How the finish is applied is not what determines the name, i.e., a "burst" doesn't have to be sprayed. It can be done with a cloth pad and stain, ink, dye--you name it.
The OP guitar, I'd call that a sanded burst because you can see where the gradient is created by applying stain to the body and then sanding more here and less there to achieve the burst look.
In case you're wondering, the finish we call a "sunburst" is a relatively new name for a very very old appearance. Hundreds of years ago, violins, violas, etc., all were evenly finished in vegetable or spirit varnish, and over many years of play they took on a weathered look wherein the exposed areas received more wear and the recessed areas received less wear. Really old originals that have not been cleaned do have dark areas under the bridge and fingerboard extension, as well as in the recesses around the sides. Here's a Stradivari.
Beginning in the late 1800s, makers started applying finishes to mimic this 'played-in' look because it conferred the appearance of a fine old instrument. This has stuck for a long time.
When Fender started producing opaque solid-color guitars in the 1950s, Gibson laughed at them. And about a year later, Gibson was offering color choices. BAM!
The OP guitar, I'd call that a sanded burst because you can see where the gradient is created by applying stain to the body and then sanding more here and less there to achieve the burst look.
In case you're wondering, the finish we call a "sunburst" is a relatively new name for a very very old appearance. Hundreds of years ago, violins, violas, etc., all were evenly finished in vegetable or spirit varnish, and over many years of play they took on a weathered look wherein the exposed areas received more wear and the recessed areas received less wear. Really old originals that have not been cleaned do have dark areas under the bridge and fingerboard extension, as well as in the recesses around the sides. Here's a Stradivari.

Beginning in the late 1800s, makers started applying finishes to mimic this 'played-in' look because it conferred the appearance of a fine old instrument. This has stuck for a long time.
When Fender started producing opaque solid-color guitars in the 1950s, Gibson laughed at them. And about a year later, Gibson was offering color choices. BAM!