HSC 264

0.28 UTI

0.0

C_N

0.64

C_dens

0.75

C_C3

0.0

C_lit

1.0

C_dup

N_m (P>50%) 20

Core radius and density 0.9 [pc], 3.2 [pc^-2]

C3 classification AB

C_N 0.0 Sparse
C_dens 0.64 Moderately dense
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 264 is a sparse, moderately dense object of high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by very high extinction. It is catalogued as a massive, 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.

Distant Very high extinction Massive Young

Hunt & Reffert (2024)
Classified as open cluster. CMD classes: 0.98 (50th percentile), true positive? (human-assigned).

Hunt & Reffert (2023)
Classified as open cluster. CMD classes: 0.98 (50th percentile), true positive? (human-assigned).

Data

🔍 Search references for HSC 264 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–	280.586	-5.785	0.201	-1.189	-2.848	50.595
Hunt & Reffert	2024	280.583	-5.784	0.194	-1.194	-2.805	50.345
Hunt & Reffert	2023	280.583	-5.784	0.194	-1.194	-2.805	50.345

💡 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–	4.25	5.76	1.77	31	–	1290	–	–
Hunt & Reffert	2024	4.25	5.76	1.77	31	–	1290⁽¹⁾	–	–
Hunt & Reffert	2023	4.25	5.76	1.77	31	–	–	–	–

(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 3646	92.0	280.59	-5.78	0.21	-1.18	-2.84	49.8	0.16

💡 Note: The % column shows the percentage of members that HSC 264 shares with each listed object.

Visualization

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