HSC 2791

0.11 UTI

0.0

C_N

0.04

C_dens

0.38

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 20

Core radius and density 5.0 [pc], 0.2 [pc^-2]

C3 classification CB

C_N 0.0 Sparse
C_dens 0.04 Very loose
C_C3 0.38 Low quality
C_lit 0.06 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 2791 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate distance, below 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.

Distant High extinction Near-solar metallicity Young

Cavallo et al. (2024)
Silver sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.06 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.06 (50th percentile).

Data

🔍 Search references for HSC 2791 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–	250.589	-47.871	0.246	-2.863	-4.373	-54.524
Hunt & Reffert	2024	250.581	-47.884	0.259	-2.845	-4.347	49.657
Cavallo et al.	2024	250.586	-47.873	0.259	–	–	–
Hunt & Reffert	2023	250.581	-47.884	0.259	-2.845	-4.347	49.657

💡 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–	3.62	4.0	2.1	98	-0.200	385	–	–
Hunt & Reffert	2024	3.62	4.00	2.10	98	–	385⁽¹⁾	–	–
Cavallo et al.	2024	4.70	3.90	–	100	-0.200	–	–	–
Hunt & Reffert	2023	3.62	4.00	2.10	98	–	–	–	–

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

Visualization

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