https://liverpoolas.org/category/astronomical-objects-and-phenomena/deep-sky/open-clusters/
Open Clusters | Liverpool Astronomical Society
Sic Itur Ad Astra - Thus The Way To The Stars
open clustersliverpoolastronomicalsociety
https://faint-fuzzies.de/en/observations-open-clusters.php?constellation=Sgr
Open Clusters - Faint Fuzzies
open clustersfaintfuzzies
https://b2find.eudat.eu/dataset/f812bea7-194c-5c5d-b4bd-a51b3e9fca38
Companions in nearby open clusters - Dataset - B2FIND
Observations of companions of solar-type stars in nearby young moving groups (NYMGs) show that they split into two groups: stellar and brown dwarf companions...
open clusterscompanionsnearbydataset
https://www.aanda.org/articles/aa/abs/2007/46/aa8113-07/aa8113-07.html
Old open clusters in the outer Galactic disk | Astronomy & Astrophysics (A&A)
open clustersin theold
https://scinn.org.ua/en/archive/13%281%29/13%281%2910
Catalogue of Positions and Proper Motions of Stars in the Vicinity of Open Clusters | Academic and...
in the vicinity