  A steady-state magneto-optical trap (MOT) of fermionic strontium atoms
operating on the 7.5 kHz-wide ${^1\mathrm{S}_0} - {^3\mathrm{P}_1}$ transition
is demonstrated. This MOT features $8.4 \times 10^{7}$ atoms, a loading rate of
$1.3\times 10^{7}$atoms/s, and an average temperature of 12 $\mu$K. These
parameters make it well suited to serve as a source of atoms for
continuous-wave superradiant lasers operating on strontium's mHz-wide clock
transition. Such lasers have only been demonstrated using pulsed Sr sources,
limiting their range of applications. Our MOT makes an important step toward
continuous operation of these devices, paving the way for continuous-wave
active optical clocks.
