η Antliae (eta Antliae)

Above the horizon. Rise: 11:28 | Tran: 15:49 | Set: 20:11

Alt: 22.76° Az: 194.05° Direction: South-South-West

η Antliae is a double giant star of spectral class F1 in the constellation of Antlia.

η Antliae visual magnitude is 5.23. Because of its faintness, η Antliae 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 η Antliae. The red arrow shows the motion of η Antliae during the next 10000 years (-14.50 arcmin in Right Ascension and -3.33 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 09h 59m 58s

Declination -36° 00’ 50”

Hour Angle 01h 04m 16s

Sidereal Time 11h 04m 14s

J2000

Right Ascension 09h 58m 52s

Declination -35° 53’ 27”

Galactic Coordinates

Galactic Longitude 267.94°

Galactic Latitude 15°

Finder Chart

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Finder chart for η Antliae (eta Antliae).

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.23

Class Giant

Absolute magnitude 2.66

Spectral Type F1III

Color Index (B-V) 0.31

Temperature 7399K

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

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

Star System Properties

η Antliae 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 η Antliae double sysyem:

Main star magnitude 5.23

Secondary star magnitude 11.23

Magnitude difference 6

Separation 31.1 arcsec

Distance, Radial Speed, Proper Motion

η Antliae is distant 106.29 light years from the Sun and it is moving far from the Sun at the speed of 30 kilometers per second.

Distance (parsec) 32.61

Distance (light year) 106.29

Radial Speed 30 km/s

Proper Motion RA -0.087 arcsec/y

Proper Motion Dec -0.02"/y

Alternative Designations

Bayer designation η Antliae
(eta Antliae)

Henry Draper Catalogue HD86629

SAO Catalogue SAO200926

Hipparcos Catalogue HIP48926

Durchmusterung Catalogue CD-35 6050

FK5 Catalogue 377

Visibility from Your Location

Today's η Antliae (eta Antliae) rise, transit and set times from Yanwukou, China are the following (all times relative to the local timezone Asia/Shanghai):

Azimuth: 126.0° RISE 11:28

Max altitude: 24.5° TRANSIT 15:49

Azimuth: 234.0° SET 20:11

Name:	Yanwukou, China
Latitude:	29° 30' 5.0" N
Longitude:	109° 54' 57.6" E
Timezone:	Asia/Shanghai

Set Location

Other stars in Antlia