UBC 1622

0.28 UTI

0.0

C_N

0.44

C_dens

0.75

C_C3

0.1

C_lit

1.0

C_dup

N_m (P>50%) 23

Core radius and density 1.1 [pc], 2.2 [pc^-2]

C3 classification AB

C_N 0.0 Sparse
C_dens 0.44 Loose
C_C3 0.75 High quality
C_lit 0.1 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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UBC 1622 is a sparse, loose object of high C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It is rarely studied in the literature.

Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.

Relatively close Low extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Data

🔍 Search references for UBC 1622 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–	147.599	-48.206	0.39	-6.064	4.367	3.858
Hu & Soubiran	2025	147.59	-48.212	–	–	–	–
Hunt & Reffert	2024	147.599	-48.218	0.384	-6.053	4.375	3.677
Cavallo et al.	2024	147.59	-48.212	0.384	–	–	–
Hunt & Reffert	2023	147.599	-48.218	0.384	-6.053	4.375	3.677
Castro-Ginard et al.	2022	147.59	-48.22	0.38	-6.07	4.35	4.42

💡 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–	2.38	0.39	0.81	666	-0.155	148	–	–
Hu & Soubiran	2025	–	–	–	–	-0.260⁽⁵⁾	–	–	–
Hunt & Reffert	2024	2.38	0.30	0.81	729	–	148⁽¹⁾	–	–
Cavallo et al.	2024	2.25	0.70	–	603	-0.050	–	–	–
Hunt & Reffert	2023	2.38	0.29	0.81	728	–	–	–	–
Castro-Ginard et al.	2022	2.96	0.48	–	410	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWWDL 12626	76.0	147.58	-48.2	0.38	-6.09	4.37	3.79	0.05

💡 Note: The % column shows the percentage of members that UBC 1622 shares with each listed object.

Visualization

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