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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: 6:38  
clear_day Transit: 12:10  
SunsetSet: 17:43
sleep NighttimeWhat's Visible Now?
All Constellations » Auriga » 


Altitude: 47.3°   Azimuth: 283.9°   Direction: West-North-West

HR1550 is a giant star in the constellation of Auriga.

HR1550 visual magnitude is 5.71. Because of its reltive faintness, HR1550 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 HR1550 is -0.006 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 HR1550 star
DSS2 image of HR1550. The red arrow shows the motion of HR1550 during the next 100000 years (-10.00 arcmin in Right Ascension and -1.67 arcmin in declination);

Key facts about HR1550


HR1550 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 47.3°
Azimuth: 283.9°
Direction: West-North-West

Celestial coordinates and finder chart of HR1550

HR1550 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 HR1550 are provided in the following table:

04h 52m 47s
+42° 35’ 12”

The simplified sky map below shows the position of HR1550 in the sky:

Finder chart HR1550 star
Simplified finder chart for HR1550.

Visibility of HR1550 from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

HR1550 is circumpolar and transits at 18:00 UTC (altitude: 81.1°)

Distance of HR1550 from the Sun and relative movement

HR1550 is distant 516.64 light years from the Sun and it is moving towards the Sun at the speed of 1 kilometers per second.

158.48 pc
516.64 ly
-1 km/s
-0.006 arcsec/year
-0.001 arcsec/year

Spectral properties of HR1550

HR1550 belongs to spectral class A3 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR1550 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR1550. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR1550