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Walker has already documented a lot of sky. The Christmas Tree Cluster. The Cone Nebula. The Pinwheel and Whirlpool galaxies. A wide view of Horsehead Nebula with a stunning splash of red and amazing clarity.
"The Witch Head Nebula turned out really well," he says. He clicks on his phone, puzzled. "Where'd that go?" he says. He keeps clicking. "Here it is."
He has imaged the Andromeda and Sombrero galaxies, the Sagittarius Triplets and the Rosette Nebula. The list goes on.
"The thing I like about astronomy is being outside at night and seeing the stars in a dark sky," Walker says. "It's very surreal. It makes you feel small."
These days he is excited because galaxy season is in full swing. "You know that dark line you see in the sky at night? You're looking through the darkest part of the Milky Way so you can see deeper into the universe now than at any other time of the year," Walker says. "The center of the Milky Way is where all the action is now. You can squeeze 200 galaxies into one picture if you do it right."
He has new gear to break in—a $30,000 telescope and a $13,000 camera. His to-do list of targets includes Antares, a supergiant star, and M16, a diffuse emission nebula.
He's got a shot, no doubt about it.