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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
SunriseRise: 6:04  
clear_day Transit: 12:06  
SunsetSet: 18:09
sleep NighttimeWhat's Visible Now?
All Constellations » Scorpius » 

HR6657

Altitude: -0.7°   Azimuth: 154.1°   Direction: South-South-East

HR6657 is a main-sequence star in the constellation of Scorpius.

HR6657 visual magnitude is 6.17. Because of its reltive faintness, HR6657 should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of HR6657 is 0.005 arcsec per year in Right Ascension and -0.001 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR6657 star
DSS2 image of HR6657. The red arrow shows the motion of HR6657 during the next 100000 years (8.33 arcmin in Right Ascension and -1.67 arcmin in declination);

Key facts about HR6657

6.17
Main-sequence

HR6657 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -0.7°
Azimuth: 154.1°
Direction: South-South-East

Celestial coordinates and finder chart of HR6657

HR6657 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR6657 are provided in the following table:

17h 53m 19s
-34° 43’ 50”
355.86°
-4.38°
Scorpius

The simplified sky map below shows the position of HR6657 in the sky:

Finder chart HR6657 star
Simplified finder chart for HR6657.

Visibility of HR6657 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 HR6657 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: 124.7°
Max altitude: 3.8°
Azimuth: 235.3°

Distance of HR6657 from the Sun and relative movement

HR6657 is distant 825.32 light years from the Sun and it is moving towards the Sun at the speed of 12 kilometers per second.

253.16 pc
825.32 ly
-12 km/s
0.005 arcsec/year
-0.001 arcsec/year

Spectral properties of HR6657

HR6657 belongs to spectral class B8 and has a luminosity class of V corresponding to a main-sequence star.

-0.85
B8V
10516K

The red dot in the diagram below shows where HR6657 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR6657. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR6657

SAO209411
SAO209411