UBC 190

0.08 UTI

0.56

C_N

0.13

C_dens

0.75

C_C3

0.19

C_lit

0.22

C_dup

N_m (P>50%) 63

Core radius and density 3.3 [pc], 0.7 [pc^-2]

C3 classification AB

C_N 0.56 Moderately populated
C_dens 0.13 Very loose
C_C3 0.75 High quality
C_lit 0.19 Rarely studied
C_dup 0.22 Likely duplicate

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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UBC 190 is a moderately populated, very loose object of high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, very young cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is rarely studied in the literature.

⚠️ Warning: This is likely a duplicate object, which shares a large percentage of members with at least one previously reported entry. See table with shared members information.

Relatively close Moderate extinction Near-solar metallicity Very young

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.98 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.98 (50th percentile).

Data

🔍 Search references for UBC 190 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–	37.431	59.791	0.339	-0.065	-0.488	–
Li et al.	2025	37.448	59.782	0.314	-0.09	-0.483	–
Hunt & Reffert	2024	37.376	59.833	0.364	-0.054	-0.486	–
Celli et al.	2024	37.448	59.782	–	–	–	–
Cavallo et al.	2024	37.439	59.801	0.362	–	–	–
Hunt & Reffert	2023	37.376	59.833	0.364	-0.054	-0.486	–
Cantat-Gaudin et al.	2020	37.448	59.782	0.314	-0.09	-0.483	–
Castro-Ginard et al.	2020	37.475	59.788	0.313	-0.083	-0.484	–

💡 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–	2.65	2.93	1.61	19	0.223	737	–	–
Li et al.	2025	2.45	3.00	–	50	-0.035	–	–	–
Hunt & Reffert	2024	2.65	3.09	1.61	12	–	849⁽¹⁾	–	–
Celli et al.	2024	–	–	–	19	–	625	–	–
Cavallo et al.	2024	2.72	2.83	–	12	0.480	–	–	–
Hunt & Reffert	2023	2.65	3.09	1.61	12	–	–	–	–
Cantat-Gaudin et al.	2020	3.22	2.68	–	19	–	–	–	–
Kounkel et al.	2020	2.57	2.86	–	62	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
Ferrero 38	77.8	37.57	59.79	0.34	-0.09	-0.49	-51.17	0.33
CWWDL 2007	71.4	37.43	59.78	0.35	-0.06	-0.49	–	0.05
OC 0249	36.5	37.37	59.83	0.35	-0.07	-0.46	–	0.03
CWWDL 8509	4.8	37.29	59.48	0.37	-0.03	-0.59	–	0.06

💡 Note: The % column shows the percentage of members that UBC 190 shares with each listed object.

Visualization

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