BDSB96

0.82 UTI

0.8

C_N

1.0

C_dens

0.75

C_C3

0.78

C_lit

1.0

C_dup

N₅₀ (P>50% members) 241

Stellar density (N₅₀/rad) 8.4 [N/pc²]

C3 classification AB

C_N 0.8 Rich
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 0.78 Well-studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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BDSB96 is a rich, very dense object of high C3 quality. Its parallax locates it at a relatively close 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 absorption parameter (see Parameters). It is well-studied in the literature.

Note: This object shares a moderate percentage of members with 2 later reported entries. See table with shared members information.

Relatively close Moderate extinction Near-solar metallicity Very young

Liu et al. (2025)
Classified as primordial binary cluster 29 along with vdBergh_92, and as primordial binary cluster 309 along with OC_0377, and of multiple system 14 along with OC_0377, vdBergh_92 and FSR_1178.

Palma et al. (2025)
Part of multiple system G89, along with OC_0377, FSR_1178 and vdBergh_92.

Cavallo et al. (2024)
Silver sample.

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

Data

🔍 Search references for BDSB96 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–	106.344	-12.337	0.855	-3.682	1.095	31.203
Liu et al.	2025	106.33	-12.32	0.86	-3.66	1.0	15.61
Almeida et al.	2025	106.349	-12.322	–	–	–	–
Hunt & Reffert	2024	106.332	-12.325	0.865	-3.661	0.996	15.613
Celli et al.	2024	106.332	-12.327	–	–	–	–
Cavallo et al.	2024	106.458	-12.567	0.864	–	–	–
Hunt & Reffert	2023	106.332	-12.325	0.865	-3.661	0.996	15.613
Almeida et al.	2023	106.359	-12.32	–	–	–	–
He et al.	2022	106.534	-12.603	0.864	-3.45	0.92	–
Dias et al.	2021	106.349	-12.322	0.863	-3.715	1.05	27.502
Cantat-Gaudin et al.	2020	106.332	-12.327	0.844	-3.843	1.071	–
Cantat-Gaudin & Anders	2020	106.332	-12.327	0.844	-3.843	1.071	–
Soubiran et al.	2018	106.332	-12.327	–	–	–	29.04
Cantat-Gaudin et al.	2018	106.332	-12.327	0.844	-3.843	1.071	–
Dias et al.	2014	106.325	-12.329	–	-1.38	-0.69	–
Dias et al.	2002	106.325	-12.329	–	-1.38	-0.69	–

💡 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–	1.15	1.15	1.79	7	-0.144	170	0.55	–
Liu et al.	2025	1.66	0.25	–	11	–	–	–	–
Almeida et al.	2025	1.16	1.48	–	7	–	198	–	–
Hunt & Reffert	2024	–	–	–	–	–	158⁽¹⁾	–	–
Celli et al.	2024	–	–	–	8	–	99	–	–
Cavallo et al.	2024	1.13	0.82	–	6	-0.220	–	–	–
Hunt & Reffert	2023	1.10	0.97	1.79	7	–	–	–	–
Almeida et al.	2023	1.08	1.13	–	5	0.003	181⁽¹⁾	0.55	–
He et al.	2022	–	1.55	–	8	–	–	–	–
Dias et al.	2021	1.16	1.48	–	7	-0.144	–	–	–
Cantat-Gaudin et al.	2020	1.14	1.22	–	8	–	–	–	–
Cantat-Gaudin & Anders	2020	1.15	–	–	–	–	–	–	–
Soubiran et al.	2018	1.15	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	1.15	–	–	–	–	–	–	–
Dias et al.	2002	1.40	1.15	–	5	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
FOF 2216	31.5	106.58	-12.81	0.87	-3.41	0.78	29.19	0.29
XDOCC 03	0.4	106.91	-13.03	0.86	-3.38	0.6	29.19	0.07

💡 Note: The % column shows the percentage of members that BDSB96 shares with each listed object.

Visualization

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