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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
north SunriseRise: 7:50  
clear_day Transit: 11:50  
SunsetSet: 15:49 south
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All Constellations » Carina » 


Altitude: -71.6°   Azimuth: 155.1°   Direction: South-South-East

HR4129 is a variable sub-giant star in the constellation of Carina.

HR4129 visual magnitude is 6.19. Because of its reltive faintness, HR4129 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 HR4129:


HR4129 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -71.6°
Azimuth: 155.1°
Direction: South-South-East

Celestial coordinates and finder chart of HR4129

HR4129 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 HR4129 are provided in the following table:

10h 30m 08s
-66° 59’ 05”

The simplified sky map below shows the position of HR4129 in the sky:

Finder chart HR4129 star
Simplified finder chart for HR4129.

Visibility of HR4129 from your location

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

HR4129 is currently not visible from Greenwich, United Kingdom edit_location_alt

Digitized Sky Survey image of HR4129

The image below is a photograph of HR4129 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 HR4129 is -0.025 arcsec per year in Right Ascension and -0.008 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR4129 star
DSS2 image of HR4129. The red arrow shows the motion of HR4129 during the next 10000 years (-4.17 arcmin in Right Ascension and -1.33 arcmin in declination);

Distance of HR4129 from the Sun and relative movement

HR4129 is distant 1,234.85 light years from the Sun and it is moving towards the Sun at the speed of 8 kilometers per second.

378.79 pc
1,234.85 ly
-8 km/s
-0.025 arcsec/year
-0.008 arcsec/year

Spectral properties of HR4129

HR4129 belongs to spectral class B4 and has a luminosity class of IV corresponding to a sub-giant star.


The red dot in the diagram below shows where HR4129 is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of HR4129. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR4129