51 Aquarii

Below the horizon. Rise: 21:47 | Tran: 3:42 | Set: 9:41

Alt: -83.98° Az: 325.24° Direction: North-West

51 Aquarii is a multiple hypergiant star of spectral class A0 in the constellation of Aquarius.

51 Aquarii visual magnitude is 5.78. Because of its faintness, 51 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 51 Aquarii. The red arrow shows the motion of 51 Aquarii during the next 10000 years (5.50 arcmin in Right Ascension and -0.67 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 22h 25m 26s

Declination -04° 42’ 25”

Hour Angle 11h 46m 14s

Sidereal Time 10h 11m 40s

J2000

Right Ascension 22h 24m 06s

Declination -04° 50’ 12”

Galactic Coordinates

Galactic Longitude 58.72°

Galactic Latitude -48.44°

Finder Chart

Loading map...

Finder chart for 51 Aquarii.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.78

Class Hypergiant

Absolute magnitude 0.21

Spectral Type A0V

Color Index (B-V) -0.04

Temperature 10653K

The red dot in the diagram below shows where 51 Aquarii is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 51 Aquarii. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

51 Aquarii is distant 423.93 light years from the Sun and it is moving far from the Sun at the speed of 6 kilometers per second.

Distance (parsec) 130.04

Distance (light year) 423.93

Radial Speed 6 km/s

Proper Motion RA 0.033 arcsec/y

Proper Motion Dec -0.004"/y

Alternative Designations

Flamsteed designation 51 Aquarii

Henry Draper Catalogue HD212404

SAO Catalogue SAO146067

Hipparcos Catalogue HIP110578

Durchmusterung Catalogue BD-05 5780

Aitken Double Star Catalogue ADS15902

Visibility from Your Location

Today's 51 Aquarii rise, transit and set times from Jaffna, Sri Lanka are the following (all times relative to the local timezone Asia/Colombo):

Azimuth: 94.7° RISE 21:47

Max altitude: 75.6° TRANSIT 3:42

Azimuth: 265.3° SET 9:41

Name:	Jaffna, Sri Lanka
Latitude:	9° 40' 6.4" N
Longitude:	80° 0' 26.6" E
Timezone:	Asia/Colombo

Set Location

Other stars in Aquarius