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

HR8777

HR8777 is a double main-sequence star in the constellation of Cepheus.

HR8777 visual magnitude is 6.74. Because of its reltive faintness, HR8777 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 HR8777:

6.74
Main-sequence
HR8777 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 53°.

Celestial coordinates and finder chart of HR8777

HR8777 is situated close to the northern celestial pole and, as such, it is visible for most part of the year from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR8777 are provided in the following table:

23h 03m 23s
+60° 26’ 43”
109.99°
0.32°
Cepheus

The simplified sky map below shows the position of HR8777 in the sky:

Finder chart HR8777 star
Simplified finder chart for HR8777.

Visibility of HR8777 from your location

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

HR8777 is circumpolar and transits at 01:31 UTC (altitude: 81.0°)

Digitized Sky Survey image of HR8777

The image below is a photograph of HR8777 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 HR8777 is 0.007 arcsec per year in Right Ascension and -0.006 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR8777 star
DSS2 image of HR8777. The red arrow shows the motion of HR8777 during the next 100000 years (11.67 arcmin in Right Ascension and -10.00 arcmin in declination);

Distance of HR8777 from the Sun and relative movement

HR8777 is distant 1,928.99 light years from the Sun and it is moving towards the Sun at the speed of 17 kilometers per second.

591.72 pc
1,928.99 ly
-17 km/s
0.007 arcsec/year
-0.006 arcsec/year

Spectral properties of HR8777

HR8777 belongs to spectral class B2 and has a luminosity class of V corresponding to a main-sequence star.

-2.12
B2V
10382K

The red dot in the diagram below shows where HR8777 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR8777. Attribution: Richard Powell / CC BY-SA

HR8777 star system properties

HR8777 is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the HR8777 double sysyem:

6.74
9.44
2.7
33.9 arcsec

Alternative designations of HR8777

SAO20393
SAO20393