Why is the Double Double so called?

[SteveBz]

Why is Eps Lyr, the double-double, so called?  I was looking at it the other day and it seems to be an ordinary binary star.  I can't see what else there is to 'double'.  Even in Stellarium there nothing more to see. Here is a short snap of it:

   

Kind regards,

Steve.

Edited September 5, 2021 by SteveBz

[Saganite]

 

Hi Steve,

The two components of Epsilon Lyrae easily visible with binoculars, each split to reveal a binary star system.  If the seeing is good then 100x should reveal it well....

Edited September 5, 2021 by Saganite

[JeremyS]

19 minutes ago, SteveBz said:

Why is Eta Lyr, the double-double, so called?  I was looking at it the other day and it seems to be an ordinary binary star.  I can't see what else there is to 'double'.  Even in Stellarium there nothing more to see. Here is a short snap of it:

   

Kind regards,

Steve.

You’ll need to up the magnification a bit, but each of those two stars is a double, Steve

[Stu]

20 minutes ago, SteveBz said:

Why is Eta Lyr, the double-double, so called?  I was looking at it the other day and it seems to be an ordinary binary star.  I can't see what else there is to 'double'.  Even in Stellarium there nothing more to see. Here is a short snap of it:

   

Kind regards,

Steve.

Some good info on here Steve. As Saganite says, it’s a binocular double but in a scope each component splits into two, making the Double Double.

 

[Pixies]

27 minutes ago, SteveBz said:

Why is Eta Lyr, the double-double, so called?  I was looking at it the other day and it seems to be an ordinary binary star.  I can't see what else there is to 'double'.  Even in Stellarium there nothing more to see. Here is a short snap of it:

   

Kind regards,

Steve.

Ah - Eta Lyra - that's a double, but not "Double Double" - Epsilon Lyra.

Perhaps that's where the confusion is coming from.

I blame the Greeks! (not personally)

[SteveBz]

4 minutes ago, Pixies said:

Ah - Eta Lyra - that's a double, but not "Double Double" - Epsilon Lyra.

Perhaps that's where the confusion is coming from.

I blame the Greeks! (not personally)

Well spotted. Sorry about that typo. I'll fix it now.

[Sunshine]

The double double is truly a beautiful sight, I was looking at them at 230x Friday night and it was a sight to see as all four were beautiful discs. Up the power and you will notice those "two" stars are actually four. If you are using a C8 this should be a piece of cake. The lowest magnification I could detect them as four stars is 90x in my 4".

Edited September 5, 2021 by Sunshine

[Spile]

I also enjoy the double double’s double nearby and a little easier to split than the double double.

[Ags]

I wonder if, somewhere, there is a triple triple?

[globular]

21 minutes ago, Ags said:

I wonder if, somewhere, there is a triple triple?

I heard there are three of them..... I'll get my coat.