HSC 268

0.25 UTI

0.35

C_N

0.21

C_dens

0.62

C_C3

0.03

C_lit

1.0

C_dup

N_m (P>50%) 35

Core radius and density 2.0 [pc], 1.1 [pc^-2]

C3 classification CA

C_N 0.35 Poorly populated
C_dens 0.21 Very loose
C_C3 0.62 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 268 is a poorly populated, very loose object of intermediate C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by high extinction. It is catalogued as a massive, 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.

Distant High extinction Massive Metal-poor Young

Cavallo et al. (2024)
Silver sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.01 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.01 (50th percentile).

Data

🔍 Search references for HSC 268 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	280.14	-5.324	0.26	-0.221	-1.871	48.887
Hunt & Reffert	2024	280.146	-5.325	0.268	-0.218	-1.88	62.716
Cavallo et al.	2024	280.127	-5.338	0.262	–	–	–
Hunt & Reffert	2023	280.146	-5.325	0.268	-0.218	-1.88	62.716

💡 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–	3.31	4.01	3.08	47	-0.610	1101	–	–
Hunt & Reffert	2024	3.31	4.01	3.08	47	–	1101⁽¹⁾	–	–
Cavallo et al.	2024	2.49	5.54	–	11	-0.610	–	–	–
Hunt & Reffert	2023	3.31	4.01	3.08	47	–	–	–	–

(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 3545	88.6	280.14	-5.32	0.26	-0.23	-1.86	55.41	0.15

💡 Note: The % column shows the percentage of members that HSC 268 shares with each listed object.

Visualization

ℹ️

1 2