UBC 63

0.52 UTI

0.4

C_N

0.44

C_dens

0.75

C_C3

0.5

C_lit

1.0

C_dup

C3 classification AB

Number of members (P>50%) 40

Radius (P>50% members) 9.4 [arcmin]

C_N 0.4 Poorly populated
C_dens 0.44 Loose
C_C3 0.75 High quality
C_lit 0.5 Moderately studied
C_dup 1.0 Unique

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

Overview

ℹ️

UBC 63 is a poorly populated, loose 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 near-solar metallicity, young cluster (see Parameters). It is moderately studied in the literature.

Note: This object shares a small percentage of members with 2 later reported entries. See table with shared members information.

Relatively close Low extinction Near-solar metallicity Young

Almeida et al. (2025)
Mass determination: intermediate fit. Isochrone match: good fit.

Data

🔍 Search references for UBC 63 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	–	79.65	37.841	0.644	1.076	-3.554	-26.846
Li et al.	2025	79.664	37.815	0.649	1.096	-3.516	–
Almeida et al.	2025	79.647	37.813	–	–	–	–
Almeida et al.	2023	79.639	37.808	–	–	–	–
Dias et al.	2021	79.647	37.813	0.626	1.102	-3.571	–
Cantat-Gaudin et al.	2020	79.664	37.815	0.649	1.096	-3.516	–
Cantat-Gaudin & Anders	2020	79.664	37.815	0.649	1.096	-3.516	–
Castro-Ginard et al.	2019	79.668	37.823	0.648	1.115	-3.563	–

💡 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
Li et al.	2025	1.52	0.76	–	49	-0.234	–	–	–
Almeida et al.	2025	1.47	0.84	–	21	–	291	–	–
Almeida et al.	2023	1.48	0.75	–	22	-0.106	228*	0.53	–
Tarricq et al.	2022	1.47	–	–	66	–	–	–	–
Dias et al.	2021	1.47	0.84	–	21	-0.181	–	–	–
Cantat-Gaudin et al.	2020	1.55	0.45	–	60	–	–	–	–
Cantat-Gaudin & Anders	2020	1.48	–	–	–	–	–	–	–

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
HSC 1323	22.5	79.39	37.86	0.64	0.99	-3.53	-19.41	0.16
OC 0287	20.0	79.46	38.03	0.62	1.04	-3.6	-19.37	0.12

💡 Note: The % column shows the percentage of members that UBC 63 shares with each listed object.

Visualization

ℹ️

1 2