HR2158

Altitude: -83.4° Azimuth: 13.2° Direction: North-North-East

HR2158 is a multiple main-sequence star in the constellation of Puppis.

HR2158 visual magnitude is 5.93. Because of its reltive faintness, HR2158 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 HR2158:

Color of HR2158 ⬤

Magnitude of HR2158 5.93

Class Main-sequence

VISIBILITY RIGHT NOW

HR2158 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -83.4°
Azimuth: 13.2°
Direction: North-North-East

Celestial coordinates and finder chart of HR2158

HR2158 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 HR2158 are provided in the following table:

Right Ascension J2000 06h 04m 40s

Declination J2000 -45° 04’ 44”

Galactic Longitude 252.18°

Galactic Latitude -26.76°

Constellation Puppis

The simplified sky map below shows the position of HR2158 in the sky:

Simplified finder chart for HR2158.

Visibility of HR2158 from your location

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

HR2158 is currently not visible from Greenwich, United Kingdom edit_location_alt

Digitized Sky Survey image of HR2158

The image below is a photograph of HR2158 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 HR2158 is -0.07 arcsec per year in Right Ascension and 0.255 arcsec per year in Declination and the associated displacement for the next 1000 years is represented with the red arrow.

DSS2 image of HR2158. The red arrow shows the motion of HR2158 during the next 1000 years (-1.17 arcmin in Right Ascension and 4.25 arcmin in declination);

Distance of HR2158 from the Sun and relative movement

HR2158 is distant 88.08 light years from the Sun and it is moving far from the Sun at the speed of 27 kilometers per second.

Distance (parsec) 27.02 pc

Distance (light year) 88.08 ly

Heliocentric radial velocity 27 km/s

Proper Motion RA -0.07 arcsec/year

Proper Motion Dec 0.255 arcsec/year

Spectral properties of HR2158

HR2158 belongs to spectral class F4 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude 3.77

Spectral Type F4V

Color Index (B-V) 0.49

Temperature of HR2158 6435K

The red dot in the diagram below shows where HR2158 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR2158. Attribution: Richard Powell / CC BY-SA

HR2158 star system properties

HR2158 is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the HR2158 double sysyem:

Main star magnitude 5.93

Secondary star magnitude 6.23

Magnitude difference 0.3

Separation 196.7 arcsec

Alternative designations of HR2158

Henry Draper Catalogue HD41742

SAO Catalogue SAO217706

Hipparcos Catalogue HIP28790

Durchmusterung Catalogue CD-45 2302

In Evidence

Other stars in Puppis