Your guide to the Solar System and the night sky
Please donate now to help keep TheSkyLive ads-free. This site cannot run without your voluntary donations.
🌎  Greenwich, United Kingdom [change]

HR7782

HR7782 is a hypergiant star in the constellation of Cygnus.

HR7782 visual magnitude is 6.57. Because of its reltive faintness, HR7782 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 HR7782:

6.57
Hypergiant
HR7782 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 1°.

Celestial coordinates and finder chart of HR7782

HR7782 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 HR7782 are provided in the following table:

20h 19m 48s
+37° 07’ 57”
75.31°
0.48°
Cygnus

The simplified sky map below shows the position of HR7782 in the sky:

Finder chart HR7782 star
Simplified finder chart for HR7782.

Visibility of HR7782 from your location

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

Today's HR7782 rise, transit and set times from Greenwich, United Kingdom [change] are the following (all times relative to the local timezone Europe/London):

Azimuth: 52.9°
Max altitude: 75.7°
Azimuth: 307.1°
HR7782 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR7782

The image below is a photograph of HR7782 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 HR7782 is 0.01 arcsec per year in Right Ascension and -0.011 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR7782 star
DSS2 image of HR7782. The red arrow shows the motion of HR7782 during the next 10000 years (1.67 arcmin in Right Ascension and -1.83 arcmin in declination);

Distance of HR7782 from the Sun and relative movement

HR7782 is distant 620.95 light years from the Sun and it is moving towards the Sun at the speed of 19 kilometers per second.

190.48 pc
620.95 ly
-19 km/s
0.01 arcsec/year
-0.011 arcsec/year

Spectral properties of HR7782

HR7782 belongs to spectral class A0 and has a luminosity class of III corresponding to a hypergiant star.

0.17
A0III
10125K

The red dot in the diagram below shows where HR7782 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR7782. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR7782

SAO69841
SAO69841