HXHWL 39

(H21OC 39)

0.13 UTI

0.0

C_N

0.26

C_dens

0.38

C_C3

0.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 23

Stellar density (N₅₀/rad) 1.3 [N/pc²]

C3 classification CB

C_N 0.0 Sparse
C_dens 0.26 Loose
C_C3 0.38 Low quality
C_lit 0.0 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 39 is a sparse, loose object of low C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster (see Parameters). It is rarely studied in the literature.

Note: This object shares a large percentage of members with 2 later reported entries. 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.

Close Moderate extinction Near-solar metallicity Young

Data

🔍 Search references for HXHWL 39 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–	9.185	68.831	0.984	-1.515	-0.625	-16.4
He et al.	2022	9.274	68.834	0.97	-1.517	-0.641	–
He et al.	2021	9.186	68.835	0.96	-1.53	-0.57	–

💡 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–	0.79	2.265	–	58	0.051	–	–	–
He et al.	2022	–	2.25	–	28	–	–	–	–
He et al.	2021	0.79	2.28	–	87	0.051	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWWDL 14487	92.0	9.19	68.83	0.99	-1.51	-0.63	-16.4	0.01
Theia 2175	80.0	8.72	68.84	0.98	-1.53	-0.65	-18.21	0.04

💡 Note: The % column shows the percentage of members that HXHWL 39 shares with each listed object.

Visualization

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