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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: 6:46  
clear_day Transit: 12:11  
SunsetSet: 17:36
wb_twilight Nautical TwilightWhat's Visible Now?
All Constellations » Scorpius » 

HR6660

Altitude: -69.5°   Azimuth: 318.0°   Direction: North-West

HR6660 is a main-sequence star in the constellation of Scorpius.

HR6660 visual magnitude is 6.38. Because of its reltive faintness, HR6660 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 HR6660 is 0.009 arcsec per year in Right Ascension and -0.003 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR6660 star
DSS2 image of HR6660. The red arrow shows the motion of HR6660 during the next 100000 years (15.00 arcmin in Right Ascension and -5.00 arcmin in declination);

Key facts about HR6660

6.38
Main-sequence

HR6660 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -69.5°
Azimuth: 318.0°
Direction: North-West

Celestial coordinates and finder chart of HR6660

HR6660 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 HR6660 are provided in the following table:

17h 53m 45s
-34° 47’ 08”
355.86°
-4.48°
Scorpius

The simplified sky map below shows the position of HR6660 in the sky:

Finder chart HR6660 star
Simplified finder chart for HR6660.

Visibility of HR6660 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 HR6660 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: 124.8°
Max altitude: 3.7°
Azimuth: 235.2°

Spectral properties of HR6660

HR6660 belongs to spectral class B9 and has a luminosity class of V corresponding to a main-sequence star.

B9V
10125K

Alternative designations of HR6660

SAO209425
SAO209425