This irregular planetary (Figure 7.5), magnitude 11, 140" x 70", with a 16.5 magnitude central star, derives its name from the casually observed similarities between it and the much larger Dumbbell Nebula (M27) in Vulpecula. Although it is often described as
one of the least conspicuous of the Messier objects, it is still quite easy to spot from our city lairs, and with a narrowband filter it becomes quite a striking sight. Time exposures reveal a complex structure with loops, altogether different to its larger namesake.
Was this article helpful?
The use of dumbbells gives you a much more comprehensive strengthening effect because the workout engages your stabilizer muscles, in addition to the muscle you may be pin-pointing. Without all of the belts and artificial stabilizers of a machine, you also engage your core muscles, which are your body's natural stabilizers.