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public LocationGreenwich, United Kingdom
TimezoneEurope/London
Sunrise: 5:24 
Transit: 12:55 
Sunset: 20:27
sunny   (Daytime)   What's Visible Now?

HR7857

Altitude: -25.9°   Azimuth: 337.4°   Direction: North-North-West

HR7857 is a main-sequence star in the constellation of Delphinus.

HR7857 visual magnitude is 6.56. Because of its reltive faintness, HR7857 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 HR7857 is -0.007 arcsec per year in Right Ascension and 0.007 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR7857 star
DSS2 image of HR7857. The red arrow shows the motion of HR7857 during the next 100000 years (-11.67 arcmin in Right Ascension and 11.67 arcmin in declination);

Key facts about HR7857

6.56
Main-sequence

HR7857 is below the horizon from Greenwich, United Kingdom.

Altitude: -25.9°
Azimuth: 337.4°
Direction: North-North-West

Celestial coordinates and finder chart of HR7857

HR7857 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 HR7857 are provided in the following table:

20h 33m 53s
+10° 03’ 34”
54.42°
-17.41°
Delphinus

The simplified sky map below shows the position of HR7857 in the sky:

Finder chart HR7857 star
Simplified finder chart for HR7857.

Visibility of HR7857 from your location

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

Today's HR7857 rise, transit and set times from Greenwich, United Kingdom are the following (all times relative to the local timezone Europe/London):

Azimuth: 79.9°
Max altitude: 48.6°
Azimuth: 280.1°

Distance of HR7857 from the Sun and relative movement

HR7857 is distant 400.98 light years from the Sun and it is moving towards the Sun at the speed of 13 kilometers per second.

123.00 pc
400.98 ly
-13 km/s
-0.007 arcsec/year
0.007 arcsec/year

Spectral properties of HR7857

HR7857 belongs to spectral class A2 and has a luminosity class of V corresponding to a main-sequence star.

1.11
A2V
9226K

The red dot in the diagram below shows where HR7857 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR7857. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR7857

SAO125960
SAO125960