UBC 618

0.63 UTI

0.33

C_N

0.97

C_dens

1.0

C_C3

0.44

C_lit

1.0

C_dup

C3 classification AA

Number of members (P>50%) 33

Radius (P>50% members) 1.4 [arcmin]

C_N 0.33 Poorly populated
C_dens 0.97 Very dense
C_C3 1.0 Very high quality
C_lit 0.44 Poorly studied
C_dup 1.0 Unique

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

Overview

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UBC 618 is a poorly populated, very dense object of very high C3 quality. Its parallax locates it at a large distance, below the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It is poorly studied in the literature.

Very distant Moderate extinction Near-solar metallicity Intermediate age

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

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for UBC 618 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	–	96.24	7.601	0.156	0.236	0.044	38.027
Almeida et al.	2025	96.259	7.612	–	–	–	–
Hunt & Reffert	2024	96.238	7.618	0.14	0.224	0.039	38.028
Cavallo et al.	2024	96.249	7.6	0.136	–	–	–
Hunt & Reffert	2023	96.238	7.618	0.14	0.224	0.039	38.028
Dias et al.	2021	96.259	7.612	0.144	0.25	0.018	37.319
Cantat-Gaudin et al.	2020	96.241	7.617	0.132	0.251	0.062	–
Castro-Ginard et al.	2020	96.259	7.618	0.133	0.235	0.051	–

💡 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
Almeida et al.	2025	5.39	1.55	–	358	–	484	–	–
Hunt & Reffert	2024	–	–	–	–	–	513*	–	–
Cavallo et al.	2024	4.85	1.81	–	219	-0.440	–	–	–
Hunt & Reffert	2023	6.80	1.48	0.68	268	–	–	–	–
Dias et al.	2021	5.39	1.55	–	358	-0.104	–	–	–
Cantat-Gaudin et al.	2020	5.01	0.90	–	724	–	–	–	–

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

Visualization

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