Comet Clues

7

2

6

16

14

3

18

12

13

11

20

5

9

19

8

1

15

17

Celestial body with a tail

1 horizontal

Vertical Clues

2
Famous comet visible every 76 years
6
Comet visited by Rosetta spacecraft
7
Comet impact event
8
Tail of ice and dust
9
Stony or metallic celestial body
6
Comet visited by Rosetta spacecraft
12
Comet's orbit type
14
Famous periodic comet
16
Source of comet's light
20
Comet visitation cycle

Horizontal Clues

1
Celestial body with a tail
3
Comet's icy core
2
Comet discovered in 1995
5
Comet's outer shell
11
Periodic comet
13
Comet's trailing part
15
Cometary chunk
17
Spherical cometary region
18
Short-period comet
19
Interstellar comet