HR1911

HR1911 is a variable and double main-sequence star in the constellation of Orion.

HR1911 visual magnitude is 5.72. Because of its reltive faintness, HR1911 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 HR1911:

Color of HR1911 ⬤

Magnitude of HR1911 5.72

Class Main-sequence

VISIBILITY RIGHT NOW HR1911 is above the horizon from Greenwich, United Kingdom edit_location_alt. Altitude: 31°.

Celestial coordinates and finder chart of HR1911

HR1911 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 HR1911 are provided in the following table:

Right Ascension J2000 05h 36m 35s

Declination J2000 -06° 03’ 54”

Galactic Longitude 209.81°

Galactic Latitude -19.39°

Constellation Orion

The simplified sky map below shows the position of HR1911 in the sky:

Simplified finder chart for HR1911.

Visibility of HR1911 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 HR1911 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: 96.1° RISE 8:41

Max altitude: 32.5° TRANSIT 14:09

Azimuth: 263.9° SET 19:36

RIGHT NOW HR1911 is above the horizon from Greenwich, United Kingdom

Digitized Sky Survey image of HR1911

The image below is a photograph of HR1911 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 HR1911 is -0.005 arcsec per year in Right Ascension and -0.012 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

DSS2 image of HR1911. The red arrow shows the motion of HR1911 during the next 10000 years (-0.83 arcmin in Right Ascension and -2.00 arcmin in declination);

Distance of HR1911 from the Sun and relative movement

HR1911 is distant 1,917.65 light years from the Sun and it is moving far from the Sun at the speed of 28 kilometers per second.

Distance (parsec) 588.24 pc

Distance (light year) 1,917.65 ly

Heliocentric radial velocity 28 km/s

Proper Motion RA -0.005 arcsec/year

Proper Motion Dec -0.012 arcsec/year

Spectral properties of HR1911

HR1911 belongs to spectral class B1 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude -3.13

Spectral Type B1V

Color Index (B-V) -0.22

Temperature of HR1911 14087K

The red dot in the diagram below shows where HR1911 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR1911. Attribution: Richard Powell / CC BY-SA

HR1911 star system properties

HR1911 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR1911 double sysyem:

Main star magnitude 5.72

Secondary star magnitude 8.92

Magnitude difference 3.2

Separation 5.2 arcsec

Alternative designations of HR1911

Henry Draper Catalogue HD37209

SAO Catalogue SAO132359

Hipparcos Catalogue HIP26345

Durchmusterung Catalogue BD-06 1255

General Catalogue of Variable Stars 2433

Aitken Double Star Catalogue ADS4212

In Evidence

Other stars in Orion