κ Aquilae (kappa Aquilae)

κ Aquilae is a variable hypergiant star in the constellation of Aquila.

κ Aquilae visual magnitude is 4.95. Because of its moderate brightness, κ Aquilae should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The table below summarizes the key facts about κ Aquilae:

Color of κ Aquilae ⬤

Magnitude of κ Aquilae 4.95

Class Hypergiant

VISIBILITY RIGHT NOW κ Aquilae (kappa Aquilae) is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of κ Aquilae

κ Aquilae is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of κ Aquilae are provided in the following table:

Right Ascension J2000 19h 36m 53s

Declination J2000 -07° 01’ 38”

Galactic Longitude 31.77°

Galactic Latitude -13.29°

Constellation Aquila

The simplified sky map below shows the position of κ Aquilae in the sky:

Finder chart κ Aquilae (kappa Aquilae) star

Simplified finder chart for κ Aquilae (kappa Aquilae).

Visibility of κ Aquilae from your location

Location: Greenwich, United Kingdom [change]
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

Today's κ Aquilae (kappa Aquilae) rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 97.0° RISE 2:52

Max altitude: 31.5° TRANSIT 8:15

Azimuth: 263.0° SET 13:37

RIGHT NOW κ Aquilae (kappa Aquilae) is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of κ Aquilae

The image below is a photograph of κ Aquilae from the Digitized Sky Survey 2 (DSS2 - see the credits section) taken in the red channel. The area of sky represented in the image is 0.5x0.5 degrees (30x30 arcmins). The proper motion of κ Aquilae is 0.003 arcsec per year in Right Ascension and -0.004 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

DSS2 image of κ Aquilae. The red arrow shows the motion of κ Aquilae during the next 100000 years (5.00 arcmin in Right Ascension and -6.67 arcmin in declination);

Distance of κ Aquilae from the Sun and relative movement

κ Aquilae is distant 1,455.36 light years from the Sun and it is moving towards the Sun at the speed of 19 kilometers per second.

Distance (parsec) 446.43 pc

Distance (light year) 1,455.36 ly

Heliocentric radial velocity -19 km/s

Proper Motion RA 0.003 arcsec/year

Proper Motion Dec -0.004 arcsec/year

Spectral properties of κ Aquilae

κ Aquilae belongs to spectral class B0 and has a luminosity class of III corresponding to a hypergiant star.

Absolute magnitude -3.30

Spectral Type B0III

Color Index (B-V) 0

Temperature of κ Aquilae 10125K

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

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

Alternative designations of κ Aquilae

Bayer designation κ Aquilae
(kappa Aquilae)

Flamsteed designation 39 Aquilae

Henry Draper Catalogue HD184915

SAO Catalogue SAO143600

Hipparcos Catalogue HIP96483

Durchmusterung Catalogue BD-07 5006

FK5 Catalogue 737

General Catalogue of Variable Stars 12204

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Other stars in Aquila