HSC 1631

0.09 UTI

0.0

C_N

0.1

C_dens

0.12

C_C3

0.25

C_lit

0.6

C_dup

C3 classification DC

Number of members (P>50%) 23

Radius (P>50% members) 9.6 [arcmin]

C_N 0.0 Sparse
C_dens 0.1 Very loose
C_C3 0.12 Very low quality
C_lit 0.25 Poorly studied
C_dup 0.6 Likely unique

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

ℹ️

HSC 1631 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It was recently reported in the literature.

Note: This is likely a unique object, which shares a moderate percentage of members with at least one previously reported entry. See table with shared members information.

Relatively close Moderate extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for HSC 1631 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	–	96.982	4.105	0.416	0.393	-2.204	40.599
Zhang et al.	2024	97.046	4.103	–	–	–	–
Hunt & Reffert	2024	97.046	4.103	0.424	0.379	-2.194	40.647
Cavallo et al.	2024	96.81	4.203	0.425	–	–	–
Hunt & Reffert	2023	97.046	4.103	0.424	0.379	-2.194	40.647

💡 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]	Bfr	BSS
Zhang et al.	2024	–	–	–	–	-0.212*	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	117*	–	–
Cavallo et al.	2024	2.15	1.45	–	407	0.540	–	–	–
Hunt & Reffert	2023	2.11	1.64	1.15	109	–	–	–	–

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 1999	40.0	96.73	4.24	0.42	0.38	-2.22	29.25	0.06

💡 Note: The % column shows the percentage of members that HSC 1631 shares with each listed object.

Visualization

ℹ️

1 2