Desvoivres 2

0.19 UTI

0.0

C_N

0.43

C_dens

0.38

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 24

Core radius and density 0.9 [pc], 2.1 [pc^-2]

C3 classification CB

C_N 0.0 Sparse
C_dens 0.43 Loose
C_C3 0.38 Low quality
C_lit 0.06 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Desvoivres 2 is a sparse, loose object of low 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 (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.

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Relatively close Moderate extinction Near-solar metallicity Young

Palma et al. (2025)
Part of multiple system G20, along with HSC_1629, NGC_2244, Collinder_107 and Collinder_106.

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.97 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.97 (50th percentile).

Bica et al. (2019)
The Preliminary Amateur Open Cluster Catalog, Version 08/03/2003.

Data

🔍 Search references for Desvoivres 2 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–	99.975	6.058	0.651	-1.53	0.959	–
Hunt & Reffert	2024	99.98	6.037	0.641	-1.518	0.944	–
Cavallo et al.	2024	99.951	6.071	0.65	–	–	–
Hunt & Reffert	2023	99.98	6.037	0.641	-1.518	0.944	–
Bica et al.	2019	99.999	6.0	–	–	–	–

💡 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–	1.44	1.28	0.86	83	0.390	89	–	–
Hunt & Reffert	2024	1.44	1.28	0.86	83	–	89⁽¹⁾	–	–
Cavallo et al.	2024	1.55	1.42	–	56	0.390	–	–	–
Hunt & Reffert	2023	1.44	1.28	0.86	83	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 3776	92.0	99.97	6.05	0.66	-1.53	0.97	–	0.01

💡 Note: The % column shows the percentage of members that Desvoivres 2 shares with each listed object.

Visualization

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