In Evidence
Other stars in Perseus
- Mirfak
- Algol
- Ī¶ Persei
- Īµ Persei
- Ī³ Persei
- Ī“ Persei
- Ļ Persei
- Miram
- Ī½ Persei
- Misam
- Atik
- Ļ Persei
- 48 Persei
- Menkib
- Ī¹ Persei
- Ļ Persei
- Īø Persei
- Ī¼ Persei
- 16 Persei
- Ļ Persei
- 58 Persei
- Ī» Persei
- Ļ Persei
- 17 Persei
- HR1324
- Ļ Persei
- 34 Persei
- Ļ Persei
- 52 Persei
- HR918
- HR991
- 53 Persei
- HR1533
- 12 Persei
- 24 Persei
- 54 Persei
- 32 Persei
- 40 Persei
- HR1034
- HR969
- 31 Persei
- 4 Persei
- 21 Persei
- 42 Persei
- 29 Persei
- 9 Persei
- HR1390
- HR890
- 43 Persei
- HR1011
- 59 Persei
- 36 Persei
- 20 Persei
- HR1207
- 14 Persei
- HR1330
- HR1063
- HR885
- 30 Persei
- HR1215
- 50 Persei
- 1 Persei
- HR1333
- HR1113
- HR1037
- HR1133
- HR1041
- HR1019
- HR1176
- HR1141
- HR618
- HR1482
- 3 Persei
- HR1286
- 55 Persei
- 8 Persei
- HR1198
- 56 Persei
- HR1191
- 11 Persei
- HR964
- 2 Persei
- HR1078
- HR1051
- HR526
- HR787
- HR1493
- HR842
- HR886
- HR529
- HR1074
- HR956
- HR1337
- HR1001
- HR986
- HR1514
- 7 Persei
- HR1489
- HR1170
- HR865
- HR876
- HR923
- HR1127
- HR978
- HR966
- HR1500
- HR1029
- 49 Persei
- 57 Persei
- HR1209
- HR1130
- HR920
- HR894
- HR1160
- HR950
- HR1344
- HR973
- HR1419
- HR864
- HR1328
- HR1371
- HR1047
- HR819
- HR1164
- HR1197
- HR976
- HR825
- 10 Persei
- HR849
- HR538
- HR1424
- HR690
- HR1056
- HR820
- HR1226
- HR975
- HR621
- HR930
- HR949
- HR846
- 5 Persei
- HR1229
- HR470
- HR1059
- HR933
- HR1072
- HR1234
- HR1097
- HR641
- HR831
- HR1301
- HR540
- HR979
- HR654
- HR792
- HR1020
- HR1026
- HR716
- HR1223
- HR1163
- HR891
40 Persei
40 Persei is a double hypergiant star of spectral class B0 in the constellation of Perseus.
40 Persei visual magnitude is 4.97. Because of its moderate brightness, 40 Persei is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.
Celestial Coordinates
Apparent
J2000
Galactic Coordinates
Finder Chart
Magnitude, Color, Spectral Class
The red dot in the diagram below shows where 40 Persei is situated in the HertzsprungāRussell diagram.
Star System Properties
40 Persei is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the 40 Persei double sysyem:
Distance, Radial Speed, Proper Motion
40 Persei is distant 923.51 light years from the Sun and it is moving far from the Sun at the speed of 20 kilometers per second.
Alternative Designations
Visibility from Your Location
Today's 40 Persei rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):