FSR 0903 is a poorly populated, very dense object of intermediate C3 quality. Its parallax locates it at a moderate^* distance, near the mid-plane, affected by high extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster, but with a large variance across recent sources for the metallicity parameter (see Parameters). It is moderately studied in the literature.

(*): The parallax distance estimate (~2.43 kpc) differs significantly from the median photometric distance (~1.63 kpc).

Note: This object shares a significant percentage of members with 2 later reported entries. See table with shared members information.

Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	–	91.889	19.129	0.411	-0.154	-1.128	14.478
Zhang et al.	2024	91.874	19.093	–	–	–	–
Hunt & Reffert	2024	91.874	19.093	0.394	-0.158	-1.142	14.02
Cavallo et al.	2024	91.899	19.127	0.392	–	–	–
Hunt & Reffert	2023	91.874	19.093	0.394	-0.158	-1.142	14.02
Just et al.	2023	91.874	19.096	–	–	–	–
Bica et al.	2019	91.896	19.111	–	–	–	–
Kharchenko et al.	2016	91.874	19.096	–	–	–	–
Dias et al.	2014	91.892	19.113	–	-1.27	-4.22	–
Kharchenko et al.	2013	91.882	19.095	–	1.48	-5.42	–
Froebrich et al.	2007	91.892	19.113	–	–	–	–
Dias et al.	2002	91.892	19.113	–	-1.27	-4.22	–

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