Sentences with word «ephemeris»
The word "ephemeris" refers to a type of table, chart, or publication that provides information about the positions of celestial objects at specific times. It helps astronomers and navigators track the movements of planets, stars, and other astronomical bodies. Full definition
In order to detect as many of these false positives as possible, we perform ephemeris matching among all transiting planet, eclipsing binary, and variable star sources.
arxiv.org
Two distinct sets of transit events were detected: 1) a 152 + / - 4 ppm dimming lasting 1.811 + / - 0.024 hours with ephemeris T [BJD] = 2454964.57375 + N... ▽ More NASA's Kepler Mission uses transit photometry to determine the frequency of earth - size planets in or near the habitable zone of Sun - like stars.
We report a significant sinusoidal deviation of the transit times from a predicted linear ephemeris, which we conclude is due to an additional perturbing body in the system.
The requirements of specialized machines drove a proliferation of timescales customized to each user: Universal time, sidereal time, ephemeris time, barycentric time, and terrestrial time are just a few examples.
The researchers were able to separate some of the solar parameters from the relativistic effects, something not accomplished by earlier studies that relied on ephemeris data.
The study began by improving Mercury's charted ephemeris — the road map of the planet's position in our sky over time.
The orbit data for each NEO can be accessed through JPL's Small - Body Database, and the JPL Horizons system provides an interface through which ephemeris data (position and velocity versus time) can be accessed for each of the NEOs.
[54] All future positions are now sufficiently accurate for visual observers to determine the relative places of the stars from a binary star ephemeris.
Sun Strategy is an amazingly powerful Sun / Moon ephemeris, surveyor, planning and weather tool for photographers.
In the description of the DE200 planetary ephemeris, it is pointed out that, contrary to all the other objects in the computation which use the Solar system barycentre, the orbit of our own moon is computed relative to the Earth - Moon barycentre, because then, the orbit integration will behave nicer numerically — which is good, as the Moon is an object of special interest.
Solutions La2010a, b and c are based on the INPOP08 ephemeris while La2010d is based on INPOP0649.
We present another 136 weaker TTV candidates (9.8 % of suitable data sets) based on excess scatter of TTV measurements about a linear ephemeris.
Two distinct sets of transit events were detected: 1) a 152 + / - 4 ppm dimming lasting 1.811 + / - 0.024 hours with ephemeris T [BJD] = 2454964.57375 + N * 0.837495 days and 2) a 376 + / - 9 ppm dimming lasting 6.86 + / - 0.07 hours with ephemeris T [BJD] = 2454971.6761 + N * 45.29485 days.