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A Complete Guide to the Solar System and the Night Sky
public LocationGreenwich, United Kingdom
TimezoneEurope/London
Sunrise: 5:29 
Transit: 12:55 
Sunset: 20:22
wb_twilight   (Astronomical Twilight)   What's Visible Now?
All Constellations » Phoenix » 

HR636

Altitude: -54.7°   Azimuth: 98.6°   Direction: East

HR636 is a giant star in the constellation of Phoenix.

HR636 visual magnitude is 6.32. Because of its reltive faintness, HR636 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 HR636 is 0.059 arcsec per year in Right Ascension and -0.009 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR636 star
DSS2 image of HR636. The red arrow shows the motion of HR636 during the next 10000 years (9.83 arcmin in Right Ascension and -1.50 arcmin in declination);

Key facts about HR636

6.32
Giant

HR636 is below the horizon from Greenwich, United Kingdom.

Altitude: -54.7°
Azimuth: 98.6°
Direction: East

Celestial coordinates and finder chart of HR636

HR636 is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR636 are provided in the following table:

02h 10m 04s
-43° 48’ 56”
264.54°
-66.99°
Phoenix

The simplified sky map below shows the position of HR636 in the sky:

Finder chart HR636 star
Simplified finder chart for HR636.

Visibility of HR636 from your location

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

HR636 is currently not visible from Greenwich, United Kingdom

Distance of HR636 from the Sun and relative movement

HR636 is distant 391.83 light years from the Sun and it is moving far from the Sun at the speed of 41 kilometers per second.

120.19 pc
391.83 ly
41 km/s
0.059 arcsec/year
-0.009 arcsec/year

Spectral properties of HR636

HR636 belongs to spectral class G8 and has a luminosity class of III corresponding to a giant star.

0.92
G8III
4996K

The red dot in the diagram below shows where HR636 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR636. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR636

SAO215794
SAO215794