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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
SunriseRise: 6:46  
clear_day Transit: 12:11  
SunsetSet: 17:36
sleep NighttimeWhat's Visible Now?
All Constellations » Cygnus » 

HR7734

Altitude: 20.4°   Azimuth: 56.3°   Direction: East-North-East

HR7734 is a variable hypergiant star in the constellation of Cygnus.

HR7734 visual magnitude is 6.45. Because of its reltive faintness, HR7734 should be visible only from locations with dark skies, while it is not visible at all from skies affected by light pollution.

The proper motion of HR7734 is 0.024 arcsec per year in Right Ascension and 0.002 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR7734 star
DSS2 image of HR7734. The red arrow shows the motion of HR7734 during the next 10000 years (4.00 arcmin in Right Ascension and 0.33 arcmin in declination);

Key facts about HR7734

6.45
Hypergiant

HR7734 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 20.4°
Azimuth: 56.3°
Direction: East-North-East

Celestial coordinates and finder chart of HR7734

HR7734 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 HR7734 are provided in the following table:

20h 14m 04s
+36° 36’ 19”
74.23°
1.14°
Cygnus

The simplified sky map below shows the position of HR7734 in the sky:

Finder chart HR7734 star
Simplified finder chart for HR7734.

Visibility of HR7734 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 HR7734 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: 53.4°
Max altitude: 75.1°
Azimuth: 306.6°

Distance of HR7734 from the Sun and relative movement

HR7734 is distant 1,009.29 light years from the Sun and it is moving towards the Sun at the speed of 22 kilometers per second.

309.60 pc
1,009.29 ly
-22 km/s
0.024 arcsec/year
0.002 arcsec/year

Spectral properties of HR7734

HR7734 belongs to spectral class A0 and has a luminosity class of V corresponding to a hypergiant star.

-1.00
A0V
10125K

The red dot in the diagram below shows where HR7734 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR7734. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR7734

SAO69653
SAO69653