MCM 46

(MCM2005b 46)

0.15 UTI

0.33

C_N

0.27

C_dens

0.12

C_C3

0.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 33

Stellar density (N₅₀/rad) 1.4 [N/pc²]

C3 classification DC

C_N 0.33 Poorly populated
C_dens 0.27 Loose
C_C3 0.12 Very low quality
C_lit 0.0 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

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

Overview

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MCM 46 is a poorly populated, loose object of very low C3 quality. Its parallax locates it at a moderate^* distance, near the mid-plane. It is catalogued as a cluster (see Parameters). It is rarely studied in the literature, with no articles listed in the last 13 years.

(*): The parallax distance estimate (~3.03 kpc) differs significantly from the median photometric distance (~7.11 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.

Very distant

Morales et al. (2013)
Classified as morphological type 'EC2' (partially embedded cluster). Morphological flag: cluster partially embedded, presence of emission related to PAH or warm dust.

Mercer et al. (2005)
Associated with mid-IR extended emission. Cluster of stars.

Data

🔍 Search references for MCM 46 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–	211.813	-61.468	0.33	-5.543	-2.807	-21.974
Morales et al.	2013	211.9	-61.453	–	–	–	–
Mercer et al.	2005	211.9	-61.453	–	–	–	–

💡 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–	7.11	–	–	–	–	–	–	–
Morales et al.	2013	7.11	–	–	–	–	–	–	–

Visualization

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