There's not a whole lot of difference at that price point. There's also not a whole to "shooting landscape mostly with sunrise/sunset & beach scenes as well as some of friends and family." (Although, I would probably recommend a 50mm f1.8 prime lens for sunrise/sunset pics on a budget. Both Canon and Nikon have one for around $100.) Astrophotography ("the moon and stars"), however, is very difficult to do on a budget. So personally, I'd forgo a DSLR and astrophotography and buy a large sensor compact -- Canon G7 X, Sony RX100, Panasonic LX100, etc. -- for all your other needs. (Full disclosure: I own a Canon G7 X and previously owned a Sony RX100 (original model).)
As for mirrorless cameras: generally, the camera bodies are smaller, but the larger sensor (APS-C and above) bodies especially lose their size advantage when you add a long telephoto and/or bright f2.8 or brighter lens. (Full disclosure: I own a Panasonic GH2 and Olympus E-PL5.)
HTH - Mark
I'm looking to buy my first DSLR camera. There seem to be a lot of black friday sales so I thought I'd take advantage and buy a camera this weekend. My budget is $600 or less and i want to stick with Canon or Nikon. I enjoy shooting landscape mostly with sunrise/sunset & beach scenes as well as some of friends and family. I would like something that is decent in low light because I'm interested in learning to photograph the moon and stars.
I've found the following that fit my price range:
1. Canon EOS Rebel T3i with EF-S 18-55mm f/3.5-5.6 IS and EF 75-300mm f/4-5.6 III Lenses ($500 best buy)
2. Canon EOS Rebel T5 with 18-55mm Lens, Extra 75-300mm Lens ($450 best buy)
3. Canon EOS T5i refurbished with 18-55mm IS STM Lens Kit ($510)
4. Nikon D3300 with 18-55mm Lens ($500 target)
5. Nikon D3200 with 18-55mm and 55-200mm Lenses ($500 best buy)
6. Nikon D5200 refurbished with 18-55mm VR Kit Lens ($500)
Any suggestions would be appreciated! Also, what are your thoughts on mirrorless cameras?

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