Your guide to the Solar System and the night sky
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🌎  Observing from: Greenwich, United Kingdom [change]

15 Aquilae

15 Aquilae is a double giant star in the constellation of Aquila.

15 Aquilae visual magnitude is 5.42. Because of its reltive faintness, 15 Aquilae should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The table below summarizes the key facts about 15 Aquilae:

5.42
Giant
15 Aquilae is above the horizon from Greenwich, United Kingdom [change]. Altitude: 28°.

Celestial coordinates and finder chart of 15 Aquilae

15 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 15 Aquilae are provided in the following table:

19h 04m 57s
-04° 01’ 53”
30.88°
-4.84°
Aquila

The simplified sky map below shows the position of 15 Aquilae in the sky:

Finder chart 15 Aquilae star
Simplified finder chart for 15 Aquilae.

Visibility of 15 Aquilae from your location

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

Today's 15 Aquilae rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 94.0°
Max altitude: 34.5°
Azimuth: 266.0°
15 Aquilae is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of 15 Aquilae

The image below is a photograph of 15 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 15 Aquilae is 0.02 arcsec per year in Right Ascension and -0.027 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 15 Aquilae star
DSS2 image of 15 Aquilae. The red arrow shows the motion of 15 Aquilae during the next 10000 years (3.33 arcmin in Right Ascension and -4.50 arcmin in declination);

Distance of 15 Aquilae from the Sun and relative movement

15 Aquilae is distant 324.70 light years from the Sun and it is moving towards the Sun at the speed of 18 kilometers per second.

99.60 pc
324.70 ly
-18 km/s
0.02 arcsec/year
-0.027 arcsec/year

Spectral properties of 15 Aquilae

15 Aquilae belongs to spectral class K1 and has a luminosity class of III corresponding to a giant star.

0.43
K1III
4472K

The red dot in the diagram below shows where 15 Aquilae is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 15 Aquilae. Attribution: Richard Powell / CC BY-SA

15 Aquilae star system properties

15 Aquilae is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the 15 Aquilae double sysyem:

5.42
7.02
1.6
38.5 arcsec

Alternative designations of 15 Aquilae

SAO142996
SAO142996