Table:
text: NGC 6357
Pismis 24
Prominent stars in Pismis 24
Star_Pismis24_ Spectral_type Magnitude_M_bol_ Temperature_K Radius_R_ Mass_M_
1NE O3.5 If * −10.0 42000 17 74
1SW O4 III −9.8 41500 16 66
2 O5.5 V(f) −8.9 40000 12 43
3 O8 V −7.7 33400 9 25
10 O9 V −7.2 31500 8 20
12 B1 V −5.3 30000 4 11
13 O6.5 III((f)) −8.6 35600 12 35
15 O8 V −7.8 33400 10 25
16 O7.5 V −9.0 34000 16 38
17 O3.5 III −10.1 42700 17 78
18 B0.5 V −6.4 30000 6 15

Question: What is the smallest possible radius for NGC 6357?

Question: What spectral types are there under NGC 6357 for the star mismis24-# is 1sw ?

Question: If a radius is 10 what is the lowest possible mass for NGC 6357?