SNR

Age (year)

Distance (pc)

ISM no. density (cm⁻³)

Radius (pc)

Velocity (Km∙s⁻¹)

G1.9+0.3

100

8500 [14]

0.03 [14]

2.2 - 4.7 [14]

14000 [14]

Kepler

410

5000 - 6400 [15]

0.1 [16]

2.5 - 3.8 [15]

1550 - 2000 [17]

Tycho

442

1500 - 3100 [18]

0.2 [18]

3.7 [18]

1500 - 2800 [18]

1006

1000

2180 ± 80 [19]

0.1 [15]

7.1 - 7.5 [19]

2890 ± 100 [19]

SN 1987A

26

51000 [20]

10 [21]

0.39 [20]

4000 [21]

Cas A

358

3400 [22]

1.5 [22]

2.6 [22]

1000 - 1500 [22]

Crab

958

2000 [23]

0.5 [23]

3.4 [24]

1400 - 1500 [25]

Cygnus loop

17000

770 [26]

0.1 - 0.2 [27]

21.5 - 27 [28]

200 - 300 [29]

IC443

30000

1500 [30]

10 - 20 [30]

9.6 [31] - 15 [32]

65 - 100 [30]