HR1959

Altitude: -22.3° Azimuth: 295.3° Direction: West-North-West

HR1959 is a double sub-giant star in the constellation of Orion.

HR1959 visual magnitude is 6.42. Because of its reltive faintness, HR1959 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 HR1959:

Color of HR1959 ⬤

Magnitude of HR1959 6.42

Class Sub-giant

VISIBILITY RIGHT NOW

HR1959 is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -22.3°
Azimuth: 295.3°
Direction: West-North-West

Celestial coordinates and finder chart of HR1959

HR1959 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 HR1959 are provided in the following table:

Right Ascension J2000 05h 41m 40s

Declination J2000 -02° 53’ 45”

Galactic Longitude 207.44°

Galactic Latitude -16.83°

Constellation Orion

The simplified sky map below shows the position of HR1959 in the sky:

Simplified finder chart for HR1959.

Visibility of HR1959 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 HR1959 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: 92.9° RISE 0:03

Max altitude: 35.6° TRANSIT 5:51

Azimuth: 267.1° SET 11:34

Digitized Sky Survey image of HR1959

The image below is a photograph of HR1959 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 HR1959 is 0.041 arcsec per year in Right Ascension and 0.03 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR1959. The red arrow shows the motion of HR1959 during the next 10000 years (6.83 arcmin in Right Ascension and 5.00 arcmin in declination);

Distance of HR1959 from the Sun and relative movement

HR1959 is distant 272.80 light years from the Sun and it is moving far from the Sun at the speed of 30 kilometers per second.

Distance (parsec) 83.68 pc

Distance (light year) 272.80 ly

Heliocentric radial velocity 30 km/s

Proper Motion RA 0.041 arcsec/year

Proper Motion Dec 0.03 arcsec/year

Spectral properties of HR1959

HR1959 belongs to spectral class A9 and has a luminosity class of IV corresponding to a sub-giant star.

Absolute magnitude 1.81

Spectral Type A9IV

Color Index (B-V) 0.3

Temperature of HR1959 7462K

The red dot in the diagram below shows where HR1959 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR1959. Attribution: Richard Powell / CC BY-SA

HR1959 star system properties

HR1959 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 HR1959 double sysyem:

Main star magnitude 6.42

Secondary star magnitude 7.32

Magnitude difference 0.9

Separation 0.1 arcsec

Alternative designations of HR1959

Henry Draper Catalogue HD37904

SAO Catalogue SAO132465

Hipparcos Catalogue HIP26820

Durchmusterung Catalogue BD-02 1346

Aitken Double Star Catalogue ADS4279

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In Evidence

Other stars in Orion