HSC 502

0.02 UTI

0.0

C_N

0.0

C_dens

0.38

C_C3

0.0

C_lit

0.28

C_dup

N_m (P>50%) 19

Core radius and density 10 [pc], 0.02 [pc^-2]

C3 classification CB

C_N 0.0 Sparse
C_dens 0.0 Very loose
C_C3 0.38 Low quality
C_lit 0.0 Rarely studied
C_dup 0.28 Possibly duplicate

📥 Members 📊 Colab 🔬 Bayestar19

MOCA 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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HSC 502 is a sparse, very loose object of low C3 quality. Its parallax locates it at a very large^* distance, well above the mid-plane, affected by high extinction. It is catalogued as a massive, very young cluster (see Parameters). It was recently reported in the literature.

⚠️ Warning: This is possibly a duplicate object, which shares a significant percentage of members with at least one previously reported entry. See table with shared members information.

(*): The parallax distance estimate (~19.92 kpc) differs significantly from the median photometric distance (~13.08 kpc).

Extremely distant High extinction Massive Very young

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.07 (50th percentile).

Hunt & Reffert (2023)
Classified as moving group. CMD class: 0.07 (50th percentile).

Data

🔍 Search references for HSC 502 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–	294.798	26.254	0.05	-2.254	-4.373	–
Hunt & Reffert	2024	294.799	26.263	0.054	-2.27	-4.372	-79.359

💡 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–	13.08	3.85	2.32	14	–	4065	–	–
Hunt & Reffert	2024	13.08	3.85	2.32	14	–	4065⁽¹⁾	–	–

(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 4386	72.0	294.77	26.21	0.06	-2.26	-4.39	–	0.08

💡 Note: The % column shows the percentage of members that HSC 502 shares with each listed object.

Visualization

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