UBC 1055

0.53 UTI

0.44

C_N

0.59

C_dens

1.0

C_C3

0.3

C_lit

1.0

C_dup

N₅₀ (P>50% members) 44

Stellar density (N₅₀/rad) 2.9 [N/pc²]

C3 classification AA

C_N 0.44 Poorly populated
C_dens 0.59 Moderately dense
C_C3 1.0 Very high quality
C_lit 0.3 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 1055 is a poorly populated, moderately dense object of very 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, intermediate-age cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is poorly studied in the literature.

Distant Moderate extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for UBC 1055 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–	285.409	11.734	0.264	-1.647	-5.558	35.745
Hu & Soubiran	2025	285.41	11.735	–	–	–	–
Hunt & Reffert	2024	285.406	11.73	0.268	-1.631	-5.551	37.072
Cavallo et al.	2024	285.41	11.735	0.262	–	–	–
Hunt & Reffert	2023	285.406	11.73	0.268	-1.631	-5.551	37.072
Castro-Ginard et al.	2022	285.38	11.76	0.27	-1.64	-5.55	–

💡 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–	3.44	1.93	2.15	832	0.060	643	–	–
Hu & Soubiran	2025	–	–	–	–	0.040⁽⁵⁾	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	643⁽¹⁾	–	–
Cavallo et al.	2024	3.13	1.90	–	1318	0.080	–	–	–
Hunt & Reffert	2023	3.44	2.70	2.15	305	–	–	–	–
Castro-Ginard et al.	2022	3.60	1.93	–	832	–	–	–	–

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

Visualization

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