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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: 6:40  
clear_day Transit: 12:10  
SunsetSet: 17:41
sunny DaytimeWhat's Visible Now?
All Constellations » Cassiopeia » 

HR743

Altitude: 48.0°   Azimuth: 26.2°   Direction: North-North-East

HR743 is a giant star in the constellation of Cassiopeia.

HR743 visual magnitude is 5.16. Because of its reltive faintness, HR743 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 HR743 is -0.03 arcsec per year in Right Ascension and 0.016 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR743 star
DSS2 image of HR743. The red arrow shows the motion of HR743 during the next 10000 years (-5.00 arcmin in Right Ascension and 2.67 arcmin in declination);

Key facts about HR743

5.16
Giant

HR743 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 48.0°
Azimuth: 26.2°
Direction: North-North-East

Celestial coordinates and finder chart of HR743

HR743 is situated close to the northern celestial pole and, as such, it is visible for most part of the year from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR743 are provided in the following table:

02h 38m 02s
+72° 49’ 05”
130.71°
11.58°
Cassiopeia

The simplified sky map below shows the position of HR743 in the sky:

Finder chart HR743 star
Simplified finder chart for HR743.

Visibility of HR743 from your location

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

HR743 is circumpolar and transits at 15:50 UTC (altitude: 68.7°)

Distance of HR743 from the Sun and relative movement

HR743 is distant 256.09 light years from the Sun and it is moving towards the Sun at the speed of 2 kilometers per second.

78.55 pc
256.09 ly
-2 km/s
-0.03 arcsec/year
0.016 arcsec/year

Spectral properties of HR743

HR743 belongs to spectral class G8 and has a luminosity class of III corresponding to a giant star.

0.68
G8III
5051K

The red dot in the diagram below shows where HR743 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR743. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR743

SAO4694
SAO4694