A planet beyond the solar system that has been compared to Spock's homeworld Vulcan in the Star Trek franchise may have been nothing more than an illusion caused by a jittery star. " was proposed to orbit a star called 40 Eridani A or"Keid," which is part of aisn't the result of an orbiting world tugging on it at all.
The radial velocity method uses tiny shifts in the light of a star as an orbiting planet gravitationally tugs on it. As a star is pulled away from Earth, the wavelength of the light it emits is stretched, causing it to move to the"red end" of the electromagnetic spectrum, a phenomenon called".
An illustration showing the Doppler effect. As the ambulance speeds away from the pedestrian the sound is stretched and is low frequency. As it approaches the soundwaves are compressed and the siren is high-frequency, as these exert a larger gravitational pull on their stars and thus generate a more pronounced shift in the starlight from that stellar body. However, it is less robust for detecting planets with masses lower than that of Jupiter, the solar system's most massive planet.
An illustration of HD 26965 b – often compared to the fictional"Vulcan" in the Star Trek universe that appears to have been an illusion was delivered by NEID, the name of which rhymes with"fluid." NEID is an instrument that uses radial velocity to measure the motion of nearby stars with extreme precision.
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