I'm looking to get a professional camera. Well as close to "professional" as I can get. My budget is about $1000. A few things that I would use it for is Astrophotography, and mountain photography. It would also be used by my girlfriend for her Salon before and after photos. I'm looking for as high of a zoom as I can afford, with the ability to take long exposures and with being also able to get close ups of hair.

I know almost nothing about modern cameras. I dabbled in high school with the school's cameras and enjoyed it. So, if this isn't possible with just one camera and I would need multiple, just let me know. Also any lenses that would help and be starter friendly would be very much appreciated.