HSC 2084

0.32 UTI

0.56

C_N

0.27

C_dens

0.75

C_C3

0.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 62

Stellar density (N₅₀/rad) 1.3 [N/pc²]

C3 classification AB

C_N 0.56 Moderately populated
C_dens 0.27 Loose
C_C3 0.75 High 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 2084 is a moderately populated, loose object of high C3 quality. Its parallax locates it at a very large^* distance, well below the mid-plane, affected by moderate extinction. It is catalogued as a massive, very metal-poor, old cluster, but with a large variance across recent sources for the age parameter (see Parameters). It was recently reported in the literature.

(*): The parallax distance estimate (~12.99 kpc) differs significantly from the median photometric distance (~8.88 kpc).

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

Very distant Moderate extinction Massive Very metal-poor Old

Cavallo et al. (2024)
Bronze sample.

Data

🔍 Search references for HSC 2084 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–	120.897	-43.788	0.077	-1.345	2.5	108.946
Hunt & Reffert	2024	120.904	-43.797	0.064	-1.351	2.452	116.841
Cavallo et al.	2024	120.908	-43.782	0.067	–	–	–
Hunt & Reffert	2023	120.904	-43.797	0.064	-1.351	2.452	116.841

💡 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–	8.88	1.745	2.17	2134	-1.090	1494	–	–
Hunt & Reffert	2024	–	–	–	–	–	1494⁽¹⁾	–	–
Cavallo et al.	2024	5.08	1.75	–	4074	-1.090	–	–	–
Hunt & Reffert	2023	12.68	1.74	2.17	195	–	–	–	–

(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 3249	77.4	120.9	-43.79	0.08	-1.35	2.52	108.95	0.01

💡 Note: The % column shows the percentage of members that HSC 2084 shares with each listed object.

Visualization

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