HR7542

HR7542 is a supergiant star in the constellation of Aquila.

HR7542 visual magnitude is 6.44. Because of its reltive faintness, HR7542 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 HR7542:

Color of HR7542 ⬤

Magnitude of HR7542 6.44

Class Supergiant

VISIBILITY RIGHT NOW HR7542 is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 21°.

Celestial coordinates and finder chart of HR7542

HR7542 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 HR7542 are provided in the following table:

Right Ascension J2000 19h 48m 30s

Declination J2000 +10° 41’ 39”

Galactic Longitude 49.07°

Galactic Latitude -7.52°

Constellation Aquila

The simplified sky map below shows the position of HR7542 in the sky:

Simplified finder chart for HR7542.

Visibility of HR7542 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 HR7542 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: 79.3° RISE 21:26

Max altitude: 49.2° TRANSIT 4:22

Azimuth: 280.7° SET 11:15

RIGHT NOW HR7542 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR7542

The image below is a photograph of HR7542 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 HR7542 is -0.007 arcsec per year in Right Ascension and -0.001 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

DSS2 image of HR7542. The red arrow shows the motion of HR7542 during the next 100000 years (-11.67 arcmin in Right Ascension and -1.67 arcmin in declination);

Distance of HR7542 from the Sun and relative movement

HR7542 is distant 1,762.16 light years from the Sun and it is moving towards the Sun at the speed of 5 kilometers per second.

Distance (parsec) 540.54 pc

Distance (light year) 1,762.16 ly

Heliocentric radial velocity -5 km/s

Proper Motion RA -0.007 arcsec/year

Proper Motion Dec -0.001 arcsec/year

Spectral properties of HR7542

HR7542 belongs to spectral class F8 and has a luminosity class of I corresponding to a supergiant star.

Absolute magnitude -2.22

Spectral Type F8I

Color Index (B-V) 0.96

Temperature of HR7542 4841K

The red dot in the diagram below shows where HR7542 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR7542. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR7542

Henry Draper Catalogue HD187203

SAO Catalogue SAO105278

Hipparcos Catalogue HIP97454

Durchmusterung Catalogue BD+10 4058

In Evidence

Other stars in Aquila