NGC 7031

(Collinder 430; FSR 0294; MWSC 3466; OCL 210)

0.92 UTI

0.79

C_N

1.0

C_dens

1.0

C_C3

0.91

C_lit

1.0

C_dup

N₅₀ (P>50% members) 211

Stellar density (N₅₀/rad) 39.9 [N/pc²]

C3 classification AA

C_N 0.79 Rich
C_dens 1.0 Very dense
C_C3 1.0 Very high quality
C_lit 0.91 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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NGC 7031 is a rich, very dense object of very high C3 quality. Its parallax locates it at a relatively close distance, above the mid-plane, affected by moderate extinction. It is catalogued as a metal-rich, 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 Moderate extinction Metal-rich Intermediate age

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.64 (50th percentile).

Data

🔍 Search references for NGC 7031 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–	316.809	50.863	0.721	-1.251	-4.274	2.419
Hunt & Reffert	2024	316.803	50.866	0.713	-1.243	-4.281	12.045
Cavallo et al.	2024	316.811	50.859	0.722	–	–	–
Hunt & Reffert	2023	316.803	50.866	0.713	-1.243	-4.281	12.045
Just et al.	2023	316.77	50.872	–	–	–	–
Tarricq et al.	2022	316.813	50.882	0.716	-1.248	-4.283	–
Richer et al.	2021	316.81	50.863	0.669	-1.213	-4.216	–
Cantat-Gaudin et al.	2020	316.809	50.87	0.704	-1.242	-4.205	–
Sánchez et al.	2020	316.8	50.875	–	-1.291	-4.396	–
Cantat-Gaudin & Anders	2020	316.809	50.87	0.704	-1.242	-4.205	–
Soubiran et al.	2018	316.809	50.87	–	–	–	-4.16
Bica et al.	2019	316.833	50.834	–	–	–	–
Cantat-Gaudin et al.	2018	316.809	50.87	0.704	-1.242	-4.205	–
Loktin & Popova	2017	316.8	50.875	–	-0.68	-1.207	0.2
Kharchenko et al.	2016	316.77	50.872	–	–	–	–
Dias et al.	2014	316.8	50.875	–	-2.87	-4.77	–
Kharchenko et al.	2013	316.774	50.875	–	-1.95	-4.01	0.2
Gozha et al.	2012	316.8	50.875	–	–	–	–
Kharchenko et al.	2012	316.774	50.875	–	-1.95	-4.01	0.24
Bukowiecki et al.	2011	316.754	50.879	–	–	–	–
Froebrich et al.	2007	316.688	50.857	–	–	–	–
van den Bergh	2006	316.803	50.882	–	–	–	–
Dias et al.	2002	316.8	50.875	–	-2.87	-4.77	0.24
Lynga	1987	316.833	50.834	–	–	–	–
Sulentic et al.	1973	316.829	50.835	–	–	–	–

💡 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–	1.1	2.6	2.78	141	0.730	377	–	–
Hunt & Reffert	2024	–	–	–	–	–	1403⁽¹⁾	–	–
Cavallo et al.	2024	1.72	3.23	–	31	0.730	–	–	–
Hunt & Reffert	2023	1.32	3.23	2.78	23	–	–	–	–
Just et al.	2023	–	–	–	158	–	48	–	–
Tarricq et al.	2022	1.40	–	–	186	–	–	–	–
Richer et al.	2021	–	1.46	–	–	–	–	–	–
Cantat-Gaudin et al.	2020	1.45	2.14	–	155	–	–	–	–
Kounkel et al.	2020	1.33	2.59	–	112	–	–	–	–
Cantat-Gaudin & Anders	2020	1.36	–	–	–	–	–	–	–
Soubiran et al.	2018	1.36	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	1.36	–	–	–	–	–	–	–
Loktin & Popova	2017	0.94	2.80	–	157	–	–	–	–
Kharchenko et al.	2016	1.10	2.60	–	158	–	–	–	–
Kharchenko et al.	2013	1.10	2.60	–	158	–	–	–	–
Bukowiecki et al.	2012	–	–	–	–	–	377	–	–
Gozha et al.	2012	0.90	–	–	137	–	–	–	–
Kharchenko et al.	2012	1.10	2.60	–	158	–	–	–	–
Bukowiecki et al.	2011	0.87⁽¹⁾	2.18	–	141	–	–	–	–
van den Bergh	2006	0.90	2.68	–	138	–	–	–	–
Dias et al.	2002	0.90	2.69	–	137	–	–	–	–
Lynga	1987	1.00	2.49	–	56	–	–	–	–

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

Visualization

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