UBC 101

0.69 UTI

0.66

C_N

1.0

C_dens

1.0

C_C3

0.4

C_lit

1.0

C_dup

N₅₀ (P>50% members) 82

Stellar density (N₅₀/rad) 11.7 [N/pc²]

C3 classification AA

C_N 0.66 Moderately populated
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.4 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 101 is a moderately populated, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by high extinction. It is catalogued as a massive, near-solar metallicity, young cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is poorly studied in the literature.

Relatively close High extinction Massive Near-solar metallicity Young

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for UBC 101 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–	279.503	-7.134	0.418	-0.27	-3.074	9.333
Li et al.	2025	279.496	-7.135	0.413	-0.319	-3.037	–
Hunt & Reffert	2024	279.505	-7.138	0.41	-0.259	-3.086	5.674
Celli et al.	2024	279.496	-7.135	–	–	–	–
Cavallo et al.	2024	279.53	-7.111	0.409	–	–	–
Hunt & Reffert	2023	279.505	-7.138	0.41	-0.259	-3.086	5.674
Cantat-Gaudin et al.	2020	279.496	-7.135	0.413	-0.319	-3.037	–
Castro-Ginard et al.	2020	279.501	-7.142	0.415	-0.311	-3.027	–

💡 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–	2.01	3.21	2.36	53	0.085	1050	–	–
Li et al.	2025	1.39	2.82	–	688	0.039	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	1574⁽¹⁾	–	–
Celli et al.	2024	–	–	–	28	–	525	–	–
Cavallo et al.	2024	1.84	3.60	–	123	0.130	–	–	–
Hunt & Reffert	2023	2.25	3.78	2.36	53	–	–	–	–
Cantat-Gaudin et al.	2020	2.18	2.82	–	28	–	–	–	–

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

Visualization

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