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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:47  
clear_day Transit: 11:49  
SunsetSet: 15:50 south
wb_twilight Astronomical TwilightWhat's Visible Now?
All Constellations » Hercules » 

107 Herculis

Altitude: 9.9°   Azimuth: 55.5°   Direction: North-East

107 Herculis is a variable main-sequence star in the constellation of Hercules.

107 Herculis visual magnitude is 5.12. Because of its reltive faintness, 107 Herculis should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about 107 Herculis:


107 Herculis is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 9.9°
Azimuth: 55.5°
Direction: North-East

Celestial coordinates and finder chart of 107 Herculis

107 Herculis is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of 107 Herculis are provided in the following table:

18h 21m 01s
+28° 52’ 12”

The simplified sky map below shows the position of 107 Herculis in the sky:

Finder chart 107 Herculis star
Simplified finder chart for 107 Herculis.

Visibility of 107 Herculis from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's 107 Herculis rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 61.1°
Max altitude: 67.4°
Azimuth: 298.9°

Digitized Sky Survey image of 107 Herculis

The image below is a photograph of 107 Herculis from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of 107 Herculis is 0.005 arcsec per year in Right Ascension and 0.05 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 107 Herculis star
DSS2 image of 107 Herculis. The red arrow shows the motion of 107 Herculis during the next 10000 years (0.83 arcmin in Right Ascension and 8.33 arcmin in declination);

Distance of 107 Herculis from the Sun and relative movement

107 Herculis is distant 276.51 light years from the Sun and it is moving towards the Sun at the speed of 30 kilometers per second.

84.82 pc
276.51 ly
-30 km/s
0.005 arcsec/year
0.05 arcsec/year

Spectral properties of 107 Herculis

107 Herculis belongs to spectral class A7 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where 107 Herculis is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 107 Herculis. Attribution: Richard Powell / CC BY-SA

Alternative designations of 107 Herculis

107 Herculis