HSC 1881

0.11 UTI

0.0

C_N

0.15

C_dens

0.38

C_C3

0.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 23

Stellar density (N₅₀/rad) 0.8 [N/pc²]

C3 classification CB

C_N 0.0 Sparse
C_dens 0.15 Very 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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HSC 1881 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, young cluster (see Parameters). It was recently reported in the literature.

⚠️ 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 Near-solar metallicity Young

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for HSC 1881 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–	112.284	-22.023	0.311	-1.906	1.578	–
Hunt & Reffert	2024	112.273	-22.032	0.31	-1.905	1.593	–
Cavallo et al.	2024	112.289	-22.022	0.31	–	–	–
Hunt & Reffert	2023	112.273	-22.032	0.31	-1.905	1.593	–

💡 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–	2.845	1.545	0.77	28	-0.050	113	–	–
Hunt & Reffert	2024	–	–	–	–	–	113⁽¹⁾	–	–
Cavallo et al.	2024	2.77	1.88	–	26	-0.050	–	–	–
Hunt & Reffert	2023	2.92	1.21	0.77	30	–	–	–	–

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

Visualization

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