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A Complete Guide to the Solar System and the Night Sky
public LocationGreenwich, United Kingdom
TimezoneEurope/London
Sunrise: 5:28 
Transit: 12:55 
Sunset: 20:24
sunny   (Daytime)   What's Visible Now?
All Constellations » Pavo » 

HR7531

Altitude: -81.1°   Azimuth: 206.9°   Direction: South-South-West

HR7531 is a double hypergiant star in the constellation of Pavo.

HR7531 visual magnitude is 5.42. Because of its reltive faintness, HR7531 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 HR7531 is 0.015 arcsec per year in Right Ascension and 0.004 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR7531 star
DSS2 image of HR7531. The red arrow shows the motion of HR7531 during the next 10000 years (2.50 arcmin in Right Ascension and 0.67 arcmin in declination);

Key facts about HR7531

5.42
Hypergiant

HR7531 is below the horizon from Greenwich, United Kingdom.

Altitude: -81.1°
Azimuth: 206.9°
Direction: South-South-West

Celestial coordinates and finder chart of HR7531

HR7531 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR7531 are provided in the following table:

19h 50m 44s
-59° 11’ 35”
338.02°
-30.55°
Pavo

The simplified sky map below shows the position of HR7531 in the sky:

Finder chart HR7531 star
Simplified finder chart for HR7531.

Visibility of HR7531 from your location

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

HR7531 is currently not visible from Greenwich, United Kingdom

Distance of HR7531 from the Sun and relative movement

HR7531 is distant 259.76 light years from the Sun and it is moving far from the Sun at the speed of 4 kilometers per second.

79.68 pc
259.76 ly
4 km/s
0.015 arcsec/year
0.004 arcsec/year

Spectral properties of HR7531

HR7531 belongs to spectral class A0 and has a luminosity class of IV corresponding to a hypergiant star.

0.91
A0IV
9226K

The red dot in the diagram below shows where HR7531 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR7531. Attribution: Richard Powell / CC BY-SA

HR7531 star system properties

HR7531 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 HR7531 double sysyem:

5.42
6.92
1.5
0.5 arcsec

Alternative designations of HR7531

SAO246293
SAO246293