HR1812

Above the horizon. Rise: 7:16 | Tran: 11:28 | Set: 15:40

Alt: 3.70° Az: 128.54° Direction: South-East

HR1812 is a double main-sequence star of spectral class F2 in the constellation of Lepus.

HR1812 visual magnitude is 5.89. Because of its faintness, HR1812 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 HR1812. The red arrow shows the motion of HR1812 during the next 10000 years (0.67 arcmin in Right Ascension and -3.67 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 05h 27m 06s

Declination -19° 40’ 29”

Hour Angle 20h 16m 01s

Sidereal Time 01h 43m 07s

J2000

Right Ascension 05h 25m 59s

Declination -19° 41’ 44”

Galactic Coordinates

Galactic Longitude 222.23°

Galactic Latitude -27.31°

Finder Chart

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Finder chart for HR1812.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.89

Class Main-sequence

Absolute magnitude 2.72

Spectral Type F2V

Color Index (B-V) 0.4

Temperature 6880K

The red dot in the diagram below shows where HR1812 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR1812. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR1812 is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the HR1812 double sysyem:

Main star magnitude 5.89

Secondary star magnitude 8.69

Magnitude difference 2.8

Separation 27 arcsec

Distance, Radial Speed, Proper Motion

HR1812 is distant 140.28 light years from the Sun and it is moving far from the Sun at the speed of 6 kilometers per second.

Distance (parsec) 43.03

Distance (light year) 140.28

Radial Speed 6 km/s

Proper Motion RA 0.004 arcsec/y

Proper Motion Dec -0.022"/y

Alternative Designations

Henry Draper Catalogue HD35736

SAO Catalogue SAO150442

Hipparcos Catalogue HIP25397

Durchmusterung Catalogue BD-19 1173

Aitken Double Star Catalogue ADS4034

Visibility from Your Location

Today's HR1812 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 109.7° RISE 7:16

Max altitude: 18.8° TRANSIT 11:28

Azimuth: 250.3° SET 15:40

Set Location

Other stars in Lepus