HR7680

Below the horizon. Rise: 19:37 | Tran: 3:00 | Set: 10:20

Alt: -21.76° Az: 15.08° Direction: South

HR7680 is a double giant star of spectral class M2 in the constellation of Aquila.

HR7680 visual magnitude is 6.34. Because of its faintness, HR7680 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 HR7680. The red arrow shows the motion of HR7680 during the next 10000 years (5.50 arcmin in Right Ascension and 3.33 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 20h 06m 36s

Declination +15° 34’ 27”

Hour Angle 12h 58m 07s

Sidereal Time 09h 04m 44s

J2000

Right Ascension 20h 05m 26s

Declination +15° 30’ 01”

Galactic Coordinates

Galactic Longitude 55.36°

Galactic Latitude -8.64°

Finder Chart

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Finder chart for HR7680.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.34

Class Giant

Absolute magnitude -0.47

Spectral Type M2III

Color Index (B-V) 1.64

Temperature 3594K

The red dot in the diagram below shows where HR7680 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR7680. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR7680 is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the HR7680 double sysyem:

Main star magnitude 6.34

Secondary star magnitude 10.34

Magnitude difference 4

Separation 2.7 arcsec

Distance, Radial Speed, Proper Motion

HR7680 is distant 749.43 light years from the Sun and it is moving towards the Sun at the speed of 112 kilometers per second.

Distance (parsec) 229.89

Distance (light year) 749.43

Radial Speed -112 km/s

Proper Motion RA 0.033 arcsec/y

Proper Motion Dec 0.02"/y

Alternative Designations

Henry Draper Catalogue HD190658

SAO Catalogue SAO105663

Hipparcos Catalogue HIP98954

Durchmusterung Catalogue BD+15 4040

Aitken Double Star Catalogue ADS13344

Visibility from Your Location

Today's HR7680 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 74.4° RISE 19:37

Max altitude: 54.1° TRANSIT 3:00

Azimuth: 285.6° SET 10:20

Set Location

Other stars in Aquila