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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: 5:51  
clear_day Transit: 12:57  
SunsetSet: 20:04
sunny DaytimeWhat's Visible Now?
All Constellations » Boötes » 


Altitude: -5.0°   Azimuth: 56.9°   Direction: East-North-East

HR5550 is a double main-sequence star in the constellation of Boötes.

HR5550 visual magnitude is 6.4. Because of its reltive faintness, HR5550 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 HR5550 is -0.022 arcsec per year in Right Ascension and 0.009 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR5550 star
DSS2 image of HR5550. The red arrow shows the motion of HR5550 during the next 10000 years (-3.67 arcmin in Right Ascension and 1.50 arcmin in declination);

Key facts about HR5550


HR5550 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -5.0°
Azimuth: 56.9°
Direction: East-North-East

Celestial coordinates and finder chart of HR5550

HR5550 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 HR5550 are provided in the following table:

14h 53m 23s
+15° 42’ 15”

The simplified sky map below shows the position of HR5550 in the sky:

Finder chart HR5550 star
Simplified finder chart for HR5550.

Visibility of HR5550 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 HR5550 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: 74.3°
Max altitude: 54.2°
Azimuth: 285.7°

Distance of HR5550 from the Sun and relative movement

HR5550 is distant 159.80 light years from the Sun and it is moving far from the Sun at the speed of 21 kilometers per second.

49.02 pc
159.80 ly
21 km/s
-0.022 arcsec/year
0.009 arcsec/year

Spectral properties of HR5550

HR5550 belongs to spectral class F9 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR5550 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR5550. Attribution: Richard Powell / CC BY-SA

HR5550 star system properties

HR5550 is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the HR5550 double sysyem:

1.5 arcsec

Alternative designations of HR5550