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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: 7:50  
clear_day Transit: 11:50  
SunsetSet: 15:49 south
wb_twilight Civil TwilightWhat's Visible Now?
All Constellations » Aquila » 


Altitude: 27.5°   Azimuth: 194.7°   Direction: South-South-West

HR7637 is a main-sequence star in the constellation of Aquila.

HR7637 visual magnitude is 5.88. Because of its reltive faintness, HR7637 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 HR7637:


HR7637 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 27.5°
Azimuth: 194.7°
Direction: South-South-West

Celestial coordinates and finder chart of HR7637

HR7637 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 HR7637 are provided in the following table:

19h 59m 47s
-09° 57’ 29”

The simplified sky map below shows the position of HR7637 in the sky:

Finder chart HR7637 star
Simplified finder chart for HR7637.

Visibility of HR7637 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 HR7637 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: 100.0°
Max altitude: 28.6°
Azimuth: 260.0°

Digitized Sky Survey image of HR7637

The image below is a photograph of HR7637 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 HR7637 is -0.269 arcsec per year in Right Ascension and -0.4 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR7637 star
DSS2 image of HR7637. The red arrow shows the motion of HR7637 during the next 1000 years (-4.48 arcmin in Right Ascension and -6.67 arcmin in declination);

Distance of HR7637 from the Sun and relative movement

HR7637 is distant 80.00 light years from the Sun and it is moving far from the Sun at the speed of 23 kilometers per second.

24.54 pc
80.00 ly
23 km/s
-0.269 arcsec/year
-0.4 arcsec/year

Spectral properties of HR7637

HR7637 belongs to spectral class F8 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR7637 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR7637. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR7637

Gl 773.3