NOUN
- (astronomy) a measure of time defined by Earth's orbital motion; terrestrial time is mean solar time corrected for the irregularities of the Earth's motions
How To Use ephemeris time In A Sentence
- Furthermore, if ephemeris time is that measured in the “photonic” system, as it is in a certain suggested alternatives to GR, then the Pioneer spacecraft will appear to have an anomalous sunwards acceleration of cH or 6. 69×10-8 cm. sec-2; such an acceleration aP = (8. 74±1.33) ×10-8 cm. sec-2 is actually observed. Please Tell Me What “God” Means