HR1918

Altitude: 3.6° Azimuth: 255.8° Direction: West-South-West

HR1918 is a variable main-sequence star in the constellation of Orion.

HR1918 visual magnitude is 6.05. Because of its reltive faintness, HR1918 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 HR1918:

Color of HR1918 ⬤

Magnitude of HR1918 6.05

Class Main-sequence

VISIBILITY RIGHT NOW

HR1918 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 3.6°
Azimuth: 255.8°
Direction: West-South-West

Celestial coordinates and finder chart of HR1918

HR1918 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 HR1918 are provided in the following table:

Right Ascension J2000 05h 37m 27s

Declination J2000 -05° 56’ 17”

Galactic Longitude 209.79°

Galactic Latitude -19.15°

Constellation Orion

The simplified sky map below shows the position of HR1918 in the sky:

Simplified finder chart for HR1918.

Visibility of HR1918 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 HR1918 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: 95.9° RISE 19:34

Max altitude: 32.6° TRANSIT 1:06

Azimuth: 264.1° SET 6:34

Digitized Sky Survey image of HR1918

The image below is a photograph of HR1918 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 HR1918 is 0.015 arcsec per year in Right Ascension and 0.002 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR1918. The red arrow shows the motion of HR1918 during the next 10000 years (2.50 arcmin in Right Ascension and 0.33 arcmin in declination);

Distance of HR1918 from the Sun and relative movement

HR1918 is distant 1,358.33 light years from the Sun and it is moving far from the Sun at the speed of 29 kilometers per second.

Distance (parsec) 416.67 pc

Distance (light year) 1,358.33 ly

Heliocentric radial velocity 29 km/s

Proper Motion RA 0.015 arcsec/year

Proper Motion Dec 0.002 arcsec/year

Spectral properties of HR1918

HR1918 belongs to spectral class B1 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude -2.05

Spectral Type B1V

Color Index (B-V) -0.22

Temperature of HR1918 14087K

The red dot in the diagram below shows where HR1918 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR1918. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR1918

Henry Draper Catalogue HD37303

SAO Catalogue SAO132375

Hipparcos Catalogue HIP26427

Durchmusterung Catalogue BD-06 1262

General Catalogue of Variable Stars 2467

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In Evidence

Other stars in Orion