Apparent retrograde motion notable on Mars which has two natural satellites, Phobos and Deimos. Both moons orbit Mars in an eastward (prograde) direction, however Deimos has an orbital period of 1.23 Martian sidereal days, making it supersynchronous, whereas Phobos has an orbital period of 0.31 Martian sidereal days making it subsynchronous. Consequently, although both moons are travelling in an eastward (prograde) direction, they appear to be travelling in opposite directions when viewed from the surface of Mars due to their orbital periods in relation to the rotational period of the planet. All other planetary bodies in the Solar System also appear to periodically
One Is the Other particular focus on a clearly vibrant New York scene, the sublimely open "One is the Other" is both this quartet's best record yet, and further evidence to counter those who accuse ECM's purview of being too Euro-centric." "All compositions by Billy Hart, except where noted" One Is the Other One Is the Other is an album by jazz drummer Billy Hart, released on ECM Records in 2014. The "AllMusic" review by Thom Jurek states ""One Is the Other" is the sound of an experienced and deeply intuitive quartet speaking in a colorful and precise language numerous dialects and approaches to