77 Ceti

Above the horizon. Rise: 4:11 | Tran: 9:34 | Set: 14:57

Alt: 33.01° Az: 192.25° Direction: South-South-West

77 Ceti is a double giant star of spectral class K4 in the constellation of Cetus.

77 Ceti visual magnitude is 5.75. Because of its faintness, 77 Ceti 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 77 Ceti. The red arrow shows the motion of 77 Ceti during the next 10000 years (10.50 arcmin in Right Ascension and -10.83 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 02h 35m 58s

Declination -07° 44’ 55”

Hour Angle 00h 41m 22s

Sidereal Time 03h 17m 20s

J2000

Right Ascension 02h 34m 42s

Declination -07° 51’ 33”

Galactic Coordinates

Galactic Longitude 179.49°

Galactic Latitude -58.87°

Finder Chart

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Finder chart for 77 Ceti.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.75

Class Giant

Absolute magnitude -0.38

Spectral Type K4

Color Index (B-V) 1.4

Temperature 3950K

The red dot in the diagram below shows where 77 Ceti is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 77 Ceti. Attribution: Richard Powell / CC BY-SA

Star System Properties

77 Ceti 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 77 Ceti double sysyem:

Main star magnitude 5.75

Secondary star magnitude 12.45

Magnitude difference 6.7

Separation 94.7 arcsec

Distance, Radial Speed, Proper Motion

77 Ceti is distant 548.82 light years from the Sun and it is moving far from the Sun at the speed of 25 kilometers per second.

Distance (parsec) 168.35

Distance (light year) 548.82

Radial Speed 25 km/s

Proper Motion RA 0.063 arcsec/y

Proper Motion Dec -0.065"/y

Alternative Designations

Flamsteed designation 77 Ceti

Henry Draper Catalogue HD16074

SAO Catalogue SAO129984

Hipparcos Catalogue HIP12002

Durchmusterung Catalogue BD-08 484

Visibility from Your Location

Today's 77 Ceti rise, transit and set times from Le Châtelet-en-Brie, Francia are the following (all times relative to the local timezone Europe/Paris):

Azimuth: 97.7° RISE 4:11

Max altitude: 33.7° TRANSIT 9:34

Azimuth: 262.3° SET 14:57

Name:	Le Châtelet-en-Brie, Francia
Latitude:	48° 30' 25.2" N
Longitude:	2° 47' 29.9" E
Timezone:	Europe/Paris

Set Location

Other stars in Cetus