COIN-Gaia 16

(COIN 16)

0.63 UTI

0.51

C_N

1.0

C_dens

0.75

C_C3

0.45

C_lit

1.0

C_dup

N₅₀ (P>50% members) 52

Stellar density (N₅₀/rad) 14.7 [N/pc²]

C3 classification AB

C_N 0.51 Moderately populated
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 0.45 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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COIN-Gaia 16 is a moderately populated, very dense object of high C3 quality. Its parallax locates it at a relatively close distance, near the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, very young cluster, but with a large variance across recent sources for the absorption and metallicity parameters (see Parameters). It is poorly studied in the literature.

Relatively close Low extinction Near-solar metallicity Very young

Liu et al. (2025)
Classified as primordial binary cluster 41 along with HSC_1323.

Palma et al. (2025)
Part of multiple system G112, along with HSC_1321 and HSC_1323.

Almeida et al. (2025)
Mass determination: intermediate fit. Isochrone match: good fit.

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Piecka & Paunzen (2021)
Belongs cluster aggregate 'to' Agg15 along with COIN-Gaia 17.

Data

🔍 Search references for COIN-Gaia 16 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–	80.173	37.44	0.619	1.191	-3.828	-3.937
Li et al.	2025	80.179	37.438	0.622	1.262	-3.749	–
Almeida et al.	2025	80.172	37.421	–	–	–	–
Zhang et al.	2024	80.17	37.445	–	–	–	–
Hunt & Reffert	2024	80.17	37.445	0.61	1.18	-3.829	25.392
Celli et al.	2024	80.179	37.438	–	–	–	–
Cavallo et al.	2024	80.17	37.433	0.61	–	–	–
Hunt & Reffert	2023	80.17	37.445	0.61	1.18	-3.829	25.392
Dias et al.	2021	80.172	37.421	0.631	1.309	-3.761	–
Cantat-Gaudin et al.	2020	80.179	37.438	0.622	1.262	-3.749	–
Cantat-Gaudin & Anders	2020	80.179	37.438	0.622	1.262	-3.749	–
Monteiro & Dias	2019	80.179	37.438	–	–	–	3.14
Cantat-Gaudin et al.	2019	80.179	37.438	0.62	1.26	-3.74	–

💡 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–	1.55	0.92	0.43	18	-0.203	177	–	–
Liu et al.	2025	2.44	0.32	–	12	–	–	–	–
Li et al.	2025	1.43	0.92	–	17	-0.203	–	–	–
Almeida et al.	2025	1.55	1.07	–	18	–	177	–	–
Zhang et al.	2024	–	–	–	–	-0.272⁽¹⁾	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	187⁽¹⁾	–	–
Celli et al.	2024	–	–	–	26	–	135	–	–
Cavallo et al.	2024	1.51	1.08	–	9	-0.460	–	–	–
Hunt & Reffert	2023	1.55	0.74	0.43	12	–	–	–	–
Dias et al.	2021	1.55	1.07	–	18	-0.046	–	–	–
Cantat-Gaudin et al.	2020	1.53	0.57	–	26	–	–	–	–
Kounkel et al.	2020	1.82	1.25	–	36	–	–	–	–
Cantat-Gaudin & Anders	2020	1.54	–	–	–	–	–	–	–
Monteiro & Dias	2019	1.90	0.80	–	16	0.022	–	–	–
Cantat-Gaudin et al.	2019	1.53	–	–	–	–	–	–	–

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

Visualization

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