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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: 7:44  
clear_day Transit: 11:48  
SunsetSet: 15:51 south
sunny DaytimeWhat's Visible Now?
All Constellations » Hercules » 

93 Herculis

Altitude: 24.9°   Azimuth: 94.2°   Direction: East

93 Herculis is a hypergiant star in the constellation of Hercules.

93 Herculis visual magnitude is 4.67. Because of its moderate brightness, 93 Herculis should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The table below summarizes the key facts about 93 Herculis:


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

Altitude: 24.9°
Azimuth: 94.2°
Direction: East

Celestial coordinates and finder chart of 93 Herculis

93 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. Celestial coordinates for the J2000 equinox as well as galactic coordinates of 93 Herculis are provided in the following table:

18h 00m 03s
+16° 45’ 02”

The simplified sky map below shows the position of 93 Herculis in the sky:

Finder chart 93 Herculis star
Simplified finder chart for 93 Herculis.

Visibility of 93 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 93 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: 73.2°
Max altitude: 55.3°
Azimuth: 286.8°

Digitized Sky Survey image of 93 Herculis

The image below is a photograph of 93 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 93 Herculis is -0.007 arcsec per year in Right Ascension and -0.01 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 93 Herculis star
DSS2 image of 93 Herculis. The red arrow shows the motion of 93 Herculis during the next 10000 years (-1.17 arcmin in Right Ascension and -1.67 arcmin in declination);

Distance of 93 Herculis from the Sun and relative movement

93 Herculis is distant 655.94 light years from the Sun and it is moving towards the Sun at the speed of 24 kilometers per second.

201.21 pc
655.94 ly
-24 km/s
-0.007 arcsec/year
-0.01 arcsec/year

Spectral properties of 93 Herculis

93 Herculis belongs to spectral class K0 and has a luminosity class of II corresponding to a hypergiant star.


The red dot in the diagram below shows where 93 Herculis is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 93 Herculis. Attribution: Richard Powell / CC BY-SA

Alternative designations of 93 Herculis

93 Herculis