HSC 1940

0.01 UTI

0.0

C_N

0.06

C_dens

0.12

C_C3

0.0

C_lit

0.32

C_dup

N₅₀ (P>50% members) 18

Stellar density (N₅₀/rad) 0.3 [N/pc²]

C3 classification DC

C_N 0.0 Sparse
C_dens 0.06 Very loose
C_C3 0.12 Very low quality
C_lit 0.0 Rarely studied
C_dup 0.32 Possibly duplicate

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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HSC 1940 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by low extinction. It is catalogued as an intermediate-age cluster (see Parameters). It was recently reported in the literature.

⚠️ Warning: This is possibly a duplicate object, which shares a significant percentage of members with at least one previously reported entry. See table with shared members information.

Relatively close Low extinction Intermediate age

Palma et al. (2025)
Classified as genetic pair P222, along with HSC_1932.

Data

🔍 Search references for HSC 1940 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–	118.906	-24.5	0.554	-1.559	1.089	20.523
Hunt & Reffert	2024	118.966	-24.635	0.545	-1.532	1.118	–
Hunt & Reffert	2023	118.966	-24.635	0.545	-1.532	1.118	–

💡 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–	1.74	0.57	0.79	196	–	106	–	–
Hunt & Reffert	2024	–	–	–	–	–	106⁽¹⁾	–	–
Hunt & Reffert	2023	1.74	0.57	0.79	196	–	–	–	–

(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 2174	68.0	118.88	-24.33	0.59	-1.52	1.08	26.93	0.11

💡 Note: The % column shows the percentage of members that HSC 1940 shares with each listed object.

Visualization

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