δ Aquilae (delta Aquilae)

Below the horizon. Rise: 14:43 | Tran: 20:57 | Set: 3:15

Alt: -32.72° Az: 335.84° Direction: North-North-West

δ Aquilae is a variable and multiple sub-giant star of spectral class F3 in the constellation of Aquila.

δ Aquilae visual magnitude is 3.36. Because of its moderate brightness, δ Aquilae is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

DSS2 image of δ Aquilae. The red arrow shows the motion of δ Aquilae during the next 1000 years (4.28 arcmin in Right Ascension and 1.37 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 19h 26m 44s

Declination +03° 09’ 54”

Hour Angle 10h 39m 18s

Sideral Time 06h 06m 02s

J2000

Right Ascension 19h 25m 29s

Declination +03° 06’ 52”

Galactic Coordinates

Galactic Longitude 39.62°

Galactic Latitude -6.13°

Finder Chart

Simplified finder chart for δ Aquilae (delta Aquilae).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 3.36

Class Sub-giant

Absolute magnitude 2.43

Spectral Type F3IV

Color Index (B-V) 0.32

Temperature 7337K

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

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

Star System Properties

δ Aquilae is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the δ Aquilae double sysyem:

Main star magnitude 3.36

Secondary star magnitude 10.86

Magnitude difference 7.5

Separation 108.9 arcsec

Distance, Radial Speed, Proper Motion

δ Aquilae is distant 50.12 light years from the Sun and it is moving towards the Sun at the speed of 30 kilometers per second.

Distance (parsec) 15.37

Distance (light year) 50.12

Radial Speed -30 km/s

Proper Motion RA 0.257 arcsec/y

Proper Motion Dec 0.082"/y

Alternative Designations

Bayer designation δ Aquilae
(delta Aquilae)

Flamsteed designation 30 Aquilae

Henry Draper Catalogue HD182640

SAO Catalogue SAO124603

Hipparcos Catalogue HIP95501

Durchmusterung Catalogue BD+02 3879

Gliese Catalogue Gl 760

FK5 Catalogue 730

General Catalogue of Variable Stars 12004

Visibility from Your Location

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

Azimuth: 86.8° RISE 14:43

Max altitude: 41.7° TRANSIT 20:57

Azimuth: 273.2° SET 3:15

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

Location

Other stars in Aquila