Year

Constellation

Visibility period

Apparent visual magnitude (brightness)

Distance, ly

Place of observation

185

Centaurus

>20 months

from −2 to −8

3000 - 8000

China, Korea

393

Scorpios

8 months

From 0 to −3

4000 - 34,000

China

1006

Lupus

>3 years

from −7 to −9

7000

China, Japan, Egypt, Khwarezm, Iraq, Morocco, Yemen, Switzerland

1054

Taurus

21 months

−6

6000 - 7000

China, Japan, Near East

1181

Cassiopeia

6 months

From 0 to −1

6500 - 8500

China, Japan

1572

Cassiopeia

18 months

−4

7500 - 10,000

China, Korea, Europe

1604

Ophiuchus

12 months

−3

20,000

China, Korea, India, Europe