HR1258

Altitude: -8.3° Azimuth: 112.0° Direction: East-South-East

HR1258 is a variable main-sequence star in the constellation of Eridanus.

HR1258 visual magnitude is 6.46. Because of its reltive faintness, HR1258 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 HR1258:

Color of HR1258 ⬤

Magnitude of HR1258 6.46

Class Main-sequence

VISIBILITY RIGHT NOW

HR1258 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -8.3°
Azimuth: 112.0°
Direction: East-South-East

Celestial coordinates and finder chart of HR1258

HR1258 is situated close to the celestial equator, as such, it is at least partly visible from both hemispheres in certain times of the year. Celestial coordinates for the J2000 equinox as well as galactic coordinates of HR1258 are provided in the following table:

Right Ascension J2000 04h 03m 24s

Declination J2000 -20° 08’ 39”

Galactic Longitude 214.57°

Galactic Latitude -45.74°

Constellation Eridanus

The simplified sky map below shows the position of HR1258 in the sky:

Simplified finder chart for HR1258.

Visibility of HR1258 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 HR1258 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: 110.1° RISE 19:20

Max altitude: 18.4° TRANSIT 23:29

Azimuth: 249.9° SET 3:41

Digitized Sky Survey image of HR1258

The image below is a photograph of HR1258 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 HR1258 is 0.003 arcsec per year in Right Ascension and -0.014 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR1258. The red arrow shows the motion of HR1258 during the next 10000 years (0.50 arcmin in Right Ascension and -2.33 arcmin in declination);

Distance of HR1258 from the Sun and relative movement

HR1258 is distant 956.01 light years from the Sun and it is moving far from the Sun at the speed of 20 kilometers per second.

Distance (parsec) 293.26 pc

Distance (light year) 956.01 ly

Heliocentric radial velocity 20 km/s

Proper Motion RA 0.003 arcsec/year

Proper Motion Dec -0.014 arcsec/year

Spectral properties of HR1258

HR1258 belongs to spectral class B2 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude -0.88

Spectral Type B2V

Color Index (B-V) -0.18

Temperature of HR1258 13121K

The red dot in the diagram below shows where HR1258 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR1258. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR1258

Henry Draper Catalogue HD25631

SAO Catalogue SAO169071

Hipparcos Catalogue HIP18926

Durchmusterung Catalogue BD-20 769

General Catalogue of Variable Stars Var?

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In Evidence

Other stars in Eridanus