HSC 2027

0.26 UTI

0.0

C_N

0.29

C_dens

0.5

C_C3

0.25

C_lit

1.0

C_dup

N₅₀ (P>50% members) 22

Stellar density (N₅₀/rad) 1.4 [N/pc²]

C3 classification BB

C_N 0.0 Sparse
C_dens 0.29 Loose
C_C3 0.5 Intermediate quality
C_lit 0.25 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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HSC 2027 is a sparse, loose object of intermediate C3 quality. Its parallax locates it at a large distance, above the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age 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.

Distant Low extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for HSC 2027 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–	127.451	-32.265	0.172	-2.135	2.547	96.751
Hu & Soubiran	2025	127.438	-32.264	–	–	–	–
Hunt & Reffert	2024	127.454	-32.263	0.162	-2.136	2.584	101.49
Cavallo et al.	2024	127.438	-32.264	0.16	–	–	–
Hunt & Reffert	2023	127.454	-32.263	0.162	-2.136	2.584	101.49

💡 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–	4.535	0.705	2.03	580	-0.195	462	–	–
Hu & Soubiran	2025	–	–	–	–	-0.180⁽⁵⁾	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	462⁽¹⁾	–	–
Cavallo et al.	2024	3.75	0.73	–	603	-0.210	–	–	–
Hunt & Reffert	2023	5.32	0.68	2.03	557	–	–	–	–

(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 4758	96.0	127.45	-32.26	0.17	-2.14	2.54	90.11	0.03

💡 Note: The % column shows the percentage of members that HSC 2027 shares with each listed object.

Visualization

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