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

57 Aquilae

57 Aquilae is a double main-sequence star in the constellation of Aquila.

57 Aquilae visual magnitude is 6.49. Because of its reltive faintness, 57 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 57 Aquilae:

6.49
Main-sequence
57 Aquilae is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of 57 Aquilae

57 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 57 Aquilae are provided in the following table:

19h 54m 38s
-08° 14’ 13”
32.65°
-17.77°
Aquila

The simplified sky map below shows the position of 57 Aquilae in the sky:

Finder chart 57 Aquilae star
Simplified finder chart for 57 Aquilae.

Visibility of 57 Aquilae from your location

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

Today's 57 Aquilae rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 98.2°
Max altitude: 30.3°
Azimuth: 261.8°
57 Aquilae is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of 57 Aquilae

The image below is a photograph of 57 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 57 Aquilae is 0.021 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 57 Aquilae star
DSS2 image of 57 Aquilae. The red arrow shows the motion of 57 Aquilae during the next 10000 years (3.50 arcmin in Right Ascension and -4.50 arcmin in declination);

Distance of 57 Aquilae from the Sun and relative movement

57 Aquilae is distant 361.42 light years from the Sun and it is moving towards the Sun at the speed of 5 kilometers per second.

110.86 pc
361.42 ly
-5 km/s
0.021 arcsec/year
-0.027 arcsec/year

Spectral properties of 57 Aquilae

57 Aquilae belongs to spectral class B8 and has a luminosity class of V corresponding to a main-sequence star.

1.27
B8V
10653K

The red dot in the diagram below shows where 57 Aquilae is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of 57 Aquilae. Attribution: Richard Powell / CC BY-SA

57 Aquilae star system properties

57 Aquilae is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the 57 Aquilae double sysyem:

6.49
7.29
0.8
35.7 arcsec

Alternative designations of 57 Aquilae

SAO143899
SAO143899