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public LocationGreenwich, UK
TimezoneEurope/London
Sunrise: 4:57 
Transit: 13:04 
Sunset: 21:10
wb_twilight   (Civil Twilight)   What's Visible Now?
All Constellations » Hercules » 

70 Herculis

Above the horizon.  Rise: 14:38 | Tran: 22:55 | Set: 7:16
Altitude: 57.2°   Azimuth: 136.0°   Direction: South-East

70 Herculis is a multiple main-sequence star of spectral class A2 in the constellation of Hercules.

70 Herculis visual magnitude is 5.12. Because of its faintness, 70 Herculis 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.

70 Herculis is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year.

Image of 70 Herculis star
DSS2 image of 70 Herculis. The red arrow shows the motion of 70 Herculis during the next 10000 years (-3.67 arcmin in Right Ascension and 0.33 arcmin in declination);

Apparent Coordinates

17h 21m 54s
+24° 28’ 35”

J2000 Coordinates

17h 20m 54s
+24° 29’ 57”

Galactic Coordinates

46.93°
30.05°

Finder Chart

Finder chart 70 Herculis star
Simplified finder chart for 70 Herculis.

Magnitude, Color, Spectral Class

5.12
Main-sequence

-0.64
A2V
10516K

The red dot in the diagram below shows where 70 Herculis is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 70 Herculis. Attribution: Richard Powell / CC BY-SA

Star System Properties

70 Herculis is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the 70 Herculis double sysyem:

5.12
8.62
3.5
222.9 arcsec

Distance, Radial Speed, Proper Motion

70 Herculis is distant 462.41 light years from the Sun and it is moving towards the Sun at the speed of 18 kilometers per second.

141.84 pc
462.41 ly
-18 km/s
-0.022 arcsec/y
0.002 "/y

Alternative Designations

70 Herculis
SAO85021
SAO85021

Visibility from Your Location

Today's 70 Herculis rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 65.5°
Max altitude: 63.0°
Azimuth: 294.5°