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: 4:45  
clear_day Transit: 12:57  
SunsetSet: 21:09 south
wb_twilight Astronomical TwilightWhat's Visible Now
All Constellations » Perseus » 


Altitude: 11.7°   Azimuth: 354.4°   Direction: North

HR1493 is a double giant star in the constellation of Perseus.

HR1493 visual magnitude is 5.87. Because of its reltive faintness, HR1493 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 HR1493:


HR1493 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 11.7°
Azimuth: 354.4°
Direction: North

Celestial coordinates and finder chart of HR1493

HR1493 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 HR1493 are provided in the following table:

04h 43m 21s
+49° 58’ 26”

The simplified sky map below shows the position of HR1493 in the sky:

Finder chart HR1493 star
Simplified finder chart for HR1493.

Visibility of HR1493 from your location

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

HR1493 is circumpolar and transits at 11:44 UTC (altitude: 88.5°)

Digitized Sky Survey image of HR1493

The image below is a photograph of HR1493 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 HR1493 is -0.004 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 HR1493 star
DSS2 image of HR1493. The red arrow shows the motion of HR1493 during the next 10000 years (-0.67 arcmin in Right Ascension and -2.67 arcmin in declination);

Distance of HR1493 from the Sun and relative movement

HR1493 is distant 640.47 light years from the Sun and it is moving far from the Sun at the speed of 3 kilometers per second.

196.46 pc
640.47 ly
3 km/s
-0.004 arcsec/year
-0.016 arcsec/year

Spectral properties of HR1493

HR1493 belongs to spectral class B9 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR1493 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR1493. Attribution: Richard Powell / CC BY-SA

HR1493 star system properties

HR1493 is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the HR1493 double sysyem:

20.8 arcsec

Alternative designations of HR1493