HSC 602

0.18 UTI

0.0

C_N

0.31

C_dens

0.5

C_C3

0.03

C_lit

1.0

C_dup

N_m (P>50%) 23

Core radius and density 1.2 [pc], 1.6 [pc^-2]

C3 classification BB

C_N 0.0 Sparse
C_dens 0.31 Loose
C_C3 0.5 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

ℹ️

HSC 602 is a sparse, loose object of intermediate C3 quality. Its parallax locates it at a moderate distance, above the mid-plane, affected by high extinction. It is catalogued as a metal-rich, very young cluster, but with a large variance across recent sources for the age parameter (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.

Distant High extinction Metal-rich Very young

Cavallo et al. (2024)
Silver sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.98 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.98 (50th percentile).

Data

🔍 Search references for HSC 602 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	304.959	38.702	0.241	-3.897	-6.08	–
Hunt & Reffert	2024	304.953	38.7	0.255	-3.882	-6.077	–
Cavallo et al.	2024	304.954	38.71	0.252	–	–	–
Hunt & Reffert	2023	304.953	38.7	0.255	-3.882	-6.077	–

💡 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–	3.86	4.32	1.91	19	0.650	654	–	–
Hunt & Reffert	2024	3.86	4.32	1.91	19	–	654⁽¹⁾	–	–
Cavallo et al.	2024	3.61	3.65	–	117	0.650	–	–	–
Hunt & Reffert	2023	3.87	4.32	1.91	19	–	–	–	–

(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 3447	92.0	304.96	38.7	0.24	-3.9	-6.09	–	0.02

💡 Note: The % column shows the percentage of members that HSC 602 shares with each listed object.

Visualization

ℹ️

1 2