τ Aquilae (tau Aquilae)

Below the horizon. Rise: 14:41 | Tran: 21:16 | Set: 3:55

Alt: -21.30° Az: 44.73° Direction: North-East

τ Aquilae is a giant star of spectral class K0 in the constellation of Aquila.

τ Aquilae visual magnitude is 5.52. Because of its faintness, τ Aquilae 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 τ Aquilae. The red arrow shows the motion of τ Aquilae during the next 10000 years (2.67 arcmin in Right Ascension and 1.83 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 20h 05m 20s

Declination +07° 20’ 57”

Hour Angle 14h 45m 33s

Sideral Time 10h 50m 53s

J2000

Right Ascension 20h 04m 08s

Declination +07° 16’ 41”

Galactic Coordinates

Galactic Longitude 48.01°

Galactic Latitude -12.57°

Finder Chart

Simplified finder chart for τ Aquilae (tau Aquilae).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.52

Class Giant

Absolute magnitude -0.52

Spectral Type K0

Color Index (B-V) 1.06

Temperature 4603K

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

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

Distance, Radial Speed, Proper Motion

τ Aquilae is distant 526.66 light years from the Sun and it is moving towards the Sun at the speed of 28 kilometers per second.

Distance (parsec) 161.55

Distance (light year) 526.66

Radial Speed -28 km/s

Proper Motion RA 0.016 arcsec/y

Proper Motion Dec 0.011"/y

Alternative Designations

Bayer designation τ Aquilae
(tau Aquilae)

Flamsteed designation 63 Aquilae

Henry Draper Catalogue HD190327

SAO Catalogue SAO125403

Hipparcos Catalogue HIP98823

Durchmusterung Catalogue BD+06 4416

FK5 Catalogue 1524

Visibility from Your Location

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

Azimuth: 82.7° RISE 14:41

Max altitude: 45.9° TRANSIT 21:16

Azimuth: 277.3° SET 3:55

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

Location

Other stars in Aquila