Theia 387

0.59 UTI

0.75

C_N

0.83

C_dens

0.75

C_C3

0.3

C_lit

1.0

C_dup

N₅₀ (P>50% members) 105

Stellar density (N₅₀/rad) 4.2 [N/pc²]

C3 classification AB

C_N 0.75 Rich
C_dens 0.83 Dense
C_C3 0.75 High quality
C_lit 0.3 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

MOCA 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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Theia 387 is a rich, dense object of high 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 is poorly studied in the literature.

Close Low extinction Near-solar metallicity Young

Palma et al. (2025)
Classified as optical pair P176, along with Theia_943.

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for Theia 387 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–	79.246	37.256	1.868	-0.556	-9.224	5.657
Zhang et al.	2024	79.153	37.199	–	–	–	–
Hunt & Reffert	2024	79.153	37.199	1.848	-0.474	-9.146	5.615
Cavallo et al.	2024	79.251	37.278	1.853	–	–	–
Hunt & Reffert	2023	79.153	37.199	1.848	-0.474	-9.146	5.615
He et al.	2022	79.149	37.343	1.871	-0.55	-9.243	–

💡 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–	0.53	0.85	0.88	63	-0.071	109	–	–
Zhang et al.	2024	–	–	–	–	-0.063⁽¹⁾	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	109⁽¹⁾	–	–
Cavallo et al.	2024	0.55	0.87	–	59	-0.080	–	–	–
Hunt & Reffert	2023	0.51	0.49	0.88	110	–	–	–	–
He et al.	2022	–	0.85	–	63	–	–	–	–

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

Visualization

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