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public  Tham Phannara, Tailandia Tham Phannara, Tailandia  ⓘ
TimezoneAsia/Bangkok
Sunrise: 6:09 
Transit: 12:26 
Sunset: 18:43
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All Constellations » Lyra » 

Aladfar - η Lyrae (eta Lyrae)

Above the horizon.  Rise: 18:31 | Tran: 0:56 | Set: 7:26
Alt: 39.00°   Az: 314.60°   Direction: North-West

Aladfar, also designated as η Lyrae (eta Lyrae), is a variable and multiple sub-giant star of spectral class B2 in the constellation of Lyra.

Aladfar visual magnitude is 4.39. Because of its moderate brightness, Aladfar 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 Aladfar - η Lyrae (eta Lyrae) star
DSS2 image of Aladfar. The red arrow shows the motion of Aladfar during the next 100000 years (6.67 arcmin in Right Ascension and 3.33 arcmin in declination);

Celestial Coordinates

Apparent

19h 14m 37s
+39° 11’ 28”
03h 02m 13s
22h 16m 51s

J2000

19h 13m 45s
+39° 08’ 45”

Galactic Coordinates

70.62°
12.75°

Finder Chart

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Finder chart for Aladfar - η Lyrae (eta Lyrae).

Magnitude, Color, Spectral Class

4.39
Sub-giant

-3.13
B2IV
12489K

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

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

Star System Properties

Aladfar is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the Aladfar double sysyem:

4.39
8.39
4
28.3 arcsec

Distance, Radial Speed, Proper Motion

Aladfar is distant 1,041.53 light years from the Sun and it is moving towards the Sun at the speed of 8 kilometers per second.

319.49
1,041.53
-8 km/s
0.004 arcsec/y
0.002"/y

Alternative Designations

Aladfar
η Lyrae
(eta Lyrae)
SAO68010
SAO68010

Visibility from Your Location

Today's Aladfar - η Lyrae (eta Lyrae) rise, transit and set times from Tham Phannara, Tailandia are the following (all times relative to the local timezone Asia/Bangkok):

Azimuth: 50.8°
Max altitude: 59.2°
Azimuth: 309.2°