Search Results for: Astronomical instruments
center-to-center orbital point from the sun. the june solstice happened monday, june , , at : utc ( : p.m. edt). the june solstice marks earth's axial tilt, at the north pole, toward the sun and astronomically opens northern summer and southern winter. distances between earth and sun are expressed in astronomical
units (au). in , the international astronomical union (iau) placed the value of au at meters, equivalent to kilometers or, roughly, miles. retired nasa astrophysicist fred espenak places 's aphelion (ancient greek ἀπό, apó, "from" + ἥλιος, hḗlios, "sun") at astronomical units ( , kilometers)...
https://earth-and-space-news.blogspot.com/2016/06/