NGC 2165

0.13 UTI

0.0

C_N

0.03

C_dens

0.62

C_C3

0.0

C_lit

1.0

C_dup

C3 classification AC

Number of members (P>50%) 16

Radius (P>50% members) 7.6 [arcmin]

C_N 0.0 Sparse
C_dens 0.03 Very loose
C_C3 0.62 Intermediate quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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NGC 2165 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a moderate^* distance, well above the mid-plane, affected by moderate extinction. It is catalogued as an old cluster (see Parameters). It is rarely studied in the literature, with no articles listed in the last 9 years.

(*): The parallax distance estimate (~4.91 kpc) differs significantly from the median photometric distance (~1.99 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 Moderate extinction Old

Data

🔍 Search references for NGC 2165 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	–	92.755	51.706	0.204	-0.518	-1.092	-61.621
Loktin & Popova	2017	92.76	51.678	–	-0.596	-2.106	–
Dias et al.	2014	92.767	51.677	–	-0.11	-4.04	–
Dias et al.	2002	92.767	51.677	–	-0.11	-4.04	–

💡 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
Loktin & Popova	2017	2.53	1.32	–	1000	–	–	–	–
Dias et al.	2002	1.45	0.71	–	1514	–	–	–	–

Visualization

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