HR7523

HR7523 is a variable giant star in the constellation of Cygnus.

HR7523 visual magnitude is 6.34. Because of its reltive faintness, HR7523 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 HR7523:

Color of HR7523 ⬤

Magnitude of HR7523 6.34

Class Giant

VISIBILITY RIGHT NOW HR7523 is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 34°.

Celestial coordinates and finder chart of HR7523

HR7523 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 HR7523 are provided in the following table:

Right Ascension J2000 19h 44m 48s

Declination J2000 +40° 43’ 00”

Galactic Longitude 74.77°

Galactic Latitude 8.15°

Constellation Cygnus

The simplified sky map below shows the position of HR7523 in the sky:

Simplified finder chart for HR7523.

Visibility of HR7523 from your location

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

HR7523 is circumpolar and transits at 03:15 UTC (altitude: 79.2°)

Digitized Sky Survey image of HR7523

The image below is a photograph of HR7523 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 HR7523 is -0.064 arcsec per year in Right Ascension and -0.023 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR7523. The red arrow shows the motion of HR7523 during the next 10000 years (-10.67 arcmin in Right Ascension and -3.83 arcmin in declination);

Distance of HR7523 from the Sun and relative movement

HR7523 is distant 905.56 light years from the Sun and it is moving towards the Sun at the speed of 97 kilometers per second.

Distance (parsec) 277.78 pc

Distance (light year) 905.56 ly

Heliocentric radial velocity -97 km/s

Proper Motion RA -0.064 arcsec/year

Proper Motion Dec -0.023 arcsec/year

Spectral properties of HR7523

HR7523 belongs to spectral class M4 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude -0.88

Spectral Type M4III

Color Index (B-V) 1.64

Temperature of HR7523 3594K

The red dot in the diagram below shows where HR7523 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR7523. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR7523

Henry Draper Catalogue HD186776

SAO Catalogue SAO48789

Hipparcos Catalogue HIP97151

Durchmusterung Catalogue BD+40 3866

General Catalogue of Variable Stars V973 Cyg

In Evidence

Other stars in Cygnus