HXHWL 20

0.50 UTI

0.62

C_N

1.0

C_dens

0.75

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 73

Core radius and density 0.9 [pc], 5.5 [pc^-2]

C3 classification AB

C_N 0.62 Moderately populated
C_dens 1.0 Very dense
C_C3 0.75 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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HXHWL 20 is a moderately populated, very dense object of high C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the age and metallicity parameters (see Parameters). It is rarely studied in the literature.

Note: This object shares a moderate percentage of members with a later reported entry. See table with shared members information.

Relatively close Moderate extinction Near-solar metallicity Young

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 HXHWL 20 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–	193.312	-63.75	0.65	-6.307	-1.532	-13.34
Hunt & Reffert	2024	193.288	-63.75	0.646	-6.319	-1.532	-11.561
Cavallo et al.	2024	193.293	-63.733	0.651	–	–	–
Hunt & Reffert	2023	193.288	-63.75	0.646	-6.319	-1.532	-11.561
He et al.	2021	193.327	-63.723	0.63	-6.34	-1.58	–

💡 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–	1.39	1.925	1.69	77	-0.381	389	–	–
Hunt & Reffert	2024	1.46	1.79	1.69	67	–	389⁽¹⁾	–	–
Cavallo et al.	2024	0.94	2.06	–	407	-0.960	–	–	–
Hunt & Reffert	2023	1.46	1.79	1.69	67	–	–	–	–
He et al.	2021	1.32	2.15	–	87	0.198	–	–	–

(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 14142	47.9	193.27	-63.73	0.66	-6.35	-1.52	-11.49	0.03

💡 Note: The % column shows the percentage of members that HXHWL 20 shares with each listed object.

Visualization

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