HR3129

HR3129 is a variable and multiple main-sequence star in the constellation of Puppis.

HR3129 visual magnitude is 4.41. Because of its moderate brightness, HR3129 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 HR3129:

Color of HR3129 ⬤

Magnitude of HR3129 4.41

Class Main-sequence

VISIBILITY RIGHT NOW HR3129 is below the horizon from Greenwich, United Kingdom [change].

Celestial coordinates and finder chart of HR3129

HR3129 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 HR3129 are provided in the following table:

Right Ascension J2000 07h 58m 14s

Declination J2000 -49° 14’ 41”

Galactic Longitude 263.48°

Galactic Latitude -10.28°

Constellation Puppis

The simplified sky map below shows the position of HR3129 in the sky:

Simplified finder chart for HR3129.

Visibility of HR3129 from your location

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

HR3129 is currently not visible from Greenwich, United Kingdom [change]

Digitized Sky Survey image of HR3129

The image below is a photograph of HR3129 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 HR3129 is -0.011 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.

DSS2 image of HR3129. The red arrow shows the motion of HR3129 during the next 10000 years (-1.83 arcmin in Right Ascension and 1.33 arcmin in declination);

Distance of HR3129 from the Sun and relative movement

HR3129 is distant 1,164.29 light years from the Sun and it is moving far from the Sun at the speed of 19 kilometers per second.

Distance (parsec) 357.14 pc

Distance (light year) 1,164.29 ly

Heliocentric radial velocity 19 km/s

Proper Motion RA -0.011 arcsec/year

Proper Motion Dec 0.008 arcsec/year

Spectral properties of HR3129

HR3129 belongs to spectral class B1 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude -3.35

Spectral Type B1V

Color Index (B-V) -0.17

Temperature of HR3129 12902K

The red dot in the diagram below shows where HR3129 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR3129. Attribution: Richard Powell / CC BY-SA

HR3129 star system properties

HR3129 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR3129 double sysyem:

Main star magnitude 4.41

Secondary star magnitude 10.31

Magnitude difference 5.9

Separation 39.2 arcsec

Alternative designations of HR3129

Henry Draper Catalogue HD65818

SAO Catalogue SAO219226

Hipparcos Catalogue HIP38957

Durchmusterung Catalogue CD-48 3349

General Catalogue of Variable Stars V Pup

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In Evidence

Other stars in Puppis