Fornax galaxy with four globular clusters marked

This is a Digitized Sky Survey 2 image of the dwarf galaxy Fornax. Highlighted here are four globular clusters found in the galaxy called Fornax 1, 2, 3 and 5. 

ESO/Digitized Sky Survey 2

New observations of the four clusters — large balls of stars that orbit the centres of galaxies — show they are very similar to those found in our galaxy, the Milky Way. The finding is at odds with leading theories on how these clusters form — in these theories, globular clusters should be nestled among large quantities of old stars — and so the mystery of how these objects came to exist deepens.

The Fornax Dwarf Spheroidal galaxy is a relatively distant companion of the Milky Way at high galactic latitude (b = −65.7°). It is located at a distance of 138 ± 8 kpc, with an heliocentric velocity v_hel = 53±2 km s⁻¹, a luminosity M_V = −13.0±0.3. The Fornax Dwarf Spheroidal is one of the most massive and luminous of the dwarf galaxy satellites of our Galaxy, second only to Sagittarius, with a total (dynamical) mass in the range 10⁸−10⁹M_⊙.