DBSB 39

(MWSC 1665)

0.46 UTI

0.38

C_N

0.39

C_dens

0.75

C_C3

0.4

C_lit

1.0

C_dup

N₅₀ (P>50% members) 38

Stellar density (N₅₀/rad) 1.9 [N/pc²]

C3 classification AB

C_N 0.38 Poorly populated
C_dens 0.39 Loose
C_C3 0.75 High quality
C_lit 0.4 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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DBSB 39 is a poorly populated, loose object of high C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the mass parameter (see Parameters). It is poorly 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 Moderate extinction Near-solar metallicity Young

Liu et al. (2025)
Classified as tidal capture (resonant trapping binary) 132 along with UBC_490.

Palma et al. (2025)
Classified as optical pair P18, along with UBC_490.

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for DBSB 39 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–	141.149	-53.108	0.36	-4.971	3.844	–
Hunt & Reffert	2024	141.126	-53.126	0.358	-4.96	3.843	19.786
Cavallo et al.	2024	141.142	-53.085	0.361	–	–	–
Hunt & Reffert	2023	141.126	-53.126	0.358	-4.96	3.843	19.786
Just et al.	2023	141.098	-53.132	–	–	–	–
Kharchenko et al.	2016	141.098	-53.132	–	–	–	–
Kharchenko et al.	2013	141.103	-53.136	–	-0.73	7.19	–

💡 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–	2.39	1.6	2.15	25	0.490	423	–	–
Liu et al.	2025	4.41	0.55	–	16	–	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	828⁽¹⁾	–	–
Cavallo et al.	2024	2.39	1.24	–	34	0.490	–	–	–
Hunt & Reffert	2023	2.50	1.60	2.15	18	–	–	–	–
Just et al.	2023	–	–	–	25	–	18	–	–
Kharchenko et al.	2016	1.86	2.39	–	25	–	–	–	–
Kharchenko et al.	2013	1.86	2.39	–	25	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
UBC 489	97.4	141.15	-53.08	0.35	-4.95	3.82	–	0.18

💡 Note: The % column shows the percentage of members that DBSB 39 shares with each listed object.

Visualization

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