HSC 2974

0.21 UTI

0.0

C_N

0.38

C_dens

0.62

C_C3

0.03

C_lit

1.0

C_dup

N_m (P>50%) 24

Core radius and density 0.9 [pc], 1.9 [pc^-2]

C3 classification CA

C_N 0.0 Sparse
C_dens 0.38 Loose
C_C3 0.62 Intermediate 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 2974 is a sparse, loose object of intermediate C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by high 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 High extinction Near-solar metallicity Young

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.76 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.76 (50th percentile).

Data

🔍 Search references for HSC 2974 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–	266.502	-31.025	0.503	1.091	-0.829	-32.831
Hunt & Reffert	2024	266.5	-31.028	0.515	1.121	-0.83	–
Cavallo et al.	2024	266.501	-31.016	0.514	–	–	–
Hunt & Reffert	2023	266.5	-31.028	0.515	1.121	-0.83	–

💡 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–	1.85	3.03	2.22	63	-0.460	409	–	–
Hunt & Reffert	2024	1.85	3.03	2.22	63	–	409⁽¹⁾	–	–
Cavallo et al.	2024	1.40	3.45	–	15	-0.460	–	–	–
Hunt & Reffert	2023	1.85	3.03	2.22	63	–	–	–	–

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

Visualization

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