[填空题]
The asteroid Icarus, though only a few hundred meters across, orbits the2s - 1z-d(dqy-lzy tzuminqcl7l *e20ad *v (i siq)m t5,,ugnirfg a;krb.3 ( Sun like the planets. Its perii t(qfki,an 53 gurb)mr,g ;.sod is 410 d. What is its mean distance from the Sun? $\times 10^{11}$
