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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
north SunriseRise: 7:38  
clear_day Transit: 11:46  
SunsetSet: 15:54 south
sleep NighttimeWhat's Visible Now?
All Constellations » Aries » 


Altitude: 62.5°   Azimuth: 201.8°   Direction: South-South-West

HR728 is a multiple sub-giant star in the constellation of Aries.

HR728 visual magnitude is 5.92. Because of its reltive faintness, HR728 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 HR728:


HR728 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 62.5°
Azimuth: 201.8°
Direction: South-South-West

Celestial coordinates and finder chart of HR728

HR728 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 HR728 are provided in the following table:

02h 30m 32s
+25° 14’ 05”

The simplified sky map below shows the position of HR728 in the sky:

Finder chart HR728 star
Simplified finder chart for HR728.

Visibility of HR728 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 HR728 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: 64.8°
Max altitude: 63.8°
Azimuth: 295.2°

Digitized Sky Survey image of HR728

The image below is a photograph of HR728 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 HR728 is 0.066 arcsec per year in Right Ascension and -0.078 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR728 star
DSS2 image of HR728. The red arrow shows the motion of HR728 during the next 10000 years (11.00 arcmin in Right Ascension and -13.00 arcmin in declination);

Distance of HR728 from the Sun and relative movement

HR728 is distant 166.41 light years from the Sun and it is moving towards the Sun at the speed of 11 kilometers per second.

51.05 pc
166.41 ly
-11 km/s
0.066 arcsec/year
-0.078 arcsec/year

Spectral properties of HR728

HR728 belongs to spectral class F6 and has a luminosity class of IV corresponding to a sub-giant star.


The red dot in the diagram below shows where HR728 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR728. Attribution: Richard Powell / CC BY-SA

HR728 star system properties

HR728 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR728 double sysyem:

113.1 arcsec

Alternative designations of HR728