Clue 1:

Beta-9 is the furthest planet from the star.
→ So, Beta-9 = planet 7

Clue 2:

There are three planets between Romulus and Alpha-4.
→ Possible pairs with 3 planets between them:

  • (1 & 5), (2 & 6), (3 & 7), (5 & 1), (6 & 2), (7 & 3)

Clue 3:

There are four planets between Beta-9 and Alpha-4.
We already know Beta-9 = 7, so Alpha-4 must be planet 2
→ (2 and 7 have 4 in between)

Clue 4:

There are four planets between Romulus and Skye.
→ Possible pairs:

  • (1 & 6), (2 & 7), (6 & 1), (7 & 2)

Clue 5:

Dusty is between Remus and Felix.
So:

  • If Felix is at 1 and Remus is at 3, Dusty is at 2.
  • Dusty must be numerically between the other two.

Clue 6:

Felix is closer to the star than Remus.
→ Felix must be on a lower-numbered orbit than Remus.

Using Clue 3 (Alpha-4 = 2) and Clue 1 (Beta-9 = 7)

Confirmed:

  • Alpha-4 = 2
  • Beta-9 = 7

Now Clue 2: 3 between Romulus and Alpha-4 (which is 2)

→ So Romulus must be at position 6 (positions between 2 and 6 are 3: 3, 4, 5)

So far:

  • Beta-9 = 7
  • Alpha-4 = 2
  • Romulus = 6

Clue 4: 4 between Romulus (6) and Skye

→ So Skye = 1 (positions 2, 3, 4, 5 are between 1 and 6)

So far:

  • Beta-9 = 7
  • Alpha-4 = 2
  • Romulus = 6
  • Skye = 1

Clue 6: Felix is closer to the star than Remus

→ Felix < Remus

Clue 5: Dusty is between Remus and Felix

Let’s test combinations:

Try Felix = 3, Dusty = 4, Remus = 5
→ F < D < R ✓
Positions available: 3, 4, 5 (yes, available)

So we try:

  • Felix = 3
  • Dusty = 4
  • Remus = 5

Now assign all:

Planet Number

Name

1

Skye

2

Alpha-4

3

Felix

4

Dusty

5

Remus

6

Romulus

7

Beta-9