η Aquilae (eta Aquilae)

Above the horizon. Rise: 22:34 | Tran: 4:41 | Set: 10:45

Alt: 35.32° Az: 211.42° Direction: South-South-West

η Aquilae is a variable supergiant star of spectral class F6 in the constellation of Aquila.

η Aquilae visual magnitude is 3.9. Because of its moderate brightness, η 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 η Aquilae. The red arrow shows the motion of η Aquilae during the next 10000 years (1.83 arcmin in Right Ascension and -1.17 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 19h 53m 45s

Declination +01° 04’ 21”

Hour Angle 01h 40m 41s

Sidereal Time 21h 34m 27s

J2000

Right Ascension 19h 52m 28s

Declination +01° 00’ 20”

Galactic Coordinates

Galactic Longitude 40.93°

Galactic Latitude -13.07°

Finder Chart

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Finder chart for η Aquilae (eta Aquilae).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 3.9

Class Supergiant

Absolute magnitude -3.88

Spectral Type F6I

Color Index (B-V) 0.89

Temperature 5023K

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

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

Distance, Radial Speed, Proper Motion

η Aquilae is distant 1,172.66 light years from the Sun and it is moving towards the Sun at the speed of 15 kilometers per second.

Distance (parsec) 359.71

Distance (light year) 1,172.66

Radial Speed -15 km/s

Proper Motion RA 0.011 arcsec/y

Proper Motion Dec -0.007"/y

Alternative Designations

Bayer designation η Aquilae
(eta Aquilae)

Flamsteed designation 55 Aquilae

Henry Draper Catalogue HD187929

SAO Catalogue SAO125159

Hipparcos Catalogue HIP97804

Durchmusterung Catalogue BD+00 4337

FK5 Catalogue 746

General Catalogue of Variable Stars Eta Aql

Visibility from Your Location

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

Azimuth: 88.9° RISE 22:34

Max altitude: 39.6° TRANSIT 4:41

Azimuth: 271.1° SET 10:45

Set Location

Other stars in Aquila