CWNU 2575

0.21 UTI

0.39

C_N

0.04

C_dens

0.5

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 39

Core radius and density 6.4 [pc], 0.2 [pc^-2]

C3 classification BB

C_N 0.39 Poorly populated
C_dens 0.04 Very loose
C_C3 0.5 Intermediate 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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CWNU 2575 is a poorly populated, very loose object of intermediate C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster (see Parameters). It was recently reported in the literature.

⚠️ 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 G47, along with CWNU_1962 and CWNU_2736.

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Data

🔍 Search references for CWNU 2575 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–	108.933	-10.597	0.329	-1.368	1.443	–
Hunt & Reffert	2024	109.019	-10.614	0.32	-1.37	1.451	–
Cavallo et al.	2024	108.905	-10.6	0.321	–	–	–
Hunt & Reffert	2023	109.019	-10.614	0.32	-1.37	1.451	–
He et al.	2023	108.894	-10.598	0.339	-1.377	1.444	123.37

💡 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–	2.71	1.81	0.7	31	-0.040	300	–	–
Hunt & Reffert	2024	2.79	1.81	0.70	31	–	300⁽¹⁾	–	–
Cavallo et al.	2024	2.41	1.81	–	35	-0.040	–	–	–
Hunt & Reffert	2023	2.79	1.81	0.70	31	–	–	–	–
He et al.	2023	2.63	2.00	–	25	–	–	–	–

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

Visualization

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