, very dense object of high C3 quality. Its parallax locates it at a close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster (see Parameters). It is rarely studied 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.

Close Moderate extinction Near-solar metallicity Young

Data

🔍 Search references for UBC 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	–	66.347	46.124	1.105	-1.073	-2.614	-11.574
Alfonso et al.	2024	66.373	46.128	1.075	-1.068	-2.615	–
Cantat-Gaudin et al.	2020	66.364	46.122	1.079	-1.067	-2.604	–
Cantat-Gaudin & Anders	2020	66.364	46.122	1.079	-1.067	-2.604	–

💡 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]	Bfr	BSS
Alfonso et al.	2024	0.90	1.38	–	30	-0.117	–	–	–
Cantat-Gaudin et al.	2020	0.90	1.38	–	34	–	–	–	–
Cantat-Gaudin & Anders	2020	0.90	–	–	–	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
FSR 0686	100.0	66.37	46.13	1.1	-1.09	-2.61	-13.09	0.8

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

Visualization

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