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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
wb_twilight Astronomical TwilightWhat's Visible Now?
All Constellations » Cygnus » 


Altitude: 21.0°   Azimuth: 32.9°   Direction: North-North-East

HR7755 is a main-sequence star in the constellation of Cygnus.

HR7755 visual magnitude is 6.31. Because of its reltive faintness, HR7755 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 HR7755:


HR7755 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 21.0°
Azimuth: 32.9°
Direction: North-North-East

Celestial coordinates and finder chart of HR7755

HR7755 is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR7755 are provided in the following table:

20h 15m 43s
+50° 13’ 58”

The simplified sky map below shows the position of HR7755 in the sky:

Finder chart HR7755 star
Simplified finder chart for HR7755.

Visibility of HR7755 from your location

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

HR7755 is circumpolar and transits at 14:55 UTC (altitude: 88.8°)

Digitized Sky Survey image of HR7755

The image below is a photograph of HR7755 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 HR7755 is 0.024 arcsec per year in Right Ascension and 0.01 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR7755 star
DSS2 image of HR7755. The red arrow shows the motion of HR7755 during the next 10000 years (4.00 arcmin in Right Ascension and 1.67 arcmin in declination);

Distance of HR7755 from the Sun and relative movement

HR7755 is distant 354.73 light years from the Sun and it is moving towards the Sun at the speed of 25 kilometers per second.

108.81 pc
354.73 ly
-25 km/s
0.024 arcsec/year
0.01 arcsec/year

Spectral properties of HR7755

HR7755 belongs to spectral class A2 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR7755 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR7755. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR7755