NGC 6846

(MWSC 3207)

0.68 UTI

0.76

C_N

0.92

C_dens

0.75

C_C3

0.48

C_lit

1.0

C_dup

N_m (P>50%) 138

Core radius and density 1.6 [pc], 4.6 [pc^-2]

C3 classification AB

C_N 0.76 Rich
C_dens 0.92 Very dense
C_C3 0.75 High quality
C_lit 0.48 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 6846 is a rich, very dense object of high C3 quality. Its parallax locates it at a very large^* distance, above the mid-plane, affected by high extinction. It is catalogued as a massive, metal-poor, intermediate-age cluster, but with a large variance across recent sources for the age parameter (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~12.41 kpc) differs significantly from the median photometric distance (~5.32 kpc).

Note: This object contains blue stragglers according to at least one source.

Very distant High extinction Massive Metal-poor Intermediate age Contains BSS

Cavallo et al. (2024)
Silver sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD class: 0.02 (50th percentile).

Hunt & Reffert (2023)
Classified as open cluster. CMD class: 0.02 (50th percentile).

Hu et al. (2021)
Ellipticities (core, all): e_core=0.178, e_all=0.2428.

Data

🔍 Search references for NGC 6846 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–	299.117	32.351	0.081	-2.884	-5.054	-43.175
Hunt & Reffert	2024	299.115	32.35	0.088	-2.873	-5.097	-42.508
Cavallo et al.	2024	299.101	32.337	0.09	–	–	–
Hunt & Reffert	2023	299.115	32.35	0.088	-2.873	-5.097	-42.508
Just et al.	2023	299.103	32.352	–	–	–	–
Jadhav & Subramaniam	2021	299.112	32.349	–	–	–	–
Cantat-Gaudin et al.	2020	299.112	32.349	0.089	-2.971	-4.994	–
Cantat-Gaudin & Anders	2020	299.112	32.349	0.089	-2.971	-4.994	–
Soubiran et al.	2018	299.112	32.349	–	–	–	-42.94
Cantat-Gaudin et al.	2018	299.112	32.349	0.089	-2.971	-4.994	–
Kharchenko et al.	2016	299.103	32.352	–	–	–	–
Tadross	2014	299.117	32.348	–	–	–	–
Dias et al.	2014	299.117	32.348	–	-0.05	-1.36	–
Kharchenko et al.	2013	299.109	32.355	–	0.12	-3.95	–
Bukowiecki et al.	2011	299.108	32.351	–	–	–	–
Dias et al.	2002	299.117	32.348	–	0.12	-3.95	–
Sulentic et al.	1973	299.125	30.351	–	–	–	–

💡 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–	5.32	3.31	2.39	501	-0.960	1528	–	1
Hunt & Reffert	2024	9.14	4.18	2.39	44	–	2214⁽¹⁾	–	–
Cavallo et al.	2024	4.51	3.92	–	178	-0.960	–	–	–
Hunt & Reffert	2023	9.14	4.18	2.39	44	–	–	–	–
Just et al.	2023	–	–	–	1429	–	873	–	–
Jadhav & Subramaniam	2021	5.32	2.85	–	490	–	1528	–	1⁽¹⁾
Cantat-Gaudin et al.	2020	5.32	2.85	–	490	–	–	–	–
Kounkel et al.	2020	4.60	2.93	–	912	–	–	–	–
Cantat-Gaudin & Anders	2020	8.50	–	–	–	–	–	–	–
Soubiran et al.	2018	8.50	–	–	–	–	–	–	–
Cantat-Gaudin et al.	2018	8.50	–	–	–	–	–	–	–
Kharchenko et al.	2016	4.45	3.31	–	1429	–	–	–	–
Tadross	2014	1.45	2.15	–	550	–	–	–	–
Kharchenko et al.	2013	4.45	3.31	–	1429	–	–	–	–
Dias et al.	2002	4.45	3.31	–	501	–	–	–	–

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

Visualization

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