HR7639

Below the horizon. Rise: 23:06 | Tran: 1:55 | Set: 4:48

Alt: -17.77° Az: 231.10° Direction: South-West

HR7639 is a main-sequence star of spectral class A2 in the constellation of Sagittarius.

HR7639 visual magnitude is 6.29. Because of its faintness, HR7639 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 HR7639. The red arrow shows the motion of HR7639 during the next 10000 years (-2.50 arcmin in Right Ascension and -6.33 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 20h 03m 10s

Declination -40° 44’ 31”

Hour Angle 05h 11m 59s

Sidereal Time 01h 15m 10s

J2000

Right Ascension 20h 01m 26s

Declination -40° 48’ 51”

Galactic Coordinates

Galactic Longitude 359.42°

Galactic Latitude -30.04°

Finder Chart

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Finder chart for HR7639.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.29

Class Main-sequence

Absolute magnitude 1.62

Spectral Type A2V

Color Index (B-V) 0.11

Temperature 8932K

The red dot in the diagram below shows where HR7639 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR7639. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR7639 is distant 279.83 light years from the Sun and it is moving towards the Sun at the speed of 31 kilometers per second.

Distance (parsec) 85.84

Distance (light year) 279.83

Radial Speed -31 km/s

Proper Motion RA -0.015 arcsec/y

Proper Motion Dec -0.038"/y

Alternative Designations

Henry Draper Catalogue HD189388

SAO Catalogue SAO229993

Hipparcos Catalogue HIP98579

Durchmusterung Catalogue CD-4113807

Visibility from Your Location

Today's HR7639 rise, transit and set times from Cakran, Albania are the following (all times relative to the local timezone Europe/Tirane):

Azimuth: 130.7° RISE 23:06

Max altitude: 8.7° TRANSIT 1:55

Azimuth: 229.3° SET 4:48

Name:	Cakran, Albania
Latitude:	40° 36' 11.9" N
Longitude:	19° 37' 34.0" E
Timezone:	Europe/Tirane

Set Location

Other stars in Sagittarius