HR3758

Below the horizon. Rise: 4:59 | Tran: 10:50 | Set: 16:42

Alt: -37.71° Az: 22.66° Direction: North-North-East

HR3758 is a double hypergiant star of spectral class F0 in the constellation of Hydra.

HR3758 visual magnitude is 6.27. Because of its faintness, HR3758 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 HR3758. The red arrow shows the motion of HR3758 during the next 10000 years (-12.17 arcmin in Right Ascension and 0.17 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 09h 30m 17s

Declination -01° 21’ 57”

Hour Angle 13h 11m 00s

Sideral Time 22h 41m 18s

J2000

Right Ascension 09h 29m 02s

Declination -01° 15’ 24”

Galactic Coordinates

Galactic Longitude 234.73°

Galactic Latitude 33.7°

Finder Chart

Simplified finder chart for HR3758.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.27

Class Hypergiant

Absolute magnitude 1.47

Spectral Type F0V

Color Index (B-V) 0.27

Temperature 7658K

The red dot in the diagram below shows where HR3758 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR3758. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR3758 is a visual double star which can be observed with the help of large telescopes. The table below shows key information about the HR3758 double sysyem:

Main star magnitude 6.27

Secondary star magnitude 11.27

Magnitude difference 5

Separation 1.3 arcsec

Distance, Radial Speed, Proper Motion

HR3758 is distant 297.45 light years from the Sun

Distance (parsec) 91.24

Distance (light year) 297.45

Proper Motion RA -0.073 arcsec/y

Proper Motion Dec 0.001"/y

Alternative Designations

Henry Draper Catalogue HD81980

SAO Catalogue SAO136894

Hipparcos Catalogue HIP46504

Durchmusterung Catalogue BD-00 2201

Aitken Double Star Catalogue ADS7396

Visibility from Your Location

Today's HR3758 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 91.4° RISE 4:59

Max altitude: 37.2° TRANSIT 10:50

Azimuth: 268.6° SET 16:42

Name:	Greenwich, UK
Latitude:	51° 28' 48.0" N
Longitude:	0° 0' 0.0" E
Timezone:	Europe/London

Location

Other stars in Hydra