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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 5:02 
Transit: 12:56 
Sunset: 20:51
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All Constellations » Aquarius » 

Sadalmelik - α Aquarii (alpha Aquarii)

Above the horizon.  Rise: 1:17 | Tran: 7:14 | Set: 13:11
Alt: 36.20°   Az: 202.15°   Direction: South-South-West

Sadalmelik, also designated as α Aquarii (alpha Aquarii), is a double supergiant star of spectral class G2 in the constellation of Aquarius.

Sadalmelik visual magnitude is 2.96. Because of its brightness, Sadalmelik is clearly visible to the naked eye when observed from locations with dark skies, and should be also quite easily visible from light polluted areas.

Image of Sadalmelik - α Aquarii (alpha Aquarii) star
DSS2 image of Sadalmelik. The red arrow shows the motion of Sadalmelik during the next 10000 years (3.33 arcmin in Right Ascension and -1.67 arcmin in declination);

Celestial Coordinates

Apparent

22h 07m 05s
-00° 11’ 43”
01h 10m 52s
23h 17m 57s

J2000

22h 05m 47s
-00° 19’ 10”

Galactic Coordinates

59.93°
-42.07°

Finder Chart

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Finder chart for Sadalmelik - α Aquarii (alpha Aquarii).

Magnitude, Color, Spectral Class

2.96
Supergiant

-3.87
G2I
4791K

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

HR Diagram
H-R diagram showing the position of Sadalmelik. Attribution: Richard Powell / CC BY-SA

Star System Properties

Sadalmelik 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 Sadalmelik double sysyem:

2.96
11.96
9
113 arcsec

Distance, Radial Speed, Proper Motion

Sadalmelik is distant 758.14 light years from the Sun and it is moving far from the Sun at the speed of 8 kilometers per second.

232.56
758.14
8 km/s
0.02 arcsec/y
-0.01"/y

Alternative Designations

Sadalmelik
α Aquarii
(alpha Aquarii)
SAO145862
SAO145862

Visibility from Your Location

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

Azimuth: 90.2°
Max altitude: 38.3°
Azimuth: 269.8°