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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: 7:48  
clear_day Transit: 11:49  
SunsetSet: 15:50 south
sunny DaytimeWhat's Visible Now?
All Constellations » Hercules » 

57 Herculis

Altitude: 62.6°   Azimuth: 158.0°   Direction: South-South-East

57 Herculis is a giant star in the constellation of Hercules.

57 Herculis visual magnitude is 6.28. Because of its reltive faintness, 57 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 57 Herculis:


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

Altitude: 62.6°
Azimuth: 158.0°
Direction: South-South-East

Celestial coordinates and finder chart of 57 Herculis

57 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 57 Herculis are provided in the following table:

16h 57m 30s
+25° 21’ 10”

The simplified sky map below shows the position of 57 Herculis in the sky:

Finder chart 57 Herculis star
Simplified finder chart for 57 Herculis.

Visibility of 57 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 57 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: 64.6°
Max altitude: 63.9°
Azimuth: 295.4°

Digitized Sky Survey image of 57 Herculis

The image below is a photograph of 57 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 57 Herculis is 0.004 arcsec per year in Right Ascension and 0.013 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 57 Herculis star
DSS2 image of 57 Herculis. The red arrow shows the motion of 57 Herculis during the next 10000 years (0.67 arcmin in Right Ascension and 2.17 arcmin in declination);

Distance of 57 Herculis from the Sun and relative movement

57 Herculis is distant 555.37 light years from the Sun and it is moving far from the Sun at the speed of 9 kilometers per second.

170.36 pc
555.37 ly
9 km/s
0.004 arcsec/year
0.013 arcsec/year

Spectral properties of 57 Herculis

57 Herculis belongs to spectral class G5


The red dot in the diagram below shows where 57 Herculis is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 57 Herculis. Attribution: Richard Powell / CC BY-SA

Alternative designations of 57 Herculis

57 Herculis