We use cookies to deliver essential features and to measure their performance. By using this site you accept our Privacy Policies.
A Complete Guide to the Solar System and the Night Sky
Your support helps us pay the server bills » Donate
public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:35  
clear_day Transit: 12:10  
SunsetSet: 17:45
sunny DaytimeWhat's Visible Now?
All Constellations » Centaurus » 

HR4999

Altitude: -25.8°   Azimuth: 243.2°   Direction: West-South-West

HR4999 is a giant star in the constellation of Centaurus.

HR4999 visual magnitude is 6.19. Because of its reltive faintness, HR4999 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 HR4999 is -0.012 arcsec per year in Right Ascension and -0.015 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR4999 star
DSS2 image of HR4999. The red arrow shows the motion of HR4999 during the next 10000 years (-2.00 arcmin in Right Ascension and -2.50 arcmin in declination);

Key facts about HR4999

6.19
Giant

HR4999 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -25.8°
Azimuth: 243.2°
Direction: West-South-West

Celestial coordinates and finder chart of HR4999

HR4999 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 HR4999 are provided in the following table:

13h 15m 09s
-36° 22’ 15”
308.26°
26.26°
Centaurus

The simplified sky map below shows the position of HR4999 in the sky:

Finder chart HR4999 star
Simplified finder chart for HR4999.

Visibility of HR4999 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 HR4999 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: 126.4°
Max altitude: 2.1°
Azimuth: 233.6°

Distance of HR4999 from the Sun and relative movement

HR4999 is distant 464.39 light years from the Sun and it is moving towards the Sun at the speed of 4 kilometers per second.

142.45 pc
464.39 ly
-4 km/s
-0.012 arcsec/year
-0.015 arcsec/year

Spectral properties of HR4999

HR4999 belongs to spectral class K1 and has a luminosity class of III corresponding to a giant star.

0.42
K1III
4816K

The red dot in the diagram below shows where HR4999 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4999. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4999

SAO204282
SAO204282