HXHWL 37

0.24 UTI

0.28

C_N

0.3

C_dens

0.5

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 28

Core radius and density 1.4 [pc], 1.5 [pc^-2]

C3 classification BB

C_N 0.28 Poorly populated
C_dens 0.3 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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HXHWL 37 is a poorly populated, loose object of intermediate C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by moderate extinction. It is catalogued as a metal-poor, intermediate-age cluster, but with a large variance across recent sources for the distance, age, and metallicity parameters (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.

⚠️ 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 Metal-poor Intermediate age

Cavallo et al. (2024)
Wood sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.99 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.99 (50th percentile).

Data

🔍 Search references for HXHWL 37 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–	277.877	-11.495	0.916	-0.016	-3.093	19.004
Hunt & Reffert	2024	277.94	-11.46	0.893	-0.012	-3.076	23.337
Cavallo et al.	2024	277.902	-11.491	0.906	–	–	–
Hunt & Reffert	2023	277.94	-11.46	0.893	-0.012	-3.076	23.337
He et al.	2021	277.881	-11.485	0.92	-0.06	-3.05	–

💡 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–	1.06	1.89	1.645	174	-0.745	191	–	–
Hunt & Reffert	2024	1.06	1.89	1.64	174	–	191⁽¹⁾	–	–
Cavallo et al.	2024	3.30	2.23	–	166	-1.670	–	–	–
Hunt & Reffert	2023	1.06	1.89	1.65	174	–	–	–	–
He et al.	2021	0.95	1.77	–	661	0.180	–	–	–

(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 14401	100.0	277.87	-11.51	0.92	-0.01	-3.1	23.66	0.08

💡 Note: The % column shows the percentage of members that HXHWL 37 shares with each listed object.

Visualization

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