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🌎  Greenwich, United Kingdom [change]

HR4806

HR4806 is a double supergiant star in the constellation of Musca.

HR4806 visual magnitude is 6.25. Because of its reltive faintness, HR4806 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 HR4806:

6.25
Supergiant
HR4806 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR4806

HR4806 is situated south of the celestial equator, as such, it is more easily visible from the southern emisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR4806 are provided in the following table:

12h 38m 52s
-67° 11’ 35”
301.71°
-4.35°
Musca

The simplified sky map below shows the position of HR4806 in the sky:

Finder chart HR4806 star
Simplified finder chart for HR4806.

Visibility of HR4806 from your location

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

HR4806 is currently not visible from Greenwich, United Kingdom [change]

Digitized Sky Survey image of HR4806

The image below is a photograph of HR4806 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 HR4806 is -0.006 arcsec per year in Right Ascension and -0.002 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

Image of HR4806 star
DSS2 image of HR4806. The red arrow shows the motion of HR4806 during the next 100000 years (-10.00 arcmin in Right Ascension and -3.33 arcmin in declination);

Distance of HR4806 from the Sun and relative movement

HR4806 is distant 108,666.67 light years from the Sun and it is moving towards the Sun at the speed of 16 kilometers per second.

33,333.33 pc
108,666.67 ly
-16 km/s
-0.006 arcsec/year
-0.002 arcsec/year

Spectral properties of HR4806

HR4806 belongs to spectral class B1 and has a luminosity class of I corresponding to a supergiant star.

-11.36
B1I
9434K

The red dot in the diagram below shows where HR4806 is situated in the HertzsprungÔÇôRussell diagram.

HR Diagram
H-R diagram showing the position of HR4806. Attribution: Richard Powell / CC BY-SA

HR4806 star system properties

HR4806 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 HR4806 double sysyem:

6.25
11.95
5.7
17 arcsec

Alternative designations of HR4806

SAO251980
SAO251980