17 Aquarii

Above the horizon. Rise: 1:20 | Tran: 6:31 | Set: 11:43

Alt: 23.04° Az: 215.56° Direction: South-West

17 Aquarii is a hypergiant star of spectral class M0 in the constellation of Aquarius.

17 Aquarii visual magnitude is 5.99. Because of its faintness, 17 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 17 Aquarii. The red arrow shows the motion of 17 Aquarii during the next 10000 years (-4.17 arcmin in Right Ascension and -4.33 arcmin in declination);

Celestial Coordinates

Apparent

Right Ascension 21h 24m 17s

Declination -09° 12’ 35”

Hour Angle 02h 11m 19s

Sidereal Time 23h 35m 37s

J2000

Right Ascension 21h 22m 56s

Declination -09° 19’ 09”

Galactic Coordinates

Galactic Longitude 42.56°

Galactic Latitude -37.81°

Finder Chart

Loading map...

Finder chart for 17 Aquarii.

Magnitude, Color, Spectral Class

Color ⬤

Magnitude 5.99

Class Hypergiant

Absolute magnitude -0.73

Spectral Type M0III

Color Index (B-V) 1.54

Temperature 3734K

The red dot in the diagram below shows where 17 Aquarii is situated in the Hertzsprung–Russell diagram.

H-R diagram showing the position of 17 Aquarii. Attribution: Richard Powell / CC BY-SA

Distance, Radial Speed, Proper Motion

17 Aquarii is distant 719.65 light years from the Sun and it is moving far from the Sun at the speed of 18 kilometers per second.

Distance (parsec) 220.75

Distance (light year) 719.65

Radial Speed 18 km/s

Proper Motion RA -0.025 arcsec/y

Proper Motion Dec -0.026"/y

Alternative Designations

Flamsteed designation 17 Aquarii

Henry Draper Catalogue HD203525

SAO Catalogue SAO145351

Hipparcos Catalogue HIP105574

Durchmusterung Catalogue BD-09 5728

FK5 Catalogue 3705

Visibility from Your Location

Today's 17 Aquarii rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):

Azimuth: 99.2° RISE 1:20

Max altitude: 29.3° TRANSIT 6:31

Azimuth: 260.8° SET 11:43

Set Location

Other stars in Aquarius