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


HR7700 is a main-sequence star in the constellation of Aquila.

HR7700 visual magnitude is 6.31. Because of its reltive faintness, HR7700 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 HR7700:

HR7700 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 25°.

Celestial coordinates and finder chart of HR7700

HR7700 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 HR7700 are provided in the following table:

20h 08m 38s
+10° 43’ 32”

The simplified sky map below shows the position of HR7700 in the sky:

Finder chart HR7700 star
Simplified finder chart for HR7700.

Visibility of HR7700 from your location

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

Today's HR7700 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 79.3°
Max altitude: 49.2°
Azimuth: 280.7°
HR7700 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR7700

The image below is a photograph of HR7700 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 HR7700 is 0.004 arcsec per year in Right Ascension and 0.001 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR7700 star
DSS2 image of HR7700. The red arrow shows the motion of HR7700 during the next 100000 years (6.67 arcmin in Right Ascension and 1.67 arcmin in declination);

Distance of HR7700 from the Sun and relative movement

HR7700 is distant 1,841.81 light years from the Sun and it is moving towards the Sun at the speed of 25 kilometers per second.

564.97 pc
1,841.81 ly
-25 km/s
0.004 arcsec/year
0.001 arcsec/year

Spectral properties of HR7700

HR7700 belongs to spectral class B3 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR7700 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR7700. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR7700