HR3770

Below the horizon. Rise: 5:55 | Tran: 9:17 | Set: 12:39

Alt: -59.66° Az: 44.10° Direction: North-East

HR3770 is a double giant star of spectral class K3 in the constellation of Antlia.

HR3770 visual magnitude is 5.48. Because of its faintness, HR3770 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 HR3770. The red arrow shows the motion of HR3770 during the next 10000 years (-3.67 arcmin in Right Ascension and 0.33 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 09h 31m 00s

Declination -26° 41’ 57”

Hour Angle 13h 32m 41s

Sideral Time 23h 03m 41s

J2000

Right Ascension 09h 29m 54s

Declination -26° 35’ 22”

Galactic Coordinates

Galactic Longitude 256.64°

Galactic Latitude 17.66°

Finder Chart

Simplified finder chart for HR3770.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.48

Class Giant

Absolute magnitude -1.37

Spectral Type K3III

Color Index (B-V) 1.36

Temperature 4017K

The red dot in the diagram below shows where HR3770 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR3770. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR3770 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 HR3770 double sysyem:

Main star magnitude 5.48

Secondary star magnitude 14.08

Magnitude difference 8.6

Separation 11.6 arcsec

Distance, Radial Speed, Proper Motion

HR3770 is distant 763.47 light years from the Sun and it is moving far from the Sun at the speed of 12 kilometers per second.

Distance (parsec) 234.19

Distance (light year) 763.47

Radial Speed 12 km/s

Proper Motion RA -0.022 arcsec/y

Proper Motion Dec 0.002"/y

Alternative Designations

Henry Draper Catalogue HD82205

SAO Catalogue SAO177546

Hipparcos Catalogue HIP46578

Durchmusterung Catalogue CD-26 7117

Aitken Double Star Catalogue ADS7405

Visibility from Your Location

Today's HR3770 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 116.7° RISE 5:55

Max altitude: 11.8° TRANSIT 9:17

Azimuth: 243.3° SET 12:39

Set Location

Other stars in Antlia