Your Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 4:44  
clear_day Transit: 12:57  
SunsetSet: 21:11 south
wb_twilight Nautical TwilightWhat's Visible Now
All Constellations » Triangulum » 


Altitude: 24.4°   Azimuth: 68.3°   Direction: East-North-East

HR503 is a variable giant star in the constellation of Triangulum.

HR503 visual magnitude is 6.34. Because of its reltive faintness, HR503 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 HR503:


HR503 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 24.4°
Azimuth: 68.3°
Direction: East-North-East

Celestial coordinates and finder chart of HR503

HR503 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 HR503 are provided in the following table:

01h 43m 50s
+32° 11’ 30”

The simplified sky map below shows the position of HR503 in the sky:

Finder chart HR503 star
Simplified finder chart for HR503.

Visibility of HR503 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 HR503 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: 57.8°
Max altitude: 70.7°
Azimuth: 302.2°
HR503 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR503

The image below is a photograph of HR503 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 HR503 is -0.022 arcsec per year in Right Ascension and -0.007 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR503 star
DSS2 image of HR503. The red arrow shows the motion of HR503 during the next 10000 years (-3.67 arcmin in Right Ascension and -1.17 arcmin in declination);

Distance of HR503 from the Sun and relative movement

HR503 is distant 460.45 light years from the Sun and it is moving towards the Sun at the speed of 5 kilometers per second.

141.24 pc
460.45 ly
-5 km/s
-0.022 arcsec/year
-0.007 arcsec/year

Spectral properties of HR503

HR503 belongs to spectral class G8 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR503 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR503. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR503