CWNU 1897

0.40 UTI

0.3

C_N

0.72

C_dens

0.38

C_C3

0.3

C_lit

1.0

C_dup

N₅₀ (P>50% members) 30

Stellar density (N₅₀/rad) 3.6 [N/pc²]

C3 classification CB

C_N 0.3 Poorly populated
C_dens 0.72 Moderately dense
C_C3 0.38 Low quality
C_lit 0.3 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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CWNU 1897 is a poorly populated, moderately dense object of low C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, old cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It was recently reported in the literature.

Relatively close Low extinction Near-solar metallicity Old

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for CWNU 1897 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–	123.313	-27.612	0.372	-3.737	2.529	51.632
Hu & Soubiran	2025	123.308	-27.615	–	–	–	–
Hunt & Reffert	2024	123.305	-27.606	0.341	-3.747	2.559	49.442
Cavallo et al.	2024	123.308	-27.615	0.337	–	–	–
Hunt & Reffert	2023	123.305	-27.606	0.341	-3.747	2.559	49.442
He et al.	2023	123.338	-27.645	0.388	-3.736	2.518	41.49

💡 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–	2.62	0.4	1.04	1413	-0.455	236	–	–
Hu & Soubiran	2025	–	–	–	–	-0.200⁽⁵⁾	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	236⁽¹⁾	–	–
Cavallo et al.	2024	2.23	0.77	–	1413	-0.710	–	–	–
Hunt & Reffert	2023	2.62	0.14	1.04	1578	–	–	–	–
He et al.	2023	2.75	0.40	–	708	–	–	–	–

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

Visualization

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