Table:
0
A
B
C
D
E
F
1
Star (Pismis24-#)
Spectral type
Magnitude (M bol )
Temperature (K)
Radius (R ☉ )
Mass (M ☉ )
2
1NE
O3.5 If *
−10.0
42000
17
74
3
1SW
O4 III
−9.8
41500
16
66
4
2
O5.5 V(f)
−8.9
40000
12
43
5
3
O8 V
−7.7
33400
9
25
6
10
O9 V
−7.2
31500
8
20
7
12
B1 V
−5.3
30000
4
11
8
13
O6.5 III((f))
−8.6
35600
12
35
9
15
O8 V
−7.8
33400
10
25
10
16
O7.5 V
−9.0
34000
16
38
11
17
O3.5 III
−10.1
42700
17
78
12
18
B0.5 V
−6.4
30000
6
15

Questions and formulas:
Question: What is the smallest possible radius?
Formula: MIN(E1)
Formula2: MIN(E2:E12)
Level: easy
Question: What are all the spectral types for star mismis24-# is 1sw?
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:F1,A1="1SW"),2))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:F12,A2:A12="1SW"),2))
Level: medium
Question: If a radius is 10, what  is the lowest possible mass?
Formula: MIN(FILTER(F1, E1=10))
Formula2: MIN(FILTER(F2:F12, E2:E12=10))
Level: easy