Stars of which type are the smallest in diameter?

white dwarfs
brown dwarfs
red dwarfs
neutron stars
A typical neutron star has a mass between about 1 and 2 solar masses, with a cor­re­spond­ing radius of just about 12 km. Some of them (pul­sars), rotate as quickly as once per 33-mil­lisec­ond, so their radius must be very small not to break the light speed limit at the surface level.

Answers distribution

white dwarfs
brown dwarfs
red dwarfs
neutron stars
answers
flagItaly
15%
0%
0%
85%
20
flagFrance
18%
4%
4%
72%
22
flagGermany
21%
1%
7%
69%
97
flagthe United Kingdom
19%
6%
11%
62%
206
flagSpain
23%
0%
15%
61%
13
flagPoland
22%
6%
11%
59%
5967
flagCanada
26%
7%
3%
57%
26
flagthe Netherlands
21%
0%
21%
57%
14
flagthe Philippines
27%
9%
9%
54%
22
flagUnknown
30%
3%
13%
53%
30
flagthe United Arab Emirates
30%
7%
7%
53%
13
flagthe United States
26%
9%
13%
50%
400
flagIndia
24%
13%
12%
48%
190
flagIndonesia
38%
0%
15%
46%
13
flagPakistan
41%
5%
17%
35%
17
flagNorway
47%
5%
11%
35%
17
flagAustralia
50%
4%
13%
31%
22
flagRepublic of Ireland
35%
11%
23%
29%
17

Gender

men60%
women57%
white dwarfs
22%
21%
brown dwarfs
5%
5%
red dwarfs
11%
14%
neutron stars
60%
57%

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Stars of which type are the smallest in diameter?
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Author: Hà Linh Chi
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