What spectral class does our sun belong on?

What could the crew of a hot air ballon do to raise the balloon above some trees? Pluto's orbit around the Sun is very different than those of other planets. How is it different? What takes about one month to complete? Is a hot air balloon filled with helium? What was special about the crew of the challenger space shuttle? What is up-up balloon? Is there a buoyant force on objects inside the space shuttle where there is air when it is in orbit? What are the four planet closet to tha sun? Was Zeus conceited? Why cathode rays cast a shadow when an object is placed in their path? What pulled freya the goddesses' chariots? How is called the scientific laboratory that orbits the Earth that is funded and supported primarily by the US and Russia? What is hades sphere of influence? What is the only US state to allow its residents to cast absentee ballots from outer space? What is the name for an event where a large number of small meteoroids enter earth's atmosphere in a short period of time? What is the french word of sunset? How do we think Earth's Moon formed? What is the darkest object that moves in space? Why does the sun remain stable over time? What is the synomym of funnel cloud?