HSC 2842

0.18 UTI

0.33

C_N

0.23

C_dens

0.25

C_C3

0.03

C_lit

1.0

C_dup

N_m (P>50%) 33

Core radius and density 1.2 [pc], 1.2 [pc^-2]

C3 classification DB

C_N 0.33 Poorly populated
C_dens 0.23 Very loose
C_C3 0.25 Low 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 2842 is a poorly populated, very loose object of low C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a metal-poor, young cluster (see Parameters). It was recently reported in the literature.

Note: This object shares a large percentage of members with a later reported entry. See table with shared members information.

⚠️ 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 Metal-poor Young

Cavallo et al. (2024)
Wood 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 2842 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–	253.577	-42.783	0.479	-0.191	-1.242	-40.588
Hunt & Reffert	2024	253.584	-42.788	0.47	-0.184	-1.251	-43.534
Cavallo et al.	2024	253.563	-42.79	0.467	–	–	–
Hunt & Reffert	2023	253.584	-42.788	0.47	-0.184	-1.251	-43.534

💡 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–	2.01	2.97	2.61	45	-0.740	440	–	–
Hunt & Reffert	2024	2.01	2.97	2.61	45	–	440⁽¹⁾	–	–
Cavallo et al.	2024	4.39	2.58	–	117	-0.740	–	–	–
Hunt & Reffert	2023	2.01	2.97	2.61	45	–	–	–	–

(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 3614	93.9	253.57	-42.79	0.48	-0.21	-1.24	-46.56	0.01

💡 Note: The % column shows the percentage of members that HSC 2842 shares with each listed object.

Visualization

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