HSC 2774

0.06 UTI

0.0

C_N

0.04

C_dens

0.25

C_C3

0.0

C_lit

1.0

C_dup

N_m (P>50%) 19

Core radius and density 2.9 [pc], 0.2 [pc^-2]

C3 classification CC

C_N 0.0 Sparse
C_dens 0.04 Very loose
C_C3 0.25 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 2774 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by moderate extinction. It is catalogued as an old 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 Old

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.80 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.80 (50th percentile).

Data

🔍 Search references for HSC 2774 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–	241.193	-45.568	0.393	0.867	-2.617	-14.289
Hunt & Reffert	2024	241.186	-45.523	0.404	0.914	-2.609	–
Hunt & Reffert	2023	241.186	-45.523	0.404	0.914	-2.609	–

💡 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–	2.38	2.22	1.37	1304	–	339	–	–
Hunt & Reffert	2024	2.38	2.22	1.37	1305	–	339⁽¹⁾	–	–
Hunt & Reffert	2023	2.38	2.22	1.37	1303	–	–	–	–

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

Visualization

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