ASCC 12

(MWSC 427; FoF 2323)

0.90 UTI

0.76

C_N

1.0

C_dens

0.75

C_C3

1.0

C_lit

1.0

C_dup

C3 classification AB

Number of members (P>50%) 114

Radius (P>50% members) 10.2 [arcmin]

C_N 0.76 Rich
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 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

ℹ️

ASCC 12 is a rich, 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, intermediate-age cluster, but with a large variance across recent sources for the age and mass parameters (see Parameters). It is very well-studied in the literature.

Relatively close Low extinction Near-solar metallicity Intermediate age

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

Cavallo et al. (2024)
Gold sample.

Data

🔍 Search references for ASCC 12 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	–	72.396	41.743	0.944	-0.684	-2.943	-26.177
Li et al.	2025	72.4	41.744	0.941	-0.634	-2.794	–
Almeida et al.	2025	72.433	41.784	–	–	–	–
Zhang et al.	2024	72.421	41.714	–	–	–	–
Hunt & Reffert	2024	72.421	41.714	0.955	-0.676	-2.916	-26.145
Cavallo et al.	2024	72.499	41.708	0.952	–	–	–
Hunt & Reffert	2023	72.421	41.714	0.955	-0.676	-2.916	-26.145
Almeida et al.	2023	72.46	41.803	–	–	–	–
Just et al.	2023	72.471	41.719	–	–	–	–
He et al.	2022	72.431	41.718	0.955	-0.684	-2.948	–
Tarricq et al.	2022	72.346	41.728	0.929	-0.619	-2.928	–
Dias et al.	2021	72.433	41.784	0.936	-0.616	-2.81	-69.436
Cantat-Gaudin et al.	2020	72.4	41.744	0.941	-0.634	-2.794	–
Cantat-Gaudin & Anders	2020	72.4	41.744	0.941	-0.634	-2.794	–
Liu & Pang	2019	72.374	41.72	0.938	-0.586	-2.858	–
Bica et al.	2019	72.434	41.733	–	–	–	–
Cantat-Gaudin et al.	2018	72.4	41.744	0.941	-0.634	-2.794	–
Kharchenko et al.	2016	72.471	41.719	–	–	–	–
Dias et al.	2014	72.479	41.73	–	-0.45	-1.97	–
Kharchenko et al.	2013	72.481	41.719	–	-1.83	-2.1	–
Kharchenko et al.	2012	72.481	41.719	–	-1.83	-2.1	–
Piskunov et al.	2008	72.472	41.731	–	–	–	–
Kharchenko et al.	2005	72.48	41.73	–	-0.62	-1.86	–
Dias et al.	2002	72.479	41.73	–	-1.83	-2.1	–

💡 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]	Bfr	BSS
Li et al.	2025	1.00	0.88	–	379	-0.156	–	–	–
Almeida et al.	2025	1.01	1.09	–	227	–	334	–	–
Zhang et al.	2024	–	–	–	–	-0.151*	–	–	–
Hunt & Reffert	2024	–	–	–	–	–	374*	–	–
Cavallo et al.	2024	1.06	0.99	–	339	0.000	–	–	–
Hunt & Reffert	2023	1.00	0.71	0.83	297	–	–	–	–
Almeida et al.	2023	1.01	1.01	–	313	-0.112	359*	0.45	–
Just et al.	2023	–	–	–	427	–	14	–	–
He et al.	2022	–	1.10	–	63	–	–	–	–
Tarricq et al.	2022	1.02	–	–	95	–	–	–	–
Dias et al.	2021	1.01	1.09	–	227	-0.114	–	–	–
Cantat-Gaudin et al.	2020	1.05	0.70	–	93	–	–	–	–
Cantat-Gaudin & Anders	2020	1.03	–	–	–	–	–	–	–
Liu & Pang	2019	–	–	–	129	0.500	–	–	–
Cantat-Gaudin et al.	2018	1.03	–	–	–	–	–	–	–
Kharchenko et al.	2016	0.60	0.46	–	427	–	–	–	–
Kharchenko et al.	2013	0.60	0.46	–	427	–	–	–	–
Kharchenko et al.	2012	0.60	0.46	–	427	–	–	–	–
Piskunov et al.	2008	0.50	0.46	–	263	–	–	–	–
Kharchenko et al.	2005	0.50	0.46	–	263	–	–	–	–
Dias et al.	2002	0.50	0.46	–	263	–	–	–	–

(*): Indicates that this parameter is assigned more than one value in the corresponding reference.

Visualization

ℹ️

1 2 3