UBC 76

0.41 UTI

0.48

C_N

0.28

C_dens

0.75

C_C3

0.26

C_lit

1.0

C_dup

N₅₀ (P>50% members) 48

Stellar density (N₅₀/rad) 1.4 [N/pc²]

C3 classification AB

C_N 0.48 Poorly populated
C_dens 0.28 Loose
C_C3 0.75 High quality
C_lit 0.26 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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UBC 76 is a poorly populated, loose object of high C3 quality. Its parallax locates it at a relatively close distance, below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is poorly studied in the literature.

Note: This object shares a small percentage of members with at least one entry reported in the same catalogue. See table with shared members information.

Relatively close Low extinction Near-solar metallicity Young

Palma et al. (2025)
Classified as genetic pair P247, along with UBC_77.

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

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 76 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–	89.015	17.281	0.576	0.126	-1.136	19.303
Almeida et al.	2025	88.995	17.342	–	–	–	–
Zhang et al.	2024	88.887	17.265	–	–	–	–
Hunt & Reffert	2024	88.887	17.265	0.557	0.144	-1.147	19.299
Cavallo et al.	2024	88.938	17.283	0.565	–	–	–
Hunt & Reffert	2023	88.887	17.265	0.557	0.144	-1.147	19.299
Dias et al.	2021	88.995	17.342	0.541	0.124	-1.131	–
Cantat-Gaudin et al.	2020	88.994	17.328	0.573	0.126	-1.124	–
Cantat-Gaudin & Anders	2020	88.994	17.328	0.573	0.126	-1.124	–
Castro-Ginard et al.	2019	89.004	17.339	0.572	0.138	-1.107	–

💡 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–	1.61	0.955	1.83	52	-0.235	176	–	–
Almeida et al.	2025	1.61	1.01	–	63	–	131	–	–
Zhang et al.	2024	–	–	–	–	-0.235⁽¹⁾	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	220⁽¹⁾	–	–
Cavallo et al.	2024	1.51	0.90	–	40	-0.280	–	–	–
Hunt & Reffert	2023	1.61	0.68	1.83	72	–	–	–	–
Dias et al.	2021	1.61	1.01	–	63	0.031	–	–	–
Cantat-Gaudin et al.	2020	1.73	0.59	–	37	–	–	–	–
Kounkel et al.	2020	1.60	1.19	–	31	–	–	–	–
Cantat-Gaudin & Anders	2020	1.66	–	–	–	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
UBC 77	12.5	89.18	16.99	0.6	0.31	-1.22	–	0.49

💡 Note: The % column shows the percentage of members that UBC 76 shares with each listed object.

Visualization

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