Sentences with phrase «planet b»

More methane than would be predicted by conventional models of the atmosphere of «hot Jupiters» has been detected in planet b's atmosphere (more).

However, the presence of planet b at its orbital distance of nearly 0.5 AU may have disrupted the development of an Earth - type planet in the water zone.

In 2006, astronomers discovered a very dim («mid-range»), red dwarf companion to HD 189733 A of spectral and luminosity type M V. Observed at a separation of 216 AUs from Star A, the companion star has a clockwise orbit that is nearly perpendicular to the orbital plane of transiting planet b around Star A (HD 189733 b or Ab).

An inner moon of planet b with tidally heated ice melt, as imagined by Kulmann (more).

By itself the HIRES data only seems to be able to detect planets b and c: after that the next strongest period is at 26.2474 days with a FAP of 0.292 %.

Although planet b orbits Tau Boötis A quite closely, this star is even hotter than Sol (as an F spectral type).

But the better constraint on the mass of planet b suggests that that it is roughly 50 percent iron.

Stable orbits for a Earth - type, rocky inner planet appear to exist in the inner portion of the habitable zone (1.1 to 1.8 AUs), where the nearer planet b (labelled «A» in the chart) less likely to disrupt its orbit (news release).

They found that the development of an Earth - like planet in the inner portion of this zone may survive disruption from the development of known planetary candidates planet b and c.

Another view of planet b losing its atmosphere, as imagined by Kulmann (more).

We find that TRAPPIST - 1 c and e likely have largely rocky interiors, while planets b, d, f, g, and h require envelopes of volatiles in the form of thick atmospheres, oceans, or ice, in most cases with water mass fractions less than 5 %.»

© Walter Myers — larger image (Artwork from Computergraphic Vistas, used with permission) View of planet b from a baked and cracked moon with very dim companion Star B at upper right, as imagined by Myers (more).

On May 9, 2007, a team of astronomers announced that the difference in planet b's cloud - top temperatures between the perpetual day and night sides only differs by around 500 ° F (or 260 ° C), which is much less than expected.

Planet b appears to move around Aldebaran A with an average separation of 1.35 AUs with a period of almost 654 days, or about 1.8 years.

However, the orbit of planet b or A1 with an average distance of 1.26 AUs would disrupt the orbital stability of an Earth - type planet in HD 147513 A's water zone.

In prepared remarks that were interrupted by protesters shouting «There is no planet B», Pruitt said he would seek to ensure rules imposed by the EPA were effective, but without hurting development.

It's important to emphasize we have no Planet B available.

If we make the wrong choices, there is no planet B for us to turn to.»

The PFS observations indicate that planet b is roughly eight times the mass of Earth, which would make it one of the most - massive and dense super-Earths yet discovered.

This is why GJ 9827's three planets are special — with radii of 1.64 (planet b), 1.29 (planet c) and 2.08 (planet d), they span this dividing line between super-Earth (rocky) and sub-Neptune (somewhat gassy) planets.

A new generation M5 rocket will be developed to launch the probe, known as «Planet B».

(Planet b is outside the field of view shown here, off to the left.)

However, the presence of planet b may perturb the orbit of such a hypothetical Earth - mass planet.

The spectrum of planet b was obtained through subtraction when Star A eclipsed the planet (more).

Planet b's atmosphere may have tiny sand grains (more from SSC and APOD).

Astronomers have also observed that planet b is eclipsed by its star by about two minutes (120 + / - 24 seconds) later than would be expected if it has a perfectly circular orbit.

Artist rendition of the Kepler - 9 planetary system, showing the two Saturn - mass planets b and c. (Image courtesy of NASA)

No known object reproduces well the properties of planets b and c. Nevertheless, we find that the spectra and WISE photometry of peculiar and / or young early - T dwarfs reddened by submicron grains made of corundum, iron, enstatite, or forsterite successfully reproduce the SED of these two planets.

Hence, planet b's average orbital distance of around 2.1 AUs places its orbit at around the outer edge of the habitable zone at around.

Results show that planets b and c likely have partially molten rock mantles.

If a small, rocky planet can develop without the interference of planet b, then stable orbits appear to be possible in the inner portion of the habitable zone (Noble et al, 2002, in pdf; and Jones and Sleep, 2003).

Planet b (or 1) has at least 2.53 +0.07 / -0.06 times Jupiter's mass, and it moves around 47 UMa at an average distance of only 2.10 + / - 0.02 AUs (a semi-major axis within the Main Asteroid Belt's orbital distance) in a slightly elliptical orbit (e = 0.032 + / - 0.014) that takes 2.95 years (1,078 + / - 2 days) to complete (Gregory and Fischer, 2010).

Some astronomers have speculated that a tidally heated moon around planet b could have liquid water on its surface.

Planet b's atmosphere evaporating in a comet - like trail with several moons, as imagined by Whatmough.

Subsequent astrometric analysis, however, suggests that «planet b» may have as much as 111 times the mass of Jupiter with an inclination of 0.1 ° from Earth's line of sight (Han et al, 2001, in pdf).

Planet b or A1 is probably a gas giant with a minimum mass around that of Jupiter (shown here with Europa).