HR1890

Altitude: 15.3° Azimuth: 118.3° Direction: East-South-East

HR1890 is a variable main-sequence star in the constellation of Orion.

HR1890 visual magnitude is 6.56. Because of its reltive faintness, HR1890 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 HR1890:

Color of HR1890 ⬤

Magnitude of HR1890 6.56

Class Main-sequence

VISIBILITY RIGHT NOW

HR1890 is above the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: 15.3°
Azimuth: 118.3°
Direction: East-South-East

Celestial coordinates and finder chart of HR1890

HR1890 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 HR1890 are provided in the following table:

Right Ascension J2000 05h 35m 21s

Declination J2000 -04° 29’ 35”

Galactic Longitude 208.18°

Galactic Latitude -18.96°

Constellation Orion

The simplified sky map below shows the position of HR1890 in the sky:

Simplified finder chart for HR1890.

Visibility of HR1890 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 HR1890 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: 94.5° RISE 18:49

Max altitude: 34.0° TRANSIT 0:29

Azimuth: 265.5° SET 6:04

Digitized Sky Survey image of HR1890

The image below is a photograph of HR1890 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 HR1890 is -0.011 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 HR1890. The red arrow shows the motion of HR1890 during the next 10000 years (-1.83 arcmin in Right Ascension and 5.00 arcmin in declination);

Distance of HR1890 from the Sun and relative movement

HR1890 is distant 1,216.42 light years from the Sun and it is moving far from the Sun at the speed of 29 kilometers per second.

Distance (parsec) 373.13 pc

Distance (light year) 1,216.42 ly

Heliocentric radial velocity 29 km/s

Proper Motion RA -0.011 arcsec/year

Proper Motion Dec 0.03 arcsec/year

Spectral properties of HR1890

HR1890 belongs to spectral class B1 and has a luminosity class of V corresponding to a main-sequence star.

Absolute magnitude -1.30

Spectral Type B1V

Color Index (B-V) -0.13

Temperature of HR1890 12103K

The red dot in the diagram below shows where HR1890 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR1890. Attribution: Richard Powell / CC BY-SA

Alternative designations of HR1890

Henry Draper Catalogue HD37017

SAO Catalogue SAO132317

Hipparcos Catalogue HIP26233

Durchmusterung Catalogue BD-04 1183

General Catalogue of Variable Stars V1046 Ori

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In Evidence

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