Your Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 4:45  
clear_day Transit: 12:57  
SunsetSet: 21:09 south
sunny DaytimeWhat's Visible Now
All Constellations » Lacerta » 


Altitude: -0.4°   Azimuth: 350.0°   Direction: North

HR8549 is a double main-sequence star in the constellation of Lacerta.

HR8549 visual magnitude is 6.46. Because of its reltive faintness, HR8549 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 HR8549:


HR8549 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -0.4°
Azimuth: 350.0°
Direction: North

Celestial coordinates and finder chart of HR8549

HR8549 is situated north of the celestial equator, as such, it is more easily visible from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR8549 are provided in the following table:

22h 26m 45s
+37° 26’ 38”

The simplified sky map below shows the position of HR8549 in the sky:

Finder chart HR8549 star
Simplified finder chart for HR8549.

Visibility of HR8549 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 HR8549 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: 52.6°
Max altitude: 76.0°
Azimuth: 307.4°
HR8549 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR8549

The image below is a photograph of HR8549 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 HR8549 is 0.013 arcsec per year in Right Ascension and -0.003 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR8549 star
DSS2 image of HR8549. The red arrow shows the motion of HR8549 during the next 10000 years (2.17 arcmin in Right Ascension and -0.50 arcmin in declination);

Distance of HR8549 from the Sun and relative movement

HR8549 is distant 1,928.99 light years from the Sun and it is moving towards the Sun at the speed of 7 kilometers per second.

591.72 pc
1,928.99 ly
-7 km/s
0.013 arcsec/year
-0.003 arcsec/year

Spectral properties of HR8549

HR8549 belongs to spectral class B2 and has a luminosity class of V corresponding to a main-sequence star.


The red dot in the diagram below shows where HR8549 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR8549. Attribution: Richard Powell / CC BY-SA

HR8549 star system properties

HR8549 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR8549 double sysyem:

4.3 arcsec

Alternative designations of HR8549