Sentences with phrase «estimated orbital period»

[4] They appear to be gravitationally bound with an estimated orbital period of around 7,000 years.

It has an estimated orbital period of approximately 12 Earth days — smaller than that of Mercury — with a semimajor axis of 0.10 AU and an eccentricity smaller than 0.24.

Not exact matches

Once confirmed, a transit allows astronomers to confidently measure a planet's orbital period — its year — as well as to estimate its size, by comparing the depth of its shadow with the estimated dimensions and luminosity of its star.

Assuming this is the orbital period of hot gas revolving near the black hole, the astronomers deduce that the monster weighs 450,000 to 5 million times more than the sun, agreeing with previous estimates and making the black hole comparable to the 4 - million - solar - mass one at the Milky Way's center — but located in a galaxy 3.9 billion light - years away.

The new approach would require only estimates of the star's mass and the planet's mass and orbital period — all of which can be easily obtained with Earth - or space - based telescopes.

Little is known about these faraway worlds beyond bulk properties such as their orbital periods, estimated masses and, on relatively rare occasions, their diameters.

Our new -LCB- \ em Spitzer -RCB- observations were taken two years after the original K2 discovery data and have a significantly higher cadence, allowing us to derive improved estimates for this planet's radius, semi-major axis, and orbital period, which greatly reduce the uncertainty in the prediction of near future transit times for the -LCB- \ em James Webb Space Telescope -RCB--LRB--LCB- \ em JWST -RCB--RRB- observations.

Based on its estimated bolometric luminosity, the distance from HR 4523 A where an Earth - type planet would be «comfortable» with liquid water is centered around 0.88 AU — between the orbital distance of Venus and Earth in the Solar System, with an orbital period about 330 days, or about 90 percent of an Earth year.

«While the earlier estimate of ± 20 % [Schulz, 2002] is consistent with a solar cycle (the 11 - year sunspot cycle varies in period by ± 14 %), a much higher precision would point more to an orbital cycle.

In this study, we use correct relations between orbital and rotational periods to show that the inner edge of the habitable zone around low mass, cool stars is not as close as the estimates from previous studies.

The new object is separated from ba by 2.65 AUs and has an estimated, nominal orbital period of around 15 years (McCaughrean et al, 2003).

The sea - level estimates are consistent with those from delta18O curves and numerical ice sheet models, and imply a significant sensitivity of the WAIS and the coastal margins of the EAIS to orbital oscillations in insolation during the Mid-Pliocene period of relative global warmth.

«While the earlier estimate of ± 20 % [Schulz, 2002] is consistent with a solar cycle (the 11 - year sunspot cycle varies in period by ± 14 %), a much higher precision would point more to an orbital cycle.