HR7664

Below the horizon. Rise: 13:52 | Tran: 21:15 | Set: 4:42

Alt: -0.71° Az: 62.55° Direction: East-North-East

HR7664 is a star of spectral class B9 in the constellation of Aquila.

HR7664 visual magnitude is 5.67. Because of its faintness, HR7664 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 HR7664. The red arrow shows the motion of HR7664 during the next 100000 years (5.00 arcmin in Right Ascension and -8.33 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 20h 04m 37s

Declination +16° 06’ 08”

Hour Angle 16h 29m 48s

Sideral Time 12h 34m 25s

J2000

Right Ascension 20h 03m 29s

Declination +16° 01’ 53”

Galactic Coordinates

Galactic Longitude 55.58°

Galactic Latitude -7.97°

Finder Chart

Simplified finder chart for HR7664.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.67

Class

HR7664 is also a HgMn chemically peculiar star.

Absolute magnitude -0.78

Spectral Type B9

Color Index (B-V) -0.1

Temperature 11573K

The red dot in the diagram below shows where HR7664 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR7664. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

HR7664 is distant 636.72 light years from the Sun and it is moving towards the Sun at the speed of 22 kilometers per second.

Distance (parsec) 195.31

Distance (light year) 636.72

Radial Speed -22 km/s

Proper Motion RA 0.003 arcsec/y

Proper Motion Dec -0.005"/y

Alternative Designations

Henry Draper Catalogue HD190229

SAO Catalogue SAO105615

Hipparcos Catalogue HIP98754

Durchmusterung Catalogue BD+15 4033

Visibility from Your Location

Today's HR7664 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 73.9° RISE 13:52

Max altitude: 54.6° TRANSIT 21:15

Azimuth: 286.1° SET 4:42

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

Location

Other stars in Aquila