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🌎  Greenwich, United Kingdom [change]

HR4985

HR4985 is a double main-sequence star in the constellation of Centaurus.

HR4985 visual magnitude is 5.89. Because of its reltive faintness, HR4985 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 HR4985:

5.89
Main-sequence
HR4985 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR4985

HR4985 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 HR4985 are provided in the following table:

13h 13m 23s
-50° 42’ 00”
306.48°
12.02°
Centaurus

The simplified sky map below shows the position of HR4985 in the sky:

Finder chart HR4985 star
Simplified finder chart for HR4985.

Visibility of HR4985 from your location

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

HR4985 is currently not visible from Greenwich, United Kingdom [change]

Digitized Sky Survey image of HR4985

The image below is a photograph of HR4985 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 HR4985 is -0.019 arcsec per year in Right Ascension and -0.027 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR4985 star
DSS2 image of HR4985. The red arrow shows the motion of HR4985 during the next 10000 years (-3.17 arcmin in Right Ascension and -4.50 arcmin in declination);

Distance of HR4985 from the Sun and relative movement

HR4985 is distant 328.63 light years from the Sun and it is moving towards the Sun at the speed of 1 kilometers per second.

100.81 pc
328.63 ly
-1 km/s
-0.019 arcsec/year
-0.027 arcsec/year

Spectral properties of HR4985

HR4985 belongs to spectral class B9 and has a luminosity class of V corresponding to a main-sequence star.

0.87
B9V
10382K

The red dot in the diagram below shows where HR4985 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4985. Attribution: Richard Powell / CC BY-SA

HR4985 star system properties

HR4985 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 HR4985 double sysyem:

5.89
6.19
0.3
0.3 arcsec

Alternative designations of HR4985

SAO240655
SAO240655