100 Aquarii

Below the horizon. Rise: 2:24 | Tran: 6:26 | Set: 10:28

Alt: -48.07° Az: 301.92° Direction: South

100 Aquarii is a giant star of spectral class A9 in the constellation of Aquarius.

100 Aquarii visual magnitude is 6.29. Because of its faintness, 100 Aquarii 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 100 Aquarii. The red arrow shows the motion of 100 Aquarii during the next 100000 years (15.00 arcmin in Right Ascension and 8.33 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 23h 33m 02s

Declination -21° 13’ 43”

Hour Angle 09h 30m 06s

Sidereal Time 09h 03m 08s

J2000

Right Ascension 23h 31m 42s

Declination -21° 22’ 09”

Galactic Coordinates

Galactic Longitude 46.21°

Galactic Latitude -70.96°

Finder Chart

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Finder chart for 100 Aquarii.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 6.29

Class Giant

Absolute magnitude 1.77

Spectral Type A9III

Color Index (B-V) 0.33

Temperature 7276K

The red dot in the diagram below shows where 100 Aquarii is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 100 Aquarii. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

100 Aquarii is distant 261.01 light years from the Sun and it is moving towards the Sun at the speed of 8 kilometers per second.

Distance (parsec) 80.06

Distance (light year) 261.01

Radial Speed -8 km/s

Proper Motion RA 0.009 arcsec/y

Proper Motion Dec 0.005"/y

Alternative Designations

Flamsteed designation 100 Aquarii

Henry Draper Catalogue HD221357

SAO Catalogue SAO191970

Hipparcos Catalogue HIP116118

Durchmusterung Catalogue BD-22 6141

FK5 Catalogue 3885

Visibility from Your Location

Today's 100 Aquarii rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 111.2° RISE 2:24

Max altitude: 17.3° TRANSIT 6:26

Azimuth: 248.8° SET 10:28

Set Location

Other stars in Aquarius