VDB 85

(van den Bergh 85; vdBergh 85)

0.62 UTI

0.65

C_N

0.72

C_dens

0.75

C_C3

0.48

C_lit

1.0

C_dup

N_m (P>50%) 80

Core radius and density 1.7 [pc], 3.6 [pc^-2]

C3 classification AB

C_N 0.65 Moderately populated
C_dens 0.72 Moderately dense
C_C3 0.75 High quality
C_lit 0.48 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

ℹ️

VDB 85 is a moderately populated, moderately 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, young cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is poorly studied in the literature.

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

Relatively close Moderate extinction Near-solar metallicity Young

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

Cavallo et al. (2024)
Bronze sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.46 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.46 (50th percentile).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.1865, e_all=0.0752.

Data

🔍 Search references for VDB 85 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	101.742	1.348	0.553	-0.98	0.38	28.859
Almeida et al.	2025	101.729	1.333	–	–	–	–
Zhang et al.	2024	101.72	1.324	–	–	–	–
Hunt & Reffert	2024	101.72	1.324	0.54	-0.958	0.395	-1.147
Celli et al.	2024	101.718	1.32	–	–	–	–
Cavallo et al.	2024	101.796	1.354	0.546	–	–	–
Hunt & Reffert	2023	101.72	1.324	0.54	-0.958	0.395	-1.147
Dias et al.	2021	101.729	1.333	0.55	-0.973	0.345	–
Cantat-Gaudin et al.	2020	101.718	1.32	0.552	-1.0	0.328	–
Zhong et al.	2020	101.718	1.32	–	-1.0	0.328	34.392
Cantat-Gaudin & Anders	2020	101.718	1.32	0.552	-1.0	0.328	–
Cantat-Gaudin et al.	2018	101.718	1.32	0.552	-1.0	0.328	–
Dib et al.	2018	101.73	1.325	–	–	–	–
Bukowiecki et al.	2011	101.721	1.317	–	–	–	–
Dias et al.	2002	101.725	1.333	–	0.17	1.23	–
Lynga	1987	101.718	1.328	–	–	–	–

💡 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–	1.72	1.28	2.16	40	-0.052	258	–	–
Almeida et al.	2025	1.72	1.21	–	13	–	199	–	–
Zhang et al.	2024	–	–	–	–	-0.225⁽¹⁾	–	–	–
Hunt & Reffert	2024	1.68	0.99	2.16	45	–	317⁽¹⁾	–	–
Celli et al.	2024	–	–	–	4	–	127	–	–
Cavallo et al.	2024	2.01	1.21	–	35	-0.050	–	–	–
Hunt & Reffert	2023	1.68	0.99	2.16	45	–	–	–	–
Dias et al.	2021	1.72	1.21	–	13	-0.055	–	–	–
Cantat-Gaudin et al.	2020	1.69	1.35	–	4	–	–	–	–
Kounkel et al.	2020	2.03	1.44	–	23	–	–	–	–
Zhong et al.	2020	1.72⁽¹⁾	2.10	–	7685	0.000	–	–	–
Cantat-Gaudin & Anders	2020	1.72	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	1.72	–	–	–	–	–	–	–
Dib et al.	2018	1.89	–	–	48	–	–	–	–
Bukowiecki et al.	2012	–	–	–	–	–	938	–	–
Bukowiecki et al.	2011	1.68⁽¹⁾	5.90	–	71	–	–	–	–
Dias et al.	2002	1.64	6.06	–	71	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
NGC 2282	63.7	101.72	1.32	0.53	-1.08	0.33	28.86	0.24

💡 Note: The % column shows the percentage of members that VDB 85 shares with each listed object.

Visualization

ℹ️

1 2 3