HSC 1902

0.31 UTI

0.36

C_N

0.42

C_dens

0.62

C_C3

0.06

C_lit

1.0

C_dup

N_m (P>50%) 36

Core radius and density 0.9 [pc], 2.1 [pc^-2]

C3 classification AC

C_N 0.36 Poorly populated
C_dens 0.42 Loose
C_C3 0.62 Intermediate quality
C_lit 0.06 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 1902 is a poorly populated, loose object of intermediate 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, young cluster (see Parameters). It was recently reported in the literature.

Close Low extinction Near-solar metallicity Young

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.98 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.98 (50th percentile).

Data

🔍 Search references for HSC 1902 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–	109.803	-24.921	1.316	-3.159	4.822	40.16
Swiggum et al.	2024	109.823	-24.978	1.315	-3.177	4.838	40.372
Hunt & Reffert	2024	109.823	-24.978	1.315	-3.177	4.838	37.682
Cavallo et al.	2024	109.687	-24.553	1.321	–	–	–
Hunt & Reffert	2023	109.823	-24.978	1.315	-3.177	4.838	37.682

💡 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–	0.73	0.2	0.71	31	0.050	84	–	–
Swiggum et al.	2024	0.73	–	–	31	–	125	–	–
Hunt & Reffert	2024	0.73	0.20	0.71	31	–	44⁽¹⁾	–	–
Cavallo et al.	2024	0.80	0.39	–	17	0.050	–	–	–
Hunt & Reffert	2023	0.73	0.20	0.71	31	–	–	–	–

(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.

Visualization

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