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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: 6:38  
clear_day Transit: 12:10  
SunsetSet: 17:43
wb_twilight Nautical TwilightWhat's Visible Now?
All Constellations » Cygnus » 


Altitude: -5.3°   Azimuth: 335.1°   Direction: North-North-West

HR7501 is a variable giant star in the constellation of Cygnus.

HR7501 visual magnitude is 6.49. Because of its reltive faintness, HR7501 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 HR7501 is 0.061 arcsec per year in Right Ascension and 0.047 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR7501 star
DSS2 image of HR7501. The red arrow shows the motion of HR7501 during the next 10000 years (10.17 arcmin in Right Ascension and 7.83 arcmin in declination);

Key facts about HR7501


HR7501 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -5.3°
Azimuth: 335.1°
Direction: North-North-West

Celestial coordinates and finder chart of HR7501

HR7501 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 HR7501 are provided in the following table:

19h 42m 49s
+29° 19’ 54”

The simplified sky map below shows the position of HR7501 in the sky:

Finder chart HR7501 star
Simplified finder chart for HR7501.

Visibility of HR7501 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 HR7501 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: 60.7°
Max altitude: 67.9°
Azimuth: 299.3°

Distance of HR7501 from the Sun and relative movement

HR7501 is distant 266.12 light years from the Sun and it is moving towards the Sun at the speed of 25 kilometers per second.

81.63 pc
266.12 ly
-25 km/s
0.061 arcsec/year
0.047 arcsec/year

Spectral properties of HR7501

HR7501 belongs to spectral class F1 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR7501 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR7501. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR7501