Alessi Teutsch 12

(ASCC 86; AT 12; Alessi J1701.7-5857; MWSC 2513)

0.85 UTI

0.52

C_N

1.0

C_dens

0.75

C_C3

1.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 53

Stellar density (N₅₀/rad) 5.7 [N/pc²]

C3 classification AB

C_N 0.52 Moderately populated
C_dens 1.0 Very dense
C_C3 0.75 High quality
C_lit 1.0 Very well-studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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Alessi Teutsch 12 is a moderately populated, very dense object of high C3 quality. Its parallax locates it at a close distance, below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, young cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is very well-studied in the literature.

Close Low extinction Near-solar metallicity Young

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

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for Alessi Teutsch 12 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–	255.372	-58.995	1.656	-2.272	-8.974	-2.729
Li et al.	2025	255.421	-58.981	1.632	-2.134	-8.952	–
Almeida et al.	2025	255.415	-59.026	–	–	–	–
Alfonso et al.	2024	255.409	-59.048	1.624	-2.27	-8.96	–
Hunt & Reffert	2024	255.411	-59.008	1.644	-2.313	-8.985	-5.207
Cavallo et al.	2024	255.353	-59.036	1.647	–	–	–
Hunt & Reffert	2023	255.411	-59.008	1.644	-2.313	-8.985	-5.207
Tarricq et al.	2022	255.35	-58.985	1.643	-2.289	-8.961	–
Dias et al.	2021	255.415	-59.026	1.628	-2.169	-8.946	-11.236
Cantat-Gaudin et al.	2020	255.421	-58.981	1.632	-2.134	-8.952	–
Cantat-Gaudin & Anders	2020	255.421	-58.981	1.632	-2.134	-8.952	–
Bossini et al.	2019	255.421	-58.981	–	–	–	–
Soubiran et al.	2018	255.421	-58.981	–	–	–	-5.88
Bica et al.	2019	255.438	-58.957	–	–	–	–
Cantat-Gaudin et al.	2018	255.421	-58.981	1.632	-2.134	-8.952	–
Dias et al.	2014	255.446	-58.958	–	-2.72	-5.32	–
Gozha et al.	2012	255.446	-58.958	–	–	–	–
Piskunov et al.	2008	255.481	-59.011	–	–	–	–
Kharchenko et al.	2007	255.49	-59.01	–	0.55	–	-6.0
Kharchenko et al.	2005	255.49	-59.01	–	-3.34	-7.79	-6.0
Dias et al.	2002	255.446	-58.958	–	-3.34	-7.79	-6.0

💡 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–	0.62	0.37	0.45	86	0.000	88	–	–
Li et al.	2025	0.65	0.32	–	78	0.232	–	–	–
Almeida et al.	2025	0.60	0.48	–	86	–	88	–	–
Alfonso et al.	2024	0.64	0.35	–	72	-0.056	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	42⁽¹⁾	–	–
Cavallo et al.	2024	0.61	0.42	–	110	0.460	–	–	–
Hunt & Reffert	2023	0.58	0.20	0.45	105	–	–	–	–
Tarricq et al.	2022	0.63	–	–	89	–	–	–	–
Dias et al.	2021	0.60	0.48	–	86	-0.056	–	–	–
Cantat-Gaudin et al.	2020	0.64	0.35	–	87	–	–	–	–
Cantat-Gaudin & Anders	2020	0.60	–	–	–	–	–	–	–
Bossini et al.	2019	0.61	0.38	–	95	0.000	–	–	–
Soubiran et al.	2018	0.60	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	0.60	–	–	–	–	–	–	–
Gozha et al.	2012	0.70	–	–	12	–	1047	–	–
Piskunov et al.	2008	0.70	0.37	–	12	–	–	–	–
Kharchenko et al.	2005	0.70	0.37	–	12	–	–	–	–
Dias et al.	2002	0.70	0.37	–	12	–	–	–	–

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

Visualization

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