HSC 1019

0.20 UTI

0.0

C_N

0.23

C_dens

0.75

C_C3

0.0

C_lit

1.0

C_dup

C3 classification AB

Number of members (P>50%) 20

Radius (P>50% members) 4.6 [arcmin]

C_N 0.0 Sparse
C_dens 0.23 Very loose
C_C3 0.75 High quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

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

Overview

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HSC 1019 is a sparse, very loose object of high C3 quality. Its parallax locates it at a moderate distance, near the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, 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.

⚠️ 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 Moderate extinction Near-solar metallicity Young

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for HSC 1019 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	–	21.926	62.787	0.322	-1.612	-0.26	–
Hunt & Reffert	2024	21.905	62.711	0.324	-1.612	-0.245	–
Cavallo et al.	2024	21.913	62.768	0.324	–	–	–
Hunt & Reffert	2023	21.905	62.711	0.324	-1.612	-0.245	–

💡 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
Hunt & Reffert	2024	–	–	–	–	–	304*	–	–
Cavallo et al.	2024	3.21	2.27	–	21	0.140	–	–	–
Hunt & Reffert	2023	2.92	2.00	0.59	75	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWNU 3451	100.0	21.87	62.8	0.33	-1.62	-0.28	-39.05	0.18

💡 Note: The % column shows the percentage of members that HSC 1019 shares with each listed object.

Visualization

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