Your Guide to the Solar System and the Night Sky
Donate now! You'll help cover server costs, enhance the site and keep it ad-free.
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 4:49  
clear_day Transit: 12:56  
SunsetSet: 21:04 south
sunny DaytimeWhat's Visible Now
All Constellations » Vulpecula » 


HR7573 is a variable supergiant star in the constellation of Vulpecula.

HR7573 visual magnitude is 5.57. Because of its reltive faintness, HR7573 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 HR7573:

HR7573 is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 44°.

Celestial coordinates and finder chart of HR7573

HR7573 is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR7573 are provided in the following table:

19h 52m 01s
+24° 59’ 31”

The simplified sky map below shows the position of HR7573 in the sky:

Finder chart HR7573 star
Simplified finder chart for HR7573.

Visibility of HR7573 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 HR7573 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: 65.0°
Max altitude: 63.5°
Azimuth: 295.0°
HR7573 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR7573

The image below is a photograph of HR7573 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 HR7573 is 0.003 arcsec per year in Right Ascension and -0.005 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR7573 star
DSS2 image of HR7573. The red arrow shows the motion of HR7573 during the next 100000 years (5.00 arcmin in Right Ascension and -8.33 arcmin in declination);

Distance of HR7573 from the Sun and relative movement

HR7573 is distant 1,781.42 light years from the Sun and it is moving towards the Sun at the speed of 3 kilometers per second.

546.45 pc
1,781.42 ly
-3 km/s
0.003 arcsec/year
-0.005 arcsec/year

Spectral properties of HR7573

HR7573 belongs to spectral class A1 and has a luminosity class of I corresponding to a supergiant star.


The red dot in the diagram below shows where HR7573 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR7573. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR7573