HSC 538

0.31 UTI

0.26

C_N

0.48

C_dens

0.75

C_C3

0.03

C_lit

1.0

C_dup

N_m (P>50%) 26

Core radius and density 1.4 [pc], 2.4 [pc^-2]

C3 classification BA

C_N 0.26 Poorly populated
C_dens 0.48 Loose
C_C3 0.75 High quality
C_lit 0.03 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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HSC 538 is a poorly populated, loose object of high C3 quality. Its parallax locates it at a large distance, near the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, very young cluster (see Parameters). It was recently reported in the literature.

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

Very distant High extinction Near-solar metallicity Very young

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD classes: 0.09 (50th percentile), true positive? (human-assigned).

Hunt & Reffert (2023)
Classified as open cluster. CMD classes: 0.09 (50th percentile), true positive? (human-assigned).

Data

🔍 Search references for HSC 538 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–	299.841	30.063	0.171	-3.337	-6.03	–
Hunt & Reffert	2024	299.842	30.063	0.177	-3.341	-6.034	–
Cavallo et al.	2024	299.818	30.068	0.179	–	–	–
Hunt & Reffert	2023	299.842	30.063	0.177	-3.341	-6.034	–

💡 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–	5.38	3.21	2.78	14	0.180	707	–	–
Hunt & Reffert	2024	5.38	3.21	2.78	14	–	707⁽¹⁾	–	–
Cavallo et al.	2024	3.58	2.77	–	60	0.180	–	–	–
Hunt & Reffert	2023	5.38	3.21	2.78	14	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 3680	96.2	299.84	30.06	0.17	-3.34	-6.03	–	0.04

💡 Note: The % column shows the percentage of members that HSC 538 shares with each listed object.

Visualization

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