King 13

(MWSC 21; OCL 285; FSR 0475)

0.95 UTI

1.0

C_N

1.0

C_dens

1.0

C_C3

0.87

C_lit

1.0

C_dup

N_m (P>50%) 669

Core radius and density 2.5 [pc], 8.7 [pc^-2]

C3 classification AA

C_N 1.0 Very rich
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.87 Well-studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

ℹ️

King 13 is a very rich, very dense object of very high C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by moderate extinction. It is catalogued as a massive, near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity and mass parameters (see Parameters). It is well-studied in the literature.

Note: This object shares a very small percentage of members with 5 later reported entries. See table with shared members information.

Distant Moderate extinction Massive Near-solar metallicity Intermediate age

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

Cavallo et al. (2024)
Gold sample.

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

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 1.00 (50th percentile).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.1308, e_all=0.019.

Data

🔍 Search references for King 13 in: SciX Simbad

ℹ️

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	2.554	61.173	0.249	-2.73	-0.87	-59.851
Otto et al.	2026	2.538	61.168	–	-2.75	-0.84	-48.3
Li et al.	2025	2.553	61.175	0.231	-2.746	-0.839	–
Hu & Soubiran	2025	2.562	61.175	–	–	–	–
Almeida et al.	2025	2.556	61.175	–	–	–	–
Hunt & Reffert	2024	2.538	61.168	0.252	-2.729	-0.876	-59.37
Cavallo et al.	2024	2.561	61.175	0.25	–	–	–
Hunt & Reffert	2023	2.538	61.168	0.252	-2.729	-0.876	-59.37
Almeida et al.	2023	2.555	61.175	–	–	–	–
Just et al.	2023	2.505	61.18	–	–	–	–
Jadhav & Subramaniam	2021	2.553	61.175	–	–	–	–
Dias et al.	2021	2.556	61.175	0.228	-2.759	-0.829	-61.086
Cantat-Gaudin et al.	2020	2.553	61.175	0.231	-2.746	-0.839	–
Sánchez et al.	2020	2.525	61.167	–	-2.815	-0.794	–
Cantat-Gaudin & Anders	2020	2.553	61.175	0.231	-2.746	-0.839	–
Soubiran et al.	2018	2.553	61.175	–	–	–	-60.35
Bica et al.	2019	2.539	61.204	–	–	–	–
Cantat-Gaudin et al.	2018	2.553	61.175	0.231	-2.746	-0.839	–
Dias et al.	2018	–	–	–	-2.44	-0.04	–
Loktin & Popova	2017	2.52	61.167	–	-0.511	-3.37	–
Sampedro et al.	2017	2.525	61.167	–	-2.75	-1.2	–
Kharchenko et al.	2016	2.505	61.18	–	–	–	–
Dias et al.	2014	2.525	61.167	–	-4.15	-2.46	–
Kharchenko et al.	2013	2.514	61.184	–	-0.14	-2.99	–
Kharchenko et al.	2012	2.514	61.184	–	0.09	-3.08	–
Bukowiecki et al.	2011	2.579	61.175	–	–	–	–
Dias et al.	2002	2.525	61.167	–	-4.15	-2.46	–
Lynga	1987	2.542	61.194	–	–	–	–

💡 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–	3.23	2.055	1.09	490	-0.165	2597	0.73	0
Otto et al.	2026	–	–	–	501	-0.190⁽¹⁵⁾	–	–	–
Li et al.	2025	3.46	2.02	–	593	-0.036	–	–	–
Hu & Soubiran	2025	–	–	–	–	-0.200⁽⁵⁾	–	–	–
Almeida et al.	2025	3.12	2.14	–	621	–	2164	–	–
Hunt & Reffert	2024	3.64	2.05	1.09	329	–	4579⁽¹⁾	–	–
Cavallo et al.	2024	3.09	2.06	–	603	0.130	–	–	–
Hunt & Reffert	2023	3.64	2.05	1.09	330	–	–	–	–
Almeida et al.	2023	3.23	2.19	–	575	-0.155	1577⁽¹⁾	0.73	–
Just et al.	2023	–	–	–	394	–	274	–	–
Jadhav & Subramaniam	2021	3.53	1.76	–	501	–	3030	–	0⁽¹⁾
Dias et al.	2021	3.12	2.14	–	621	-0.174	–	–	–
Cantat-Gaudin et al.	2020	3.53	1.76	–	501	–	–	–	–
Kounkel et al.	2020	3.77	2.01	–	479	–	–	–	–
Cantat-Gaudin & Anders	2020	3.85	–	–	–	–	–	–	–
Soubiran et al.	2018	3.85	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	3.85	–	–	–	–	–	–	–
Loktin & Popova	2017	3.16	1.60	–	417	–	–	–	–
Kharchenko et al.	2016	3.10	2.59	–	394	–	–	–	–
Kharchenko et al.	2013	3.10	2.59	–	394	–	–	–	–
Bukowiecki et al.	2012	–	–	–	–	–	3870	–	–
Kharchenko et al.	2012	3.10	2.59	–	395	–	–	–	–
Bukowiecki et al.	2011	2.97⁽¹⁾	1.64	–	794	–	–	–	–
Dias et al.	2002	3.10	2.59	–	316	–	–	–	–

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

Cluster	%	RA	DEC	Plx	pmRA	pmDE	Rv
OC 0217	7.6	2.53	61.18	0.25	-2.72	-0.88	-59.69
OC 0216	4.6	2.51	61.17	0.25	-2.75	-0.88	-59.69
OC 0215	3.7	2.51	61.17	0.23	-2.72	-0.87	-59.66
OC 0218	3.7	2.51	61.15	0.26	-2.74	-0.83	-58.07
OC 0219	3.7	2.64	61.19	0.26	-2.73	-0.84	-61.3

💡 Note: The % column shows the percentage of members that King 13 shares with each listed object.

Visualization

ℹ️

1 2 3