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public  Greenwich, UK Greenwich, UK  ⓘ
TimezoneEurope/London
Sunrise: 5:05 
Transit: 12:56 
Sunset: 20:48
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All Constellations » Draco » 

Altais - δ Draconis (delta Draconis)

Above the horizon.  Circumpolar today
Alt: 69.42°   Az: 331.73°   Direction: North-North-West

Altais, also designated as δ Draconis (delta Draconis), is a double giant star of spectral class G9 in the constellation of Draco.

Altais visual magnitude is 3.07. Because of its moderate brightness, Altais is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.

Image of Altais - δ Draconis (delta Draconis) star
DSS2 image of Altais. The red arrow shows the motion of Altais during the next 1000 years (1.57 arcmin in Right Ascension and 1.55 arcmin in declination);

Celestial Coordinates

Apparent

19h 12m 32s
+67° 42’ 20”
01h 44m 07s
20h 56m 40s

J2000

19h 12m 33s
+67° 39’ 42”

Galactic Coordinates

98.65°
23°

Finder Chart

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Finder chart for Altais - δ Draconis (delta Draconis).

Magnitude, Color, Spectral Class

3.07
Giant

0.63
G9III
4743K

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

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

Star System Properties

Altais 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 Altais double sysyem:

3.07
12.27
9.2
88.1 arcsec

Distance, Radial Speed, Proper Motion

Altais is distant 100.18 light years from the Sun and it is moving far from the Sun at the speed of 25 kilometers per second.

30.73
100.18
25 km/s
0.094 arcsec/y
0.093"/y

Alternative Designations

Altais
δ Draconis
(delta Draconis)
57 Draconis
SAO18222
SAO18222

Visibility from Your Location

Altais - δ Draconis (delta Draconis) is circumpolar and transits at 03:28 UTC (altitude: 73.8°)