HXHWL 65

0.31 UTI

0.35

C_N

0.25

C_dens

0.75

C_C3

0.1

C_lit

1.0

C_dup

N_m (P>50%) 35

Core radius and density 1.4 [pc], 1.3 [pc^-2]

C3 classification AB

C_N 0.35 Poorly populated
C_dens 0.25 Loose
C_C3 0.75 High quality
C_lit 0.1 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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HXHWL 65 is a poorly populated, loose object of high C3 quality. Its parallax locates it at a close distance, above the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the absorption parameter (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.

Relatively close Low extinction Near-solar metallicity Intermediate age

Liu et al. (2025)
Classified as tidal capture (resonant trapping binary) 259 along with Ruprecht_53.

Palma et al. (2025)
Classified as optical pair P538, along with Ruprecht_53.

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.98 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.98 (50th percentile).

Data

🔍 Search references for HXHWL 65 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–	122.413	-27.151	1.006	-3.955	2.026	8.093
Hunt & Reffert	2024	122.424	-27.136	0.992	-3.942	2.038	7.18
Cavallo et al.	2024	122.409	-27.131	0.997	–	–	–
Hunt & Reffert	2023	122.424	-27.136	0.992	-3.942	2.038	7.18
He et al.	2021	122.377	-27.159	0.99	-3.93	2.0	–

💡 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–	1.0	0.08	0.19	372	0.312	77	–	–
Liu et al.	2025	1.24	0.13	–	204	–	–	–	–
Hunt & Reffert	2024	0.92	0.08	0.19	477	–	77⁽¹⁾	–	–
Cavallo et al.	2024	1.00	0.00	–	372	0.360	–	–	–
Hunt & Reffert	2023	0.92	0.08	0.19	478	–	–	–	–
He et al.	2021	1.05	0.25	–	158	0.265	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWWDL 14423	94.3	122.41	-27.15	1.01	-3.96	2.03	8.57	0.01

💡 Note: The % column shows the percentage of members that HXHWL 65 shares with each listed object.

Visualization

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