UBC 183

0.75 UTI

0.67

C_N

1.0

C_dens

1.0

C_C3

0.55

C_lit

1.0

C_dup

C3 classification AA

Number of members (P>50%) 84

Radius (P>50% members) 11.2 [arcmin]

C_N 0.67 Moderately populated
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.55 Moderately studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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UBC 183 is a moderately populated, very dense object of very 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, intermediate-age cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is moderately studied in the literature.

Relatively close Low extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for UBC 183 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	–	5.037	55.71	0.915	0.69	-2.576	-19.285
Li et al.	2025	5.005	55.714	0.934	0.661	-2.507	–
Zhang et al.	2024	5.032	55.733	–	–	–	–
Hunt & Reffert	2024	5.032	55.733	0.91	0.702	-2.597	-21.238
Cavallo et al.	2024	5.007	55.697	0.913	–	–	–
Hunt & Reffert	2023	5.032	55.733	0.91	0.702	-2.597	-21.238
He et al.	2022	5.065	55.721	0.912	0.694	-2.568	–
Tarricq et al.	2022	5.007	55.735	0.92	0.662	-2.565	–
Cantat-Gaudin et al.	2020	5.005	55.714	0.934	0.661	-2.507	–
Castro-Ginard et al.	2020	5.001	55.699	0.932	0.669	-2.501	–

💡 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]	Bfr	BSS
Li et al.	2025	1.01	0.72	–	126	-0.041	–	–	–
Zhang et al.	2024	–	–	–	–	-0.166*	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	206*	–	–
Cavallo et al.	2024	0.92	0.59	–	417	-0.100	–	–	–
Hunt & Reffert	2023	1.05	0.60	0.67	126	–	–	–	–
He et al.	2022	–	0.90	–	79	–	–	–	–
Tarricq et al.	2022	1.02	–	–	68	–	–	–	–
Cantat-Gaudin et al.	2020	1.05	0.37	–	66	–	–	–	–

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Visualization

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