NGC 2394

0.20 UTI

0.0

C_N

0.16

C_dens

0.25

C_C3

0.3

C_lit

1.0

C_dup

N₅₀ (P>50% members) 24

Stellar density (N₅₀/rad) 0.8 [N/pc²]

C3 classification CC

C_N 0.0 Sparse
C_dens 0.16 Very loose
C_C3 0.25 Low quality
C_lit 0.3 Poorly studied
C_dup 1.0 Unique

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

Overview

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NGC 2394 is a sparse, very loose object of low C3 quality. Its parallax locates it at a moderate^* distance, well 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, with no articles listed in the last 9 years.

(*): The parallax distance estimate (~3.96 kpc) differs significantly from the median photometric distance (~0.99 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.

Close Low extinction Intermediate age

Cantat-Gaudin & Anders (2020)
Flagged as non-existent in the Revised NGC. Sparse CMD-based estimates exist, but it is considered an asterism in recent compilations. More details in Appendix A of the article.

Data

🔍 Search references for NGC 2394 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–	112.145	7.101	0.253	-1.039	-0.577	–
Loktin & Popova	2017	112.14	7.087	–	-6.02	-4.569	–
Dias et al.	2014	112.15	7.087	–	-0.27	-0.83	–
Bukowiecki et al.	2011	112.158	7.161	–	–	–	–
Dias et al.	2002	112.15	7.087	–	-0.27	-0.83	–

💡 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–	0.99	0.4	–	891	–	88	–	–
Loktin & Popova	2017	2.48	0.13	–	832	–	–	–	–
Bukowiecki et al.	2012	–	–	–	–	–	88	–	–
Bukowiecki et al.	2011	0.99⁽¹⁾	0.40	–	891	–	–	–	–
Dias et al.	2002	0.94	0.40	–	891	–	–	–	–

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

Visualization

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