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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: 6:40  
clear_day Transit: 12:10  
SunsetSet: 17:41
sunny DaytimeWhat's Visible Now?
All Constellations » Aquarius » 


Altitude: 22.8°   Azimuth: 141.2°   Direction: South-East

HR8645 is a multiple main-sequence star in the constellation of Aquarius.

HR8645 visual magnitude is 6.45. Because of its reltive faintness, HR8645 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 HR8645 is 0.024 arcsec per year in Right Ascension and -0.006 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR8645 star
DSS2 image of HR8645. The red arrow shows the motion of HR8645 during the next 10000 years (4.00 arcmin in Right Ascension and -1.00 arcmin in declination);

Key facts about HR8645


HR8645 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 22.8°
Azimuth: 141.2°
Direction: South-East

Celestial coordinates and finder chart of HR8645

HR8645 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 HR8645 are provided in the following table:

22h 43m 03s
-08° 18’ 42”

The simplified sky map below shows the position of HR8645 in the sky:

Finder chart HR8645 star
Simplified finder chart for HR8645.

Visibility of HR8645 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 HR8645 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: 98.3°
Max altitude: 30.2°
Azimuth: 261.7°

Distance of HR8645 from the Sun and relative movement

HR8645 is distant 617.42 light years from the Sun and it is moving far from the Sun at the speed of 5 kilometers per second.

189.39 pc
617.42 ly
5 km/s
0.024 arcsec/year
-0.006 arcsec/year

Spectral properties of HR8645

HR8645 belongs to spectral class A5 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR8645 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR8645. Attribution: Richard Powell / CC BY-SA

HR8645 star system properties

HR8645 is a visual double star which can be observed with the help of medium or large telescopes. The table below shows key information about the HR8645 double sysyem:

2.5 arcsec

Alternative designations of HR8645