Your guide to the Solar System and the night sky
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🌎  Observing from: Greenwich, United Kingdom [change]
🌅 Sunrise: 6:38  ☀️ Transit: 13:03  🌅 Sunset: 19:28


HR803 is a multiple main-sequence star in the constellation of Aries.

HR803 visual magnitude is 6.35. Because of its reltive faintness, HR803 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 HR803:

HR803 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 6°.

Celestial coordinates and finder chart of HR803

HR803 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 HR803 are provided in the following table:

02h 43m 51s
+25° 38’ 17”

The simplified sky map below shows the position of HR803 in the sky:

Finder chart HR803 star
Simplified finder chart for HR803.

Visibility of HR803 from your location

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

Today's HR803 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 64.4°
Max altitude: 64.2°
Azimuth: 295.6°
HR803 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR803

The image below is a photograph of HR803 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 HR803 is -0.011 arcsec per year in Right Ascension and -0.005 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR803 star
DSS2 image of HR803. The red arrow shows the motion of HR803 during the next 10000 years (-1.83 arcmin in Right Ascension and -0.83 arcmin in declination);

Distance of HR803 from the Sun and relative movement

HR803 is distant 351.67 light years from the Sun and it is moving towards the Sun at the speed of 11 kilometers per second.

107.87 pc
351.67 ly
-11 km/s
-0.011 arcsec/year
-0.005 arcsec/year

Spectral properties of HR803

HR803 belongs to spectral class A2 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR803 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR803. Attribution: Richard Powell / CC BY-SA

HR803 star system properties

HR803 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 HR803 double sysyem:

2.9 arcsec

Alternative designations of HR803