MCM 18 is a sparse, very loose object of low C3 quality. Its parallax locates it at a large distance, near the mid-plane. No fundamental parameter values are available for this object. It is rarely studied in the literature, with no articles listed in the last 21 years.

⚠️ 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.

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	287.44	8.252	0.106	-2.171	-5.353	55.872
Mercer et al.	2005	287.46	8.325	–	–	–	–

💡 Note: The UCC values are estimated from its identified members.