HSC 1755

0.20 UTI

0.25

C_N

0.5

C_dens

0.25

C_C3

0.0

C_lit

1.0

C_dup

N_m (P>50%) 25

Core radius and density 1.0 [pc], 2.5 [pc^-2]

C3 classification DB

C_N 0.25 Poorly populated
C_dens 0.5 Moderately dense
C_C3 0.25 Low 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

ℹ️

HSC 1755 is a poorly populated, moderately dense object of low C3 quality. Its parallax locates it at a close distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the age parameter (see Parameters). It was recently reported in the literature.

⚠️ 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.

Close Low extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as moving group. CMD class: 0.20 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.20 (50th percentile).

Data

🔍 Search references for HSC 1755 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	104.768	-10.411	1.99	-5.793	3.869	43.266
Cavallo et al.	2024	104.62	-10.297	1.98	–	–	–
Hunt & Reffert	2023	104.782	-10.439	1.983	-5.727	3.82	40.01

💡 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–	0.505	0.13	0.33	870	0.390	–	–	–
Cavallo et al.	2024	0.53	0.18	–	83	0.390	–	–	–
Hunt & Reffert	2023	0.48	0.08	0.33	1656	–	–	–	–

Visualization

ℹ️

1 2