MCM 69

(MCM2005b 69)

0.13 UTI

0.0

C_N

0.01

C_dens

0.62

C_C3

0.0

C_lit

1.0

C_dup

N₅₀ (P>50% members) 10

Stellar density (N₅₀/rad) 0.1 [N/pc²]

C3 classification AC

C_N 0.0 Sparse
C_dens 0.01 Very loose
C_C3 0.62 Intermediate 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 69 is a sparse, very loose object of intermediate C3 quality. Its parallax locates it at a large^* 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 (~5.27 kpc) differs significantly from the median photometric distance (~2.33 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

Morales et al. (2013)
Classified as morphological type 'OC0' (emerging exposed cluster). Morphological flag: possibly associated submm emission surrounding the cluster, presence of an IR bubble.

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

Data

🔍 Search references for MCM 69 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–	241.358	-53.039	0.19	-5.453	-4.641	-58.656
Morales et al.	2013	241.221	-53.008	–	–	–	–
Mercer et al.	2005	241.22	-53.008	–	–	–	–

💡 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–	2.33	–	–	–	–	–	–	–
Morales et al.	2013	2.33	–	–	–	–	–	–	–

Visualization

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