CWNU 2870

0.43 UTI

0.76

C_N

0.28

C_dens

1.0

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 119

Core radius and density 3.4 [pc], 1.4 [pc^-2]

C3 classification AA

C_N 0.76 Rich
C_dens 0.28 Loose
C_C3 1.0 Very high 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 2870 is a rich, loose object of very high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by high extinction. It is catalogued as a massive, near-solar metallicity, young cluster, but with a large variance across recent sources for the age parameter (see Parameters). It was recently reported in the literature.

Distant High extinction Massive Near-solar metallicity Young

Cavallo et al. (2024)
Wood sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.02 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.02 (50th percentile).

Data

🔍 Search references for CWNU 2870 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–	260.265	-38.057	0.264	-1.016	-2.211	2.015
Hunt & Reffert	2024	260.256	-38.037	0.276	-0.989	-2.217	6.545
Cavallo et al.	2024	260.257	-38.088	0.275	–	–	–
Hunt & Reffert	2023	260.256	-38.037	0.276	-0.989	-2.217	6.545
He et al.	2023	260.274	-38.056	0.274	-1.036	-2.211	-44.83

💡 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–	3.515	4.635	3.17	26	0.150	2596	–	–
Hunt & Reffert	2024	3.40	4.41	3.17	34	–	2596⁽¹⁾	–	–
Cavallo et al.	2024	3.63	4.86	–	19	0.150	–	–	–
Hunt & Reffert	2023	3.40	4.41	3.17	34	–	–	–	–
He et al.	2023	4.37	6.65	–	2	–	–	–	–

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

Visualization

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