As with many images of astronomical objects, some of the Milky Way’s stars are found in the foreground. They are easily distinguishable because of their cross shape which is an artifact of the telescope being used. Likewise, throughout the image you’ll also find distant background galaxies. Most of them are reddish in color and they are much further away than NGC 13000. The bottom left quadrant of the image contains several such galaxies.
Of course, one of the most prominent features of this galaxy are its two impressive spiral arms. These arms contain the galaxy’s youngest and hottest stars, as well as many star clusters (several of these star clusters can be found at near the base of the top spiral, just inside of the center-right edge of the picture). In addition, the dark lines throughout the galaxy are its dust lanes. Here, the dust is dense enough to block background starlight.
The bar of stars is the second part of this galaxy, these stars are much older and cooler than the stars in the spiral arms. If you look closely at the galactic nucleus, found right in the center of the bar, you’ll actually see a second spiral. This spiral within a spiral structure is commonly seen in galaxies with large bars.