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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: 7:38  
clear_day Transit: 11:46  
SunsetSet: 15:54 south
sleep NighttimeWhat's Visible Now?
All Constellations » Camelopardalis » 

HR1129

Altitude: 60.0°   Azimuth: 46.0°   Direction: North-East

HR1129 is a double hypergiant star in the constellation of Camelopardalis.

HR1129 visual magnitude is 4.8. Because of its moderate brightness, HR1129 should be easily visible from locations with dark skyes, while it can be barely visible, or not visible at all, from skyes affected by light pollution.

The table below summarizes the key facts about HR1129:

4.8
Hypergiant

HR1129 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 60.0°
Azimuth: 46.0°
Direction: North-East

Celestial coordinates and finder chart of HR1129

HR1129 is situated close to the northern celestial pole and, as such, it is visible for most part of the year from the northern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR1129 are provided in the following table:

03h 46m 02s
+63° 20’ 41”
141.1°
6.81°
Camelopardalis

The simplified sky map below shows the position of HR1129 in the sky:

Finder chart HR1129 star
Simplified finder chart for HR1129.

Visibility of HR1129 from your location

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

HR1129 is circumpolar and transits at 23:11 UTC (altitude: 78.1°)

Digitized Sky Survey image of HR1129

The image below is a photograph of HR1129 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 HR1129 is -0.004 arcsec per year in Right Ascension and -0.013 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of HR1129 star
DSS2 image of HR1129. The red arrow shows the motion of HR1129 during the next 10000 years (-0.67 arcmin in Right Ascension and -2.17 arcmin in declination);

Distance of HR1129 from the Sun and relative movement

HR1129 is distant 799.02 light years from the Sun and it is moving towards the Sun at the speed of 2 kilometers per second.

245.10 pc
799.02 ly
-2 km/s
-0.004 arcsec/year
-0.013 arcsec/year

Spectral properties of HR1129

HR1129 belongs to spectral class G0 and has a luminosity class of III corresponding to a hypergiant star.

-2.15
G0III
5281K

The red dot in the diagram below shows where HR1129 is situated in the Hertzsprungā€“Russell diagram.

HR Diagram
H-R diagram showing the position of HR1129. Attribution: Richard Powell / CC BY-SA

HR1129 star system properties

HR1129 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 HR1129 double sysyem:

4.8
5.8
1
0.1 arcsec

Alternative designations of HR1129

SAO12891
SAO12891