NGC 1790 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 moderate extinction. It is catalogued as an old cluster (see Parameters). It is rarely studied in the literature, with no articles listed in the last 9 years.

(*): The parallax distance estimate (~4.54 kpc) differs significantly from the median photometric distance (~2.93 kpc).

Note: This object shares a very small percentage of members with a later reported entry. See table with shared members information.

⚠️ 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	–	77.747	52.105	0.22	-0.065	0.1	-21.823
Loktin & Popova	2017	77.76	52.118	–	-0.528	-0.372	–
Dias et al.	2014	77.758	52.118	–	0.2	0.27	–

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