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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: 7:54  
clear_day Transit: 11:51  
SunsetSet: 15:49 south
sleep NighttimeWhat's Visible Now?
All Constellations » Aquila » 

HR7231

Altitude: -30.2°   Azimuth: 313.1°   Direction: North-West

HR7231 is a main-sequence star in the constellation of Aquila.

HR7231 visual magnitude is 6.53. Because of its reltive faintness, HR7231 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 HR7231:

6.53
Main-sequence

HR7231 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -30.2°
Azimuth: 313.1°
Direction: North-West

Celestial coordinates and finder chart of HR7231

HR7231 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 HR7231 are provided in the following table:

19h 05m 18s
-01° 30’ 46”
33.17°
-3.78°
Aquila

The simplified sky map below shows the position of HR7231 in the sky:

Finder chart HR7231 star
Simplified finder chart for HR7231.

Visibility of HR7231 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 HR7231 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: 91.5°
Max altitude: 37.0°
Azimuth: 268.5°

Digitized Sky Survey image of HR7231

The image below is a photograph of HR7231 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 HR7231 is -0.003 arcsec per year in Right Ascension and -0.007 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR7231 star
DSS2 image of HR7231. The red arrow shows the motion of HR7231 during the next 100000 years (-5.00 arcmin in Right Ascension and -11.67 arcmin in declination);

Distance of HR7231 from the Sun and relative movement

HR7231 is distant 146.12 light years from the Sun and it is moving towards the Sun at the speed of 32 kilometers per second.

44.82 pc
146.12 ly
-32 km/s
-0.003 arcsec/year
-0.007 arcsec/year

Spectral properties of HR7231

HR7231 belongs to spectral class F1 and has a luminosity class of V corresponding to a main-sequence star.

3.27
F1V
7158K

The red dot in the diagram below shows where HR7231 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR7231. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR7231

SAO143003
SAO143003