Chupina 1

(MWSC 1578)

0.48 UTI

0.26

C_N

1.0

C_dens

0.62

C_C3

0.25

C_lit

1.0

C_dup

N₅₀ (P>50% members) 26

Stellar density (N₅₀/rad) 6.2 [N/pc²]

C3 classification CA

C_N 0.26 Poorly populated
C_dens 1.0 Very dense
C_C3 0.62 Intermediate quality
C_lit 0.25 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Chupina 1 is a poorly populated, very dense object of intermediate C3 quality. Its parallax locates it at a close^* distance, above the mid-plane, affected by moderate extinction. It is catalogued as a near-solar metallicity, very young cluster (see Parameters). It is poorly studied in the literature, with no articles listed in the last 6 years.

(*): The parallax distance estimate (~0.86 kpc) differs significantly from the median photometric distance (~1.78 kpc).

Note: This object shares a large percentage of members with at least one entry reported in the same catalogue. See table with shared members information.

Relatively close Moderate extinction Near-solar metallicity Very young

Data

🔍 Search references for Chupina 1 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–	132.625	11.904	1.163	-10.993	-2.985	34.591
Donor et al.	2020	132.529	11.945	–	-10.89	-2.77	33.8
Bica et al.	2019	132.526	11.942	–	–	–	–
Dias et al.	2014	132.529	11.945	–	–	–	34.88
Dias et al.	2002	132.529	11.945	–	-8.28	-2.78	34.88

💡 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–	1.78	2.45	–	13	0.000	–	–	–
Donor et al.	2020	–	–	–	–	0.000	–	–	–
Dias et al.	2002	1.78	2.45	–	13	–	–	–	–

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv	UTI
CWWDL 14090	100.0	132.84	11.82	1.15	-10.98	-2.91	33.79	0.0
Melotte 94	100.0	132.85	11.82	1.15	-10.97	-2.91	33.91	1.0

💡 Note: The % column shows the percentage of members that Chupina 1 shares with each listed object.

Visualization

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