MCM 68

(fsr 1712; MCM2005b 68; MWSC 2332; GLIMPSE 68; Mercer 68)

0.15 UTI

0.0

C_N

0.15

C_dens

0.12

C_C3

0.23

C_lit

1.0

C_dup

N₅₀ (P>50% members) 17

Stellar density (N₅₀/rad) 0.7 [N/pc²]

C3 classification DC

C_N 0.0 Sparse
C_dens 0.15 Very loose
C_C3 0.12 Very low quality
C_lit 0.23 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 68 is a sparse, very loose object of very low C3 quality. Its parallax locates it at a moderate^* distance, above the mid-plane, affected by moderate extinction. It is catalogued as an intermediate-age cluster (see Parameters). It is rarely studied in the literature.

(*): The parallax distance estimate (~2.69 kpc) differs significantly from the median photometric distance (~1.14 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 Intermediate age

Morales et al. (2013)
Classified as morphological type 'OC2' (totally exposed cluster without correlation with ATLASGAL emission). Morphological flag: exposed cluster, without submm emission.

Mercer et al. (2005)
Cluster of stars. Detected using no magnitude cut. Detected in 2MASS catalog with our algorithm.

Data

🔍 Search references for MCM 68 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–	238.658	-52.544	0.371	-5.734	-5.228	–
Just et al.	2023	238.668	-52.479	–	–	–	–
Bica et al.	2019	238.694	-52.528	–	–	–	–
Dib et al.	2018	238.68	-52.48	–	–	–	–
Joshi et al.	2016	238.68	-52.48	–	–	–	–
Kharchenko et al.	2016	238.668	-52.479	–	–	–	–
Kharchenko et al.	2013	238.68	-52.48	–	-4.57	-2.67	–
Morales et al.	2013	238.692	-52.53	–	–	–	–
Froebrich et al.	2007	238.692	-52.502	–	–	–	–
Mercer et al.	2005	238.695	-52.53	–	–	–	–

💡 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–	1.14	2.17	–	398	–	76	–	–
Just et al.	2023	–	–	–	398	–	76	–	–
Dib et al.	2018	1.14	–	–	398	–	–	–	–
Joshi et al.	2016	1.14	2.17	–	398	–	–	–	–
Kharchenko et al.	2016	1.14	2.17	–	398	–	–	–	–
Kharchenko et al.	2013	1.14	2.17	–	398	–	–	–	–
Morales et al.	2013	1.80	–	–	1000	–	–	–	–

Visualization

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