The newly found exoplanet therefore sets a new record as the smallest planet discovered around a solar-type star
amp;nbsp;"I see no problem with there being more than 15 Earth masses of accretable material around a solar-type star
," Christiansen said in the Princeton statement.
The heat from a typical young solar-type star
means that the water within a protoplanetary disc is gaseous up to distances of around 3 au from the star less than 3 times the average distance between the Earth and the Sun or around 450 million kilometres.
He said it works better than our own solar-type star
without a companion and there is a plenty of room for several habitable planets and these may be places where many worlds in system could be habitable.
The results advance our understanding of how stars generate their magnetic fields and confirm that the sun is indeed a solar-type star
The abundant amount of oxygen and absence of hydrogen indicate that the destroyed star was a white dwarf, the end phase of a solar-type star
that has burned its hydrogen leaving a high concentration of oxygen.
For an Earth-size planet transiting a solar-type star
, the change in brightness is less than 1/100 of 1 percent.
Tycho G, as she called it, is a solar-type star
slightly offset from the remnant's center (S&T: February 2005, page 22).
The first exoplanet around a solar-type star
, discovered by Michel Mayor and Didier Queloz in 1995, is an excellent example of the former.
Previously known four-planet systems exist around the solar-type star
55 Cancri and the pulsar B1257+12.
It has already produced a "movie" of star-spots being carried around the young, solar-type star
A classic example of a secular resonance can be found in Upsilon Andromedae, which will be forever enshrined in history books as the first known multiple-planet system around a solar-type star
other than the Sun.