HR730

Above the horizon. Rise: 23:32 | Tran: 3:29 | Set: 7:21

Alt: 12.43° Az: 204.76° Direction: South-South-West

HR730 is a double main-sequence star of spectral class A9 in the constellation of Cetus.

HR730 visual magnitude is 6.77. Because of its faintness, HR730 is not visible to the naked eye.

DSS2 image of HR730. The red arrow shows the motion of HR730 during the next 10000 years (12.83 arcmin in Right Ascension and 1.00 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 02h 31m 03s

Declination -22° 34’ 25”

Hour Angle 01h 45m 08s

Sideral Time 04h 16m 11s

J2000

Right Ascension 02h 29m 55s

Declination -22° 40’ 58”

Galactic Coordinates

Galactic Longitude 207.1°

Galactic Latitude -67.27°

Finder Chart

Simplified finder chart for HR730.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.77

Class Main-sequence

Absolute magnitude 2.10

Spectral Type A9V

Color Index (B-V) 0.19

Temperature 8241K

The red dot in the diagram below shows where HR730 is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of HR730. Attribution: Richard Powell / CC BY-SA

Star System Properties

HR730 is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the HR730 double sysyem:

Main star magnitude 6.77

Secondary star magnitude 12.47

Magnitude difference 5.7

Separation 28.4 arcsec

Distance, Radial Speed, Proper Motion

HR730 is distant 279.59 light years from the Sun and it is moving far from the Sun at the speed of 13 kilometers per second.

Distance (parsec) 85.76

Distance (light year) 279.59

Radial Speed 13 km/s

Proper Motion RA 0.077 arcsec/y

Proper Motion Dec 0.006"/y

Alternative Designations

Henry Draper Catalogue HD15588

SAO Catalogue SAO167832

Hipparcos Catalogue HIP11622

Durchmusterung Catalogue CD-23 942

Aitken Double Star Catalogue ADS1906

Visibility from Your Location

Today's HR730 rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 112.6° RISE 23:32

Max altitude: 15.9° TRANSIT 3:29

Azimuth: 247.4° SET 7:21

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

Location

Other stars in Cetus