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: 4:50  
clear_day Transit: 12:56  
SunsetSet: 21:03 south
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All Constellations » Musca » 


HR4492 is a variable and multiple giant star in the constellation of Musca.

HR4492 visual magnitude is 5.17. Because of its reltive faintness, HR4492 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 HR4492:

HR4492 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of HR4492

HR4492 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 HR4492 are provided in the following table:

11h 39m 29s
-65° 23’ 52”

The simplified sky map below shows the position of HR4492 in the sky:

Finder chart HR4492 star
Simplified finder chart for HR4492.

Visibility of HR4492 from your location

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

HR4492 is currently not visible from Greenwich, United Kingdom edit_location_alt

Digitized Sky Survey image of HR4492

The image below is a photograph of HR4492 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 HR4492 is -0.042 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 HR4492 star
DSS2 image of HR4492. The red arrow shows the motion of HR4492 during the next 10000 years (-7.00 arcmin in Right Ascension and -1.00 arcmin in declination);

Distance of HR4492 from the Sun and relative movement

HR4492 is distant 561.10 light years from the Sun and it is moving far from the Sun at the speed of 14 kilometers per second.

172.12 pc
561.10 ly
14 km/s
-0.042 arcsec/year
-0.006 arcsec/year

Spectral properties of HR4492

HR4492 belongs to spectral class G2 and has a luminosity class of III corresponding to a giant star.


The red dot in the diagram below shows where HR4492 is situated in the HertzsprungÔÇôRussell diagram.

HR Diagram
H-R diagram showing the position of HR4492. Attribution: Richard Powell / CC BY-SA

HR4492 star system properties

HR4492 is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the HR4492 double sysyem:

0.2 arcsec

Alternative designations of HR4492