HSC 1935

0.22 UTI

0.25

C_N

0.14

C_dens

0.62

C_C3

0.03

C_lit

1.0

C_dup

N_m (P>50%) 25

Core radius and density 2.8 [pc], 0.7 [pc^-2]

C3 classification AC

C_N 0.25 Poorly populated
C_dens 0.14 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

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HSC 1935 is a poorly populated, very loose object of intermediate C3 quality. Its parallax locates it at a large 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.

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 Low extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.99 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.99 (50th percentile).

Data

🔍 Search references for HSC 1935 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–	116.551	-25.598	0.189	-1.68	3.309	–
Hunt & Reffert	2024	116.554	-25.602	0.191	-1.722	3.318	–
Cavallo et al.	2024	116.553	-25.607	0.193	–	–	–
Hunt & Reffert	2023	116.554	-25.602	0.191	-1.722	3.318	–

💡 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–	4.65	0.73	0.49	726	-0.190	144	–	–
Hunt & Reffert	2024	4.65	0.73	0.49	727	–	144⁽¹⁾	–	–
Cavallo et al.	2024	5.04	1.60	–	158	-0.190	–	–	–
Hunt & Reffert	2023	4.65	0.73	0.49	726	–	–	–	–

(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 4033	100.0	116.54	-25.59	0.18	-1.67	3.29	95.04	0.12

💡 Note: The % column shows the percentage of members that HSC 1935 shares with each listed object.

Visualization

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