HR7391

Below the horizon. Rise: 20:45 | Tran: 4:35 | Set: 12:21

Alt: -15.25° Az: 335.51° Direction: North-North-West

HR7391 is a multiple hypergiant star of spectral class M0 in the constellation of Vulpecula.

HR7391 visual magnitude is 5.81. Because of its faintness, HR7391 is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

DSS2 image of HR7391. The red arrow shows the motion of HR7391 during the next 10000 years (-0.17 arcmin in Right Ascension and -7.67 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 19h 27m 35s

Declination +19° 56’ 37”

Hour Angle 10h 19m 17s

Sidereal Time 05h 46m 52s

J2000

Right Ascension 19h 26m 28s

Declination +19° 53’ 29”

Galactic Coordinates

Galactic Longitude 54.54°

Galactic Latitude 1.59°

Finder Chart

Loading map...

Finder chart for HR7391.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.81

Class Hypergiant

Absolute magnitude 0.09

Spectral Type M0III

Color Index (B-V) 1.55

Temperature 3720K

The red dot in the diagram below shows where HR7391 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR7391. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR7391 is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the HR7391 double sysyem:

Main star magnitude 5.81

Secondary star magnitude 9.61

Magnitude difference 3.8

Separation 152.5 arcsec

Distance, Radial Speed, Proper Motion

HR7391 is distant 454.67 light years from the Sun and it is moving towards the Sun at the speed of 34 kilometers per second.

Distance (parsec) 139.47

Distance (light year) 454.67

Radial Speed -34 km/s

Proper Motion RA -0.001 arcsec/y

Proper Motion Dec -0.046"/y

Alternative Designations

Henry Draper Catalogue HD182955

SAO Catalogue SAO104839

Hipparcos Catalogue HIP95582

Durchmusterung Catalogue BD+19 4017

FK5 Catalogue 1505

Aitken Double Star Catalogue ADS12445

Visibility from Your Location

Today's HR7391 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 70.1° RISE 20:45

Max altitude: 58.5° TRANSIT 4:35

Azimuth: 289.9° SET 12:21

Set Location

Other stars in Vulpecula