NGC 6837

(MWSC 3199; OCL 108.1)

0.14 UTI

0.0

C_N

0.01

C_dens

0.12

C_C3

0.29

C_lit

1.0

C_dup

N_m (P>50%) 14

Core radius and density 2.4 [pc], 0.05 [pc^-2]

C3 classification DC

C_N 0.0 Sparse
C_dens 0.01 Very loose
C_C3 0.12 Very low quality
C_lit 0.29 Poorly studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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NGC 6837 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a moderate^* distance, well below the mid-plane, affected by low extinction. It is catalogued as an old cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~4.05 kpc) differs significantly from the median photometric distance (~2.21 kpc).

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Relatively close Low extinction Old

Data

🔍 Search references for NGC 6837 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–	298.282	11.709	0.247	-3.317	-3.92	–
Just et al.	2023	298.268	11.692	–	–	–	–
Bica et al.	2019	298.271	11.695	–	–	–	–
Dias et al.	2018	–	–	–	-1.71	-4.15	–
Loktin & Popova	2017	298.275	11.695	–	-0.006	-5.484	–
Sampedro et al.	2017	298.283	11.698	–	-2.8	-2.36	–
Kharchenko et al.	2016	298.268	11.692	–	–	–	–
Tadross	2014	298.283	11.698	–	–	–	–
Dias et al.	2014	298.283	11.698	–	-1.61	-0.76	–
Kharchenko et al.	2013	298.275	11.695	–	-1.3	-1.75	–
Dias et al.	2002	298.283	11.698	–	-1.61	-0.76	–
Lynga	1987	298.362	11.69	–	–	–	–

💡 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–	2.21	0.79	–	1523	–	492	–	–
Just et al.	2023	–	–	–	1567	–	492	–	–
Loktin & Popova	2017	2.21	0.19	–	1479	–	–	–	–
Kharchenko et al.	2016	3.37	1.12	–	1567	–	–	–	–
Tadross	2014	0.94	0.79	–	1000	–	–	–	–
Kharchenko et al.	2013	3.37	1.12	–	1567	–	–	–	–
Dias et al.	2002	0.94	0.79	–	1000	–	–	–	–

Visualization

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