HR7904

Below the horizon. Rise: 18:22 | Tran: 3:33 | Set: 12:41

Alt: -7.96° Az: 4.67° Direction: South-West

HR7904 is a giant star of spectral class K2 in the constellation of Cygnus.

HR7904 visual magnitude is 5.68. Because of its faintness, HR7904 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 HR7904. The red arrow shows the motion of HR7904 during the next 10000 years (-5.33 arcmin in Right Ascension and -9.67 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 20h 40m 02s

Declination +30° 25’ 31”

Hour Angle 12h 21m 27s

Sidereal Time 09h 01m 29s

J2000

Right Ascension 20h 38m 59s

Declination +30° 20’ 03”

Galactic Coordinates

Galactic Longitude 72.12°

Galactic Latitude -6.72°

Finder Chart

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Finder chart for HR7904.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.68

Class Giant

Absolute magnitude 0.31

Spectral Type K2III

Color Index (B-V) 1.09

Temperature 4537K

The red dot in the diagram below shows where HR7904 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR7904. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR7904 is distant 386.26 light years from the Sun and it is moving far from the Sun at the speed of 13 kilometers per second.

Distance (parsec) 118.48

Distance (light year) 386.26

Radial Speed 13 km/s

Proper Motion RA -0.032 arcsec/y

Proper Motion Dec -0.058"/y

Alternative Designations

Henry Draper Catalogue HD196852

SAO Catalogue SAO70323

Hipparcos Catalogue HIP101899

Durchmusterung Catalogue BD+29 4121

Visibility from Your Location

Today's HR7904 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 59.6° RISE 18:22

Max altitude: 68.9° TRANSIT 3:33

Azimuth: 300.4° SET 12:41

Set Location

Other stars in Cygnus