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Old 04-08-2018, 12:22 PM
Tropo-Bob (Bob)
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Join Date: Sep 2013
Location: Cairns
Posts: 882
LYRA: The Grand Tour.

Below are the subjects in Lyra that I wish to view:-


The Main Stars.

Alpha Lyrae (Lyr): Vega. 5th brightest star in the night sky.
https://en.wikipedia.org/wiki/Vega

Beta Lyre - Varies by 1.2 mags in 13 days. It is also a double star.
https://en.wikipedia.org/wiki/Beta_Lyrae

Gamma Lyr: Sulafat. The 2nd brightest star in Lyra.
https://en.wikipedia.org/wiki/Gamma_Lyrae

Delta Lyr. An optical double.
https://en.wikipedia.org/wiki/Delta_Lyrae

Epsilon Lyr. The Double-Double. (The standard test for telescopic performance on Double stars)
https://en.wikipedia.org/wiki/Epsilon_Lyrae


Objects of interest.

NGC 6791. An Open Cluster. At 8 billion years old, it defies the norm by being metal rich.
https://en.wikipedia.org/wiki/NGC_6791

Eta Lyr. A Showcase Double.
https://en.wikipedia.org/wiki/Eta_Lyrae

Struve 2470 & 2474. Another Double-Double, however fainter & easier to split.
https://www.cloudynights.com/gallery...uve-2470-2474/

R Lyrae. A variable, red star.
https://en.wikipedia.org/wiki/R_Lyrae

RR Lyrae. This is the prototype of this type of variable stars.
https://en.wikipedia.org/wiki/RR_Lyrae_variableml



Messiers: M56 & M57
Caldwell: Nil

Last edited by Tropo-Bob; 04-08-2018 at 02:56 PM.
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