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public LocationGreenwich, UK
TimezoneEurope/London
Sunrise: 5:15 
Transit: 13:06 
Sunset: 20:56
wb_twilight   (Civil Twilight)   What's Visible Now?
All Constellations » Eridanus » 

66 Eridani

Above the horizon.  Rise: 4:18 | Tran: 9:53 | Set: 15:28
Alt: 5.86°   Az: 105.01°   Direction: East-South-East

66 Eridani is a variable and double main-sequence star of spectral class B9 in the constellation of Eridanus.

66 Eridani visual magnitude is 5.12. Because of its faintness, 66 Eridani is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

Image of 66 Eridani star
DSS2 image of 66 Eridani. The red arrow shows the motion of 66 Eridani during the next 10000 years (2.67 arcmin in Right Ascension and 1.33 arcmin in declination);

Celestial Coordinates

Apparent

05h 07m 58s
-04° 37’ 25”
19h 01m 43s
00h 09m 41s

J2000

05h 06m 45s
-04° 39’ 18”

Galactic Coordinates

204.78°
-25.35°

Finder Chart

Finder chart 66 Eridani star
Simplified finder chart for 66 Eridani.

Magnitude, Color, Spectral Class

5.12
Main-sequence

0.45
B9V
10941K

The red dot in the diagram below shows where 66 Eridani is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 66 Eridani. Attribution: Richard Powell / CC BY-SA

Star System Properties

66 Eridani 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 66 Eridani double sysyem:

5.12
10.52
5.4
52.8 arcsec

Distance, Radial Speed, Proper Motion

66 Eridani is distant 279.83 light years from the Sun and it is moving far from the Sun at the speed of 31 kilometers per second.

85.84
279.83
31 km/s
0.016 arcsec/y
0.008"/y

Alternative Designations

SAO131777
SAO131777

Visibility from Your Location

Today's 66 Eridani rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 94.6°
Max altitude: 33.9°
Azimuth: 265.4°