ο Puppis (omicron Puppis)

ο Puppis is a variable and double hypergiant star in the constellation of Puppis.

ο Puppis visual magnitude is 4.5. Because of its moderate brightness, ο Puppis 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 ο Puppis:

Color of ο Puppis ⬤

Magnitude of ο Puppis 4.5

Class Hypergiant

VISIBILITY RIGHT NOW ο Puppis (omicron Puppis) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Celestial coordinates and finder chart of ο Puppis

ο Puppis 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 ο Puppis are provided in the following table:

Right Ascension J2000 07h 48m 05s

Declination J2000 -25° 56’ 13”

Galactic Longitude 242.25°

Galactic Latitude -0.21°

Constellation Puppis

The simplified sky map below shows the position of ο Puppis in the sky:

Finder chart ο Puppis (omicron Puppis) star

Simplified finder chart for ο Puppis (omicron Puppis).

Visibility of ο Puppis 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 ο Puppis (omicron Puppis) 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: 115.9° RISE 12:56

Max altitude: 12.6° TRANSIT 16:24

Azimuth: 244.1° SET 19:52

RIGHT NOW ο Puppis (omicron Puppis) is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of ο Puppis

The image below is a photograph of ο Puppis 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 ο Puppis is -0.009 arcsec per year in Right Ascension and 0.006 arcsec per year in Declination and the associated displacement for the next 100000 years is represented with the red arrow.

DSS2 image of ο Puppis. The red arrow shows the motion of ο Puppis during the next 100000 years (-15.00 arcmin in Right Ascension and 10.00 arcmin in declination);

Distance of ο Puppis from the Sun and relative movement

ο Puppis is distant 2,469.70 light years from the Sun and it is moving far from the Sun at the speed of 15 kilometers per second.

Distance (parsec) 757.58 pc

Distance (light year) 2,469.70 ly

Heliocentric radial velocity 15 km/s

Proper Motion RA -0.009 arcsec/year

Proper Motion Dec 0.006 arcsec/year

Spectral properties of ο Puppis

ο Puppis belongs to spectral class B0 and has a luminosity class of V corresponding to a hypergiant star.

Absolute magnitude -4.90

Spectral Type B0V

Color Index (B-V) -0.05

Temperature of ο Puppis 10795K

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

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

ο Puppis star system properties

ο Puppis 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 ο Puppis double sysyem:

Main star magnitude 4.5

Secondary star magnitude 12.5

Magnitude difference 8

Separation 27 arcsec

Alternative designations of ο Puppis

Bayer designation ο Puppis
(omicron Puppis)

Henry Draper Catalogue HD63462

SAO Catalogue SAO174558

Hipparcos Catalogue HIP38070

Durchmusterung Catalogue CD-25 5081

General Catalogue of Variable Stars 3745

Aitken Double Star Catalogue ADS6384

In Evidence

Other stars in Puppis