HR7887

Above the horizon. Rise: 12:26 | Tran: 21:45 | Set: 7:08

Alt: 15.65° Az: 301.47° Direction: West-North-West

HR7887 is a multiple hypergiant star of spectral class F0 in the constellation of Cygnus.

HR7887 visual magnitude is 6.49. Because of its faintness, HR7887 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 HR7887. The red arrow shows the motion of HR7887 during the next 10000 years (-7.50 arcmin in Right Ascension and -5.50 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 20h 38m 32s

Declination +31° 36’ 34”

Hour Angle 07h 01m 22s

Sideral Time 03h 39m 55s

J2000

Right Ascension 20h 37m 32s

Declination +31° 31’ 18”

Galactic Coordinates

Galactic Longitude 72.89°

Galactic Latitude -5.76°

Finder Chart

Simplified finder chart for HR7887.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.49

Class Hypergiant

Absolute magnitude 3.03

Spectral Type F0V

Color Index (B-V) 0.34

Temperature 7217K

The red dot in the diagram below shows where HR7887 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR7887. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR7887 is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the HR7887 double sysyem:

Main star magnitude 6.49

Secondary star magnitude 6.59

Magnitude difference 0.1

Separation 180.8 arcsec

Distance, Radial Speed, Proper Motion

HR7887 is distant 160.59 light years from the Sun and it is moving far from the Sun at the speed of 1 kilometers per second.

Distance (parsec) 49.26

Distance (light year) 160.59

Radial Speed 1 km/s

Proper Motion RA -0.045 arcsec/y

Proper Motion Dec -0.033"/y

Alternative Designations

Henry Draper Catalogue HD196629

SAO Catalogue SAO70289

Hipparcos Catalogue HIP101768

Durchmusterung Catalogue BD+31 4160

Visibility from Your Location

Today's HR7887 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 58.4° RISE 12:26

Max altitude: 70.1° TRANSIT 21:45

Azimuth: 301.6° SET 7:08

Name:	Greenwich, UK
Latitude:	51° 28' 48.0" N
Longitude:	0° 0' 0.0" E
Timezone:	Europe/London

Location

Other stars in Cygnus