HR3155

Altitude: -45.0° Azimuth: 263.6° Direction: West

HR3155 is a variable giant star in the constellation of Puppis.

HR3155 visual magnitude is 6.34. Because of its reltive faintness, HR3155 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 HR3155:

Color of HR3155 ⬤

Magnitude of HR3155 6.34

Class Giant

VISIBILITY RIGHT NOW

HR3155 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -45.0°
Azimuth: 263.6°
Direction: West

Celestial coordinates and finder chart of HR3155

HR3155 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 HR3155 are provided in the following table:

Right Ascension J2000 08h 02m 06s

Declination J2000 -37° 03’ 02”

Galactic Longitude 253.31°

Galactic Latitude -3.39°

Constellation Puppis

The simplified sky map below shows the position of HR3155 in the sky:

Simplified finder chart for HR3155.

Visibility of HR3155 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 HR3155 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: 127.1° RISE 14:57

Max altitude: 1.5° TRANSIT 16:10

Azimuth: 232.9° SET 17:24

RIGHT NOW HR3155 is below the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR3155

The image below is a photograph of HR3155 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 HR3155 is 0.016 arcsec per year in Right Ascension and -0.003 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR3155. The red arrow shows the motion of HR3155 during the next 10000 years (2.67 arcmin in Right Ascension and -0.50 arcmin in declination);

Distance of HR3155 from the Sun and relative movement

HR3155 is distant 823.23 light years from the Sun and it is moving far from the Sun at the speed of 59 kilometers per second.

Distance (parsec) 252.53 pc

Distance (light year) 823.23 ly

Heliocentric radial velocity 59 km/s

Proper Motion RA 0.016 arcsec/year

Proper Motion Dec -0.003 arcsec/year

Spectral properties of HR3155

HR3155 belongs to spectral class M1 and has a luminosity class of III corresponding to a giant star.

Absolute magnitude -0.67

Spectral Type M1III

Color Index (B-V) 1.62

Temperature of HR3155 3622K

The red dot in the diagram below shows where HR3155 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR3155. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR3155

Henry Draper Catalogue HD66435

SAO Catalogue SAO198725

Hipparcos Catalogue HIP39299

Durchmusterung Catalogue CD-36 4120

General Catalogue of Variable Stars 3872

In Evidence

Other stars in Puppis