#hot jupiter

[shpepyao]

please can humanity achieve more powerful tech to explore outer space, I need more cool exoplanets to ponder and make out of them anthro critters

[colorpicked-pride-flags-jwst]

Bisexual flag colorpicked from artist’s impression of hot Jupiter PSR J2322-2650b and the pulsar it is orbiting

[whirligig-girl]

The Boiling Beast II nears close approach of Ember, the innermost planet of the Zwo-Nmu system. Its crew of slimegirl astronauts will record careful measurements of the magnetic field, exospheric spectrum, atmosphere probes, and weather patterns on their multiple passes by the planet, before using it as a gravity slingshot to get back to Omen and then safely back home to Gymnome.

Ember is a hot ice giant, so named for its red appearance when seen in the skies of Gymnome, due to how low in the sky it is usually seen.

Telescopic observations of the planet Ember are difficult because it is always close to Zwo-Nmu (the sun), which makes it dangerous to aim near with normal instruments. When Zwo-Nmu sets, Ember is not far behind, and by that time it's so low in the sky as to be spoiled by the effects of rayleigh scattering, atmospheric dispersion, and atmospheric turbulence.

The Boiling Beast 1A and 1B were twin biorobotic probes utilizing bio-neural circuitry (see footnote 1), mostly designed to test the sunshade system for Boiling Beast II. 1A was a stellar probe, and 1B actually made flybys of Ember.

The planet's distance from its star is less than a third of the distance between the Sun and Mercury. The spacecraft must be protected from the instellation by a large sunshield, which keeps almost the entire spacecraft in its shadow. Additional cooling is provided by heat radiators on the far end of the vessel, near the solar powerplant.

The solar powerplant comprises a liquid mercury turbine powered by eight parabolic reflectors. These extend past the sunshield at first, but as the spacecraft gets closer and closer to the Sun, the reflectors are retracted one by one. During the closest approaches to the Sun, even the last reflector is retracted, and the vessel must run on battery power only.

On Gymnome, a computer is a job that a person can do extremely well. As a result digital machine computers are trailing behind compared to human technological development, but with the proper training a gymnomi computer can do far better than any machine computer. Machine computers on Gymnome come in two types: electronic, and bio-neural. Electronic computers don't scale down well, but eventually are developed into institutional supercomputers which powered the information age on Gymnome. Bio-neural circuitry is used for miniaturization of robotics, at the expense of requiring expensive and bulky support equipment to keep the organism alive. Robotic space probes on Gymnome often rely on bio-neural circuitry when analog automation is not up to the task. The Boiling Beast 1 probes probably could have used analog automation, but the bio-neural circuitry was being used as a gymnomi life support analog.

[progradevector]

Transit of Exoplanet TrES-1b From My Backyard

It might seem silly to suggest that you can see a planet many hundreds of lightyears away orbiting another star from your own house with off-the-shelf equipment, but amateur astronomers like myself have been doing it for over a decade! How? Using the same method professionals do - specifically the transit method. Modern commercial CCD and CMOS cameras are sensitive enough to detect the minuscule change in brightness as an exoplanet passes between its parent star and us. And it is a tiny drop in brightness, between 10 and 20 parts per thousand for the largest of planets.

It's these large, close-in planets that are accessible to amateur astronomers, thanks to the relatively deep transits and fast orbits that are easily detectable and can be fully captured in a single night of imaging. This is one of my most recent observations of such a transit. The planet in question is TrES-1b, a world a little larger than Jupiter in a scorchingly-tight orbit that lasts just 3 days. Such planets are called hot Jupiters for obvious reasons. They are large, low-density volatile-rich worlds whose proximity to their star heats their atmospheres to many hundreds to thousands of degrees. In the case of TrES-1b, the average temperature was directly measured with the Spitzer infrared space telescope to be Over 786 °C.

Using the software package AstroImageJ, I produced a lightcurve showing the change in brightness over the course of the night. It is readily apparent when the transit begins, as the star's light drops off and then stabilizes. There's a lot that can be inferred from just this portion of the plot, but the primary information that can be gleaned is the planet's radius (from the depth of the dip) and the length of the orbit (from the frequency of transit events and the duration of each transit). The field image on the right shows the target star itself (circled in green) and the comparison stars (in red) used as references to measure the brightness against.

[zespaceblog]

Hotter than Hell

There's Hot Jupiters, then there's HD 149026b, some call it Smertrios. The temperature of the Saturn sized giant is three times that of the hottest planet in our solar system (Venus), at a cool 1,425'c.

But with JWST observations now in, it's uncovered a slight mystery. Normally, the % of metals (more complex elements than hydrogen and helium) is lower the higher the mass, so the results of JWST were a little surprising, finding much larger concentrations of the more complex Carbon and Oxygen than would fit the expectation.

The star HD 149026 is an F type star, slightly larger in mass than our Sun, but the planet orbits very close in completing an entire year (full orbit) every 2.9 Earth days.

The composition of the planet has got scientists wondering if the contents of the accretion disk when the star was forming had much higher concentrations of heavier elements than would ordinarily be the case, and hints to the diverse range even amongst gas giants and specifically hot Jupiter typed planets.

Source:

James Webb Space Telescope finds a 'hot Jupiter' exoplanet that defies expectations

The exoplanet Smertrios has a surprising abundance of heavy elements in its atmosphere.

[netmassimo]

An article published in the journal 'Nature' reports a study on the exoplanet cataloged as TIC 241249530 b which labels it as a progenitor o

An article published in the journal "Nature" reports a study on the exoplanet cataloged as TIC 241249530 b which labels it as a progenitor of a hot Jupiter. A team of researchers used various telescopes to study TIC 241249530 b and try to understand its characteristics and evolution. This gas giant has an extremely eccentric orbit, meaning it's extremely elongated, which could change greatly as time passes.

[siryl]

"Tempest of Fire" by Eduardo Tarasca.

[phoenix-flight-explorers]

The luxurious tour vessel "Magical Mystery Tour" flown by Commander Stef Lennon visiting some spectacular locales within civilized space:

1) Radioactive Green, a green gas giant only 300 LY from Sol

2) So-yeon Dock orbiting a terraformed world

3) The purple gas giant in Moanza, described by the locals as being the dwelling place of the Great Spirit that protects them

4) A pristine Earth-like world in a system of multiple life-supporting planets

5) A "hot Jupiter" orbiting extremely closely to a brown dwarf

6) A safari water world in Aapelinja, home to some of the Galaxy's most astounding megafauna

7) Water world orbiting the barycenter of a close binary pair of stars

8) Ringed ice planet in Dassareti, famous for recent reports of unusual readings

9) The soft glow of a brown dwarf

10) Canyon flight on the icy moon of a gas giant