NGC 2312

(MWSC 1043)

0.25 UTI

0.29

C_N

0.15

C_dens

0.12

C_C3

0.35

C_lit

1.0

C_dup

N₅₀ (P>50% members) 29

Stellar density (N₅₀/rad) 0.8 [N/pc²]

C3 classification DC

C_N 0.29 Poorly populated
C_dens 0.15 Very loose
C_C3 0.12 Very low quality
C_lit 0.35 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 2312 is a poorly populated, very loose object of very low C3 quality. Its parallax locates it at a moderate^* distance, above the mid-plane, affected by low extinction. It is catalogued as an intermediate-age cluster (see Parameters). It is poorly studied in the literature.

(*): The parallax distance estimate (~3.78 kpc) differs significantly from the median photometric distance (~2.44 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 Intermediate age

Data

🔍 Search references for NGC 2312 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–	104.707	10.319	0.265	-0.997	-1.223	72.472
Just et al.	2023	104.693	10.282	–	–	–	–
Loktin & Popova	2017	104.7	10.295	–	-0.568	-0.725	–
Kharchenko et al.	2016	104.693	10.282	–	–	–	–
Dias et al.	2014	104.696	10.295	–	-3.54	-2.32	–
Kharchenko et al.	2013	104.7	10.28	–	-0.9	-2.8	–
Dias et al.	2002	104.696	10.295	–	-3.54	-2.32	–

💡 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–	2.44	0.57	–	646	–	93	–	–
Just et al.	2023	–	–	–	646	–	93	–	–
Loktin & Popova	2017	3.06	0.22	–	724	–	–	–	–
Kharchenko et al.	2016	2.44	0.64	–	646	–	–	–	–
Kharchenko et al.	2013	2.44	0.64	–	646	–	–	–	–
Dias et al.	2002	2.25	0.50	–	331	–	–	–	–

Visualization

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