HR1129

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:

Color of HR1129 ⬤

Magnitude of HR1129 4.8

Class Hypergiant

VISIBILITY RIGHT NOW HR1129 is above the horizon from Greenwich, United Kingdom [change]. Altitude: 25°.

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:

Right Ascension J2000 03h 46m 02s

Declination J2000 +63° 20’ 41”

Galactic Longitude 141.1°

Galactic Latitude 6.81°

Constellation Camelopardalis

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

Simplified finder chart for HR1129.

Visibility of HR1129 from your location

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

HR1129 is circumpolar and transits at 15:15 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.

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.

Distance (parsec) 245.10 pc

Distance (light year) 799.02 ly

Heliocentric radial velocity -2 km/s

Proper Motion RA -0.004 arcsec/year

Proper Motion Dec -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.

Absolute magnitude -2.15

Spectral Type G0III

Color Index (B-V) 0.8

Temperature of HR1129 5281K

The red dot in the diagram below shows where HR1129 is situated in the Hertzsprung–Russell 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:

Main star magnitude 4.8

Secondary star magnitude 5.8

Magnitude difference 1

Separation 0.1 arcsec

Alternative designations of HR1129

Henry Draper Catalogue HD23089

SAO Catalogue SAO12891

Hipparcos Catalogue HIP17587

Durchmusterung Catalogue BD+62 604

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In Evidence

Other stars in Camelopardalis