HR2222

Below the horizon. Rise: 22:41 | Tran: 5:55 | Set: 13:05

Alt: -7.29° Az: 303.23° Direction: West-North-West

HR2222 is a variable and double main-sequence star of spectral class B1 in the constellation of Orion.

HR2222 visual magnitude is 5.91. Because of its faintness, HR2222 is visible to the naked eye only from locations with very dark skies, while it is not visible at all from skies affected by light pollution.

DSS2 image of HR2222. The red arrow shows the motion of HR2222 during the next 10000 years (3.83 arcmin in Right Ascension and 1.00 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 06h 16m 32s

Declination +13° 50’ 29”

Hour Angle 08h 05m 11s

Sideral Time 14h 21m 44s

J2000

Right Ascension 06h 15m 08s

Declination +13° 51’ 03”

Galactic Coordinates

Galactic Longitude 196.49°

Galactic Latitude -1.55°

Finder Chart

Simplified finder chart for HR2222.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.91

Class Main-sequence

Absolute magnitude -2.21

Spectral Type B1V

Color Index (B-V) -0.23

Temperature 14354K

The red dot in the diagram below shows where HR2222 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR2222. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR2222 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 HR2222 double sysyem:

Main star magnitude 5.91

Secondary star magnitude 12.51

Magnitude difference 6.6

Separation 21.3 arcsec

Distance, Radial Speed, Proper Motion

HR2222 is distant 1,369.75 light years from the Sun and it is moving far from the Sun at the speed of 36 kilometers per second.

Distance (parsec) 420.17

Distance (light year) 1,369.75

Radial Speed 36 km/s

Proper Motion RA 0.023 arcsec/y

Proper Motion Dec 0.006"/y

Alternative Designations

Henry Draper Catalogue HD43112

SAO Catalogue SAO95444

Hipparcos Catalogue HIP29678

Durchmusterung Catalogue BD+13 1173

FK5 Catalogue 2474

General Catalogue of Variable Stars 2878

Visibility from Your Location

Today's HR2222 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 76.2° RISE 22:41

Max altitude: 52.4° TRANSIT 5:55

Azimuth: 283.8° SET 13:05

Set Location

Other stars in Orion