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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: 16.4°   Azimuth: 192.9°   Direction: South-South-West

HR8457 is a main-sequence star in the constellation of Aquarius.

HR8457 visual magnitude is 6.09. Because of its reltive faintness, HR8457 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 HR8457 is 0.122 arcsec per year in Right Ascension and -0.033 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

Image of HR8457 star
DSS2 image of HR8457. The red arrow shows the motion of HR8457 during the next 1000 years (2.03 arcmin in Right Ascension and -0.55 arcmin in declination);

Key facts about HR8457


HR8457 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 16.4°
Azimuth: 192.9°
Direction: South-South-West

Celestial coordinates and finder chart of HR8457

HR8457 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 HR8457 are provided in the following table:

22h 11m 02s
-21° 13’ 57”

The simplified sky map below shows the position of HR8457 in the sky:

Finder chart HR8457 star
Simplified finder chart for HR8457.

Visibility of HR8457 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 HR8457 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: 111.2°
Max altitude: 17.3°
Azimuth: 248.8°

Distance of HR8457 from the Sun and relative movement

HR8457 is distant 184.81 light years from the Sun and it is moving towards the Sun at the speed of 13 kilometers per second.

56.69 pc
184.81 ly
-13 km/s
0.122 arcsec/year
-0.033 arcsec/year

Spectral properties of HR8457

HR8457 belongs to spectral class F6 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR8457 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR8457. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR8457