HR3812

Below the horizon. Rise: 6:48 | Tran: 14:40 | Set: 22:29

Alt: -18.41° Az: 163.23° Direction: South-South-East

HR3812 is a double hypergiant star of spectral class F0 in the constellation of Antlia.

HR3812 visual magnitude is 6.43. Because of its faintness, HR3812 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 HR3812. The red arrow shows the motion of HR3812 during the next 10000 years (-4.83 arcmin in Right Ascension and 8.17 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 09h 34m 09s

Declination -39° 14’ 34”

Hour Angle 13h 22m 47s

Sidereal Time 22h 56m 56s

J2000

Right Ascension 09h 33m 07s

Declination -39° 07’ 44”

Galactic Coordinates

Galactic Longitude 266.19°

Galactic Latitude 9.2°

Finder Chart

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Finder chart for HR3812.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.43

Class Hypergiant

Absolute magnitude 2.12

Spectral Type F0IV

Color Index (B-V) 0.33

Temperature 7276K

The red dot in the diagram below shows where HR3812 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR3812. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR3812 is a visual double star which can be observed with binoculars or small telescopes. The table below shows key information about the HR3812 double sysyem:

Main star magnitude 6.43

Secondary star magnitude 9.93

Magnitude difference 3.5

Separation 55.2 arcsec

Distance, Radial Speed, Proper Motion

HR3812 is distant 237.09 light years from the Sun and it is moving far from the Sun at the speed of 25 kilometers per second.

Distance (parsec) 72.73

Distance (light year) 237.09

Radial Speed 25 km/s

Proper Motion RA -0.029 arcsec/y

Proper Motion Dec 0.049"/y

Alternative Designations

Henry Draper Catalogue HD82785

SAO Catalogue SAO200492

Hipparcos Catalogue HIP46874

Durchmusterung Catalogue CD-38 5676

Visibility from Your Location

Today's HR3812 rise, transit and set times from South Grafton, Australia are the following (all times relative to the local timezone Australia/Sydney):

Azimuth: 129.2° RISE 6:48

Max altitude: 80.5° TRANSIT 14:40

Azimuth: 230.8° SET 22:29

Name:	South Grafton, Australia
Latitude:	29° 42' 27.4" S
Longitude:	152° 55' 33.6" E
Timezone:	Australia/Sydney

Set Location

Other stars in Antlia