75 Orionis

Below the horizon. Rise: 9:07 | Tran: 15:55 | Set: 22:44

Alt: -15.53° Az: 50.47° Direction: North-East

75 Orionis is a multiple main-sequence star of spectral class A2 in the constellation of Orion.

75 Orionis visual magnitude is 5.39. Because of its faintness, 75 Orionis 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 75 Orionis. The red arrow shows the motion of 75 Orionis during the next 10000 years (1.17 arcmin in Right Ascension and -10.17 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 06h 18m 30s

Declination +09° 55’ 53”

Hour Angle 15h 15m 53s

Sidereal Time 21h 34m 23s

J2000

Right Ascension 06h 17m 06s

Declination +09° 56’ 33”

Galactic Coordinates

Galactic Longitude 200.16°

Galactic Latitude -2.99°

Finder Chart

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Finder chart for 75 Orionis.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.39

Class Main-sequence

Absolute magnitude 0.93

Spectral Type A2V

Color Index (B-V) 0.1

Temperature 9028K

The red dot in the diagram below shows where 75 Orionis is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 75 Orionis. Attribution: Richard Powell / CC BY-SA

Star System Properties

75 Orionis 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 75 Orionis double sysyem:

Main star magnitude 5.39

Secondary star magnitude 5.59

Magnitude difference 0.2

Separation 0.1 arcsec

Distance, Radial Speed, Proper Motion

75 Orionis is distant 253.70 light years from the Sun and it is moving far from the Sun at the speed of 12 kilometers per second.

Distance (parsec) 77.82

Distance (light year) 253.70

Radial Speed 12 km/s

Proper Motion RA 0.007 arcsec/y

Proper Motion Dec -0.061"/y

Alternative Designations

Flamsteed designation 75 Orionis

Henry Draper Catalogue HD43525

SAO Catalogue SAO113675

Hipparcos Catalogue HIP29850

Durchmusterung Catalogue BD+09 1173

FK5 Catalogue 2480

Aitken Double Star Catalogue ADS4890

Visibility from Your Location

Today's 75 Orionis rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 80.1° RISE 9:07

Max altitude: 48.5° TRANSIT 15:55

Azimuth: 279.9° SET 22:44

Set Location

Other stars in Orion