This cluster is on an orbit through theMilky Way galaxy that has aneccentricity of 0.22 ± 0.07 and aperiod of (225.0 ± 27.1) million years. It will come as close as 20.2 ± 3.9 kly (6.2 ± 1.2 kpc) to, and as distant as 31.6 ± 2.9 kly (9.7 ± 0.9 kpc) from, theGalactic Center. The maximum distance reached above (or below) thegalactic plane is 0.78 ± 1.30 kly (0.24 ± 0.40 kpc). On average, it will cross the galactic plane every (35.7 ± 13.0) million years.[4]
^abcdeGupta, A. C.; et al. (September 2000), "A complete photometric study of the open cluster NGC 7790 containing Cepheid variables",Astronomy and Astrophysics Supplement,145 (3):365–375,Bibcode:2000A&AS..145..365G,doi:10.1051/aas:2000247.
Media related toNGC 7790 at Wikimedia Commons
