Table:
0
A
B
C
D
E
F
G
H
I
1
Star
Stellar classification
Distance from Earth ( ly )
Constellation
Dust (or Debris; Temperature (K)
System
Dust (or Debris) Location (AU)
Cool Dust > 10 AU
Stellar Age (Myr)
2
η Corvi
F2V
59
Corvus
> 80
Unary
< 3.5
yes
1500
3
HD 113766
F3V
424
Centaurus
~440
Binary
1.8
yes
~10-16
4
BD +20307
G0V
~300
Aries
> 100
Binary
1
no
> 1000
5
HD 72905
G1.5Vb
46.5
Ursa Major
unknown
Unary
0.23
yes
400
6
HD 12039
G3-5V
138
Cetus
110
close stellar companion
4-6
no
7.5-8
7
HD 69830
K0V
40.6
Puppis
unknown
3 Neptune planets < 1 AU
1
no
2000 - 5000

Questions and formulas:
Question: Name number of stellar classification for 3 neptune planets < 1 au
Formula: ROWS(UNIQUE(FILTER(B1, F1="3 Neptune planets < 1 AU")))
Formula2: ROWS(UNIQUE(FILTER(B2:B7, F2:F7="3 Neptune planets < 1 AU")))
Level: medium
Question: Name the system for aries
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:I1,D1="Aries"),6))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:I7,D2:D7="Aries"),6))
Level: medium
Question: Name the stellar age for f3v
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:I1,B1="F3V"),9))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:I7,B2:B7="F3V"),9))
Level: medium
Question: Name the dust for star being hd 69830
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:I1,A1="HD 69830"),7))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:I7,A2:A7="HD 69830"),7))
Level: medium
Question: Name the dust for star being η corvi
Formula: UNIQUE(CHOOSECOLS(FILTER(A1:I1,A1="η Corvi"),5))
Formula2: UNIQUE(CHOOSECOLS(FILTER(A2:I7,A2:A7="η Corvi"),5))
Level: medium