UBC 289

0.45 UTI

0.75

C_N

0.49

C_dens

0.75

C_C3

0.13

C_lit

1.0

C_dup

N_m (P>50%) 107

Core radius and density 2.4 [pc], 2.5 [pc^-2]

C3 classification AB

C_N 0.75 Rich
C_dens 0.49 Loose
C_C3 0.75 High quality
C_lit 0.13 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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UBC 289 is a rich, loose object of high C3 quality. Its parallax locates it at a moderate distance, above 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.

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

Relatively close Moderate extinction Near-solar metallicity Young

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.99 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.99 (50th percentile).

Data

🔍 Search references for UBC 289 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–	191.177	-61.154	0.492	-4.302	-0.078	-34.228
Hunt & Reffert	2024	191.15	-61.176	0.484	-4.301	-0.076	-34.249
Cavallo et al.	2024	191.213	-61.149	0.489	–	–	–
Hunt & Reffert	2023	191.15	-61.176	0.484	-4.301	-0.076	-34.249
Cantat-Gaudin et al.	2020	191.193	-61.154	0.472	-4.278	-0.082	–
Castro-Ginard et al.	2020	191.197	-61.151	0.474	-4.289	-0.08	–

💡 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–	1.91	1.85	2.5	95	0.210	757	–	–
Hunt & Reffert	2024	1.88	1.85	2.50	95	–	757⁽¹⁾	–	–
Cavallo et al.	2024	1.91	2.02	–	162	0.210	–	–	–
Hunt & Reffert	2023	1.88	1.85	2.50	95	–	–	–	–
Cantat-Gaudin et al.	2020	2.00	1.28	–	138	–	–	–	–
Kounkel et al.	2020	2.12	2.07	–	55	–	–	–	–

(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWWDL 11395	75.7	191.2	-61.16	0.49	-4.32	-0.08	-34.23	0.01
CWWDL 13980	32.7	191.23	-61.09	0.49	-4.33	-0.12	–	0.05

💡 Note: The % column shows the percentage of members that UBC 289 shares with each listed object.

Visualization

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