Wit 2

(MWSC 1067)

0.54 UTI

0.72

C_N

0.47

C_dens

0.75

C_C3

0.38

C_lit

1.0

C_dup

N_m (P>50%) 93

Core radius and density 1.7 [pc], 2.3 [pc^-2]

C3 classification AB

C_N 0.72 Moderately populated
C_dens 0.47 Loose
C_C3 0.75 High quality
C_lit 0.38 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Wit 2 is a moderately populated, loose object of high C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate extinction. It is catalogued as a metal-poor, intermediate-age 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 2 later reported entries. See table with shared members information.

Relatively close Moderate extinction Metal-poor Intermediate age

Palma et al. (2025)
Classified as tidal capture (resonant trapping pair) P17, along with CWNU_302.

Cavallo et al. (2024)
Silver sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD classes: 0.43 (50th percentile), false positive? (human-assigned).

Hunt & Reffert (2023)
Classified as open cluster. CMD classes: 0.43 (50th percentile), false positive? (human-assigned).

Data

🔍 Search references for Wit 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–	105.353	-3.128	0.434	-1.229	0.566	56.53
Hunt & Reffert	2024	105.352	-3.098	0.415	-1.215	0.542	52.628
Cavallo et al.	2024	105.349	-3.127	0.421	–	–	–
Hunt & Reffert	2023	105.352	-3.098	0.415	-1.215	0.542	52.628
Just et al.	2023	105.334	-3.116	–	–	–	–
Sampedro et al.	2017	105.362	-3.118	–	2.21	4.96	–
Dias et al.	2016	105.362	-3.118	–	-5.15	0.1	–
Kharchenko et al.	2016	105.334	-3.116	–	–	–	–
Kharchenko et al.	2013	105.34	-3.117	–	-5.15	0.1	22.9

💡 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–	2.46	1.175	1.98	610	-0.550	611	–	–
Hunt & Reffert	2024	2.09	0.66	1.98	81	–	420⁽¹⁾	–	–
Cavallo et al.	2024	1.85	0.97	–	18	-0.550	–	–	–
Hunt & Reffert	2023	2.09	0.66	1.98	81	–	–	–	–
Just et al.	2023	–	–	–	610	–	802	–	–
Dias et al.	2016	2.83	1.38	–	610	–	–	–	–
Kharchenko et al.	2016	2.83	1.38	–	610	–	–	–	–
Kharchenko et al.	2013	2.83	1.38	–	610	–	–	–	–

(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 2501	61.3	105.36	-3.14	0.45	-1.22	0.6	56.53	0.02
Ferrero 10	21.5	105.19	-3.05	0.44	-1.29	0.64	83.93	0.14

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

Visualization

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