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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:38  
clear_day Transit: 11:46  
SunsetSet: 15:54 south
sunny DaytimeWhat's Visible Now?
All Constellations » Aquila » 

20 Aquilae

Altitude: 24.8°   Azimuth: 145.7°   Direction: South-East

20 Aquilae is a variable main-sequence star in the constellation of Aquila.

20 Aquilae visual magnitude is 5.34. Because of its reltive faintness, 20 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 20 Aquilae:

5.34
Main-sequence

20 Aquilae is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 24.8°
Azimuth: 145.7°
Direction: South-East

Celestial coordinates and finder chart of 20 Aquilae

20 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 20 Aquilae are provided in the following table:

19h 12m 40s
-07° 56’ 21”
28.23°
-8.31°
Aquila

The simplified sky map below shows the position of 20 Aquilae in the sky:

Finder chart 20 Aquilae star
Simplified finder chart for 20 Aquilae.

Visibility of 20 Aquilae from your location

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

Today's 20 Aquilae rise, transit and set times from Greenwich, United Kingdom edit_location_alt are the following (all times relative to the local timezone Europe/London):

Azimuth: 97.9°
Max altitude: 30.6°
Azimuth: 262.1°

Digitized Sky Survey image of 20 Aquilae

The image below is a photograph of 20 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 20 Aquilae is 0.016 arcsec per year in Right Ascension and -0.006 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of 20 Aquilae star
DSS2 image of 20 Aquilae. The red arrow shows the motion of 20 Aquilae during the next 10000 years (2.67 arcmin in Right Ascension and -1.00 arcmin in declination);

Distance of 20 Aquilae from the Sun and relative movement

20 Aquilae is distant 1,216.42 light years from the Sun and it is moving towards the Sun at the speed of 15 kilometers per second.

373.13 pc
1,216.42 ly
-15 km/s
0.016 arcsec/year
-0.006 arcsec/year

Spectral properties of 20 Aquilae

20 Aquilae belongs to spectral class B3 and has a luminosity class of V corresponding to a main-sequence star.

-2.52
B3V
8748K

The red dot in the diagram below shows where 20 Aquilae is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 20 Aquilae. Attribution: Richard Powell / CC BY-SA

Alternative designations of 20 Aquilae

SAO143134
SAO143134