kaaikop
sage
Reged: 07/13/08
Posts: 460
Loc: Ste-Therese, Canada
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I looked at the double-double in Lyra for the 1st time last night.
Wow, totally cool! first at mag. 78x, then on to 181x, I could clearly split them,
I was flipping out, had to go & get the girlfriend to show her.
I consider myself a beginner and had not spend a lot of time looking at "stars" through my scope, other than for alignment purpose.
This sure opened my eyes!  There will be more doubles on my next program! 
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Benoit, RASC Montreal
-C 9.25XLT on EQ6 Pro / ED80SF on Portamount
-Plossls, Radians, Naglers, LVW's & Orthos.
-a pair of 7x50's
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Achernar
Post Laureate
Reged: 02/25/06
Posts: 3690
Loc: Alabama, USA
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If you like double-double stars, look no farther than Nu Scorpii, which has four visible members. Another fine multiple star in Scorpius is Xi Scorpii, which has at least five members!
Taras
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10-inch F/4.5 Discovery Dob
6-inch F/8 Homebuilt Dob
4 1/4-inch F/4 Homebuilt reflector
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John Fitzgerald
In Focus
Reged: 01/04/04
Posts: 1227
Loc: AR
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There is another double-double in Lyra, Struve 2470 and 2474, located about 2-1/2 degrees east of the parallelogram asterism of Lyra. I have viewed it many times. It's a much easier split than Epsilon 1 and 2.
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?
Observing since 1966
Messier Cert #898
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Tom Andrews
professor emeritus
Reged: 01/25/07
Posts: 602
Loc: Homebase - Albuquerque, NM; c...
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Check out the double-double in Bootes: Iota and Kappa. They're easier to see and have very nice color.
Also, there are some easy ones to find, like Mizar in the Big Dipper and Cor Caroli in Canes Venatici.
Also, have you seen Alberio. I've heard it's not considered a true double (not sure) but the colors are great: orange and blue.
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Tom
The Secret To Life:
Focus on what you have, not on what you don't;
Focus on what you can do, not on what you can't.
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RLTYS
Carpal Tunnel
Reged: 12/18/04
Posts: 1730
Loc: New York (Long Island)
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Kaaikop
You might also want to consider Gamma Del and Struve 2725. Both in the same FOV in my 10" refl at 171x. Delphinus's "double-double".
Clear Skies.
Rich (RLTYS)
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10" F4.8 Refl.
4" F5 Refr.
50mm F12 Refr. (Tasco #6TE-5)
12x63 and 10x50 Binoculars.
"I want to do more then just look."
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kaaikop
sage
Reged: 07/13/08
Posts: 460
Loc: Ste-Therese, Canada
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Cool! thanks for the heads up. Will check those out for sure!
Unfortunately, with this weather pattern...
It might be October until I get my next chance...
Again... I can hear the thunder rumbling as I write this,
no Perseids tonight! Grrrr... 
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Benoit, RASC Montreal
-C 9.25XLT on EQ6 Pro / ED80SF on Portamount
-Plossls, Radians, Naglers, LVW's & Orthos.
-a pair of 7x50's
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WadeVC
Carpal Tunnel
Reged: 12/02/05
Posts: 2781
Loc: Lodi, California,
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Quote:
I looked at the double-double in Lyra for the 1st time last night.
Wow, totally cool!
I remember the first time I saw the "Double-double", and you are right that it is certainly worth a "WOW"! Pretty cool indeed!
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Orion XTi10 f/4.7
Orion XTi8 f/5.9
Meade NGC 70mm f/10
Orion UltraView 10x50 Wide-Angle Binoculars
My Sketch Gallery
My Astronomy Blog
A wise man can see more from the bottom of a well than a fool can from a mountain top.
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smasraum
sage
Reged: 01/13/08
Posts: 492
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I had seen the first double of the double-double several times before when looking at Lyra, but never really paid much attention or hit it with higher magnification. Last night I was looking at Lyra and scanned over to the double-double at about 148x. I looked for a sec and thought, "both of those look like double stars" but they were so close together that I doubted what I was seeing. I scanned over to a couple of other stars and thought, "no, those just look like a single stars". So when I went back to the double double, I threw my 2.5x Powermate into the mix. At 370x, it was certain that they were double stars, but still very close together. They were by far the closest doubles that I'd ever looked at. I checked today and most sources seem to say that each pair are 2.3" apart.
I was certainly wowed by them.
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Steve
Houston (Friendswood), TX
 Space Center Houston
8" Zhumell Dob - Woo Hoo!!
Celestron C102 f/5 - Thanks Tim!
21mm, 13mm Hyperion
2.5x TV Powermate
Canon Rebel XT
Nikon 7x35
Bushnell 10x50
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j3ffr0
sage
Reged: 07/06/08
Posts: 218
Loc: Virginia
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I saw this post today, and decided to try the double double tonight to see what the fuss was about. Indeed I could not see it until I pushed to 277 and 400 power. Very cool and very fun. I initially saw it at 400, but my best views were at 277. it looks like one star with the naked eye. In your 8-10x finder, you can clearly see two. Push it up to around 300 and you can see that really four. 
Most fun I've had this week!
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10" Dob
127mm Mak
PST
35, 24 Panoptic; 16, 13, 9 Nagler
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Anonymous
Unregistered
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Hi,
Were you using your Dob or your Mak for looking at the double double? Though seeing is always crucial in splitting doubles, you should be able to split the double double well under 200x in either of your scopes. I was just out with my 70mm Ranger and it split well at 80x. Looked best around 150x. I can split it in the 50x-60x range in my TV85 and around 60x in my XT6. Try it around 100x in your Mak and see if you can get all 4.
Clyde
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j3ffr0
sage
Reged: 07/06/08
Posts: 218
Loc: Virginia
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It was the dob. Collimation was close that night, but not perfect. I tried in the Mak two nights ago and was indeed able to split at 166 (maybe even lower (didn't pay that much attention). 230 seemed to provide the most pleasing view in the Mak
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10" Dob
127mm Mak
PST
35, 24 Panoptic; 16, 13, 9 Nagler
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Rick Woods
Post Laureate
Reged: 01/27/05
Posts: 4262
Loc: Inner Solar System
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Sometimes all 4 leap right out at me in the 120mm achro; other times, the 14" won't even come close. The double-double can be a maddening little devil! Izar is another one: sometimes just a blob, other times, two sharp points.
Gamma Andromedae and Alpha Herculis are two more faves!
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- Rick
14" LX200GPS
8" Meade 826C
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alienux
professor emeritus
Reged: 02/17/08
Posts: 673
Loc: Dayton, Ohio
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The double-double in Lyra near Vega was my first double. I first saw it in binos, and then in my Mak. Very impressive double to me, especially when I saw it the first time.
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Brian
Orion SkyView Pro 127mm EQ Mak
Meade 60mm Push-To TeleStar
Phillips SPC900NC
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cncb
sage
Reged: 02/21/08
Posts: 399
Loc: Scandinavia
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First time for me tonight  All 4 at 166x in my achro 120mm.Really an amazing view although seeing conditions probably was not the best.The double-double sure is on my favorite list from now on.
Clear skies!
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Living on Earth may be expensive,but it does include an annual free trip around the sun
Sky-Watcher-120 achro (EQ3-2) f/1000mm(f/8,33)
Sky-Watcher Skymax 127 mak f/1500mm (f/11,66)
Tento 20x60
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73`s & 51`s
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InkDark
scholastic sledgehammer
Reged: 10/29/07
Posts: 1461
Loc: Montreal, Canada
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Quote:
Living on Earth may be expensive,but it does include an annual free trip around the Sun.
I like the way you think...
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Jimmy
"Rarely Have So Many Understood So Little About So Much" - Palle Yourgrau
"...since that time, I have not complained about the weather one single time. I’m glad there is weather." – Alan Bean, Apollo 12
What do you mean by “Saving the Earth”? The Earth is not in danger! Don’t worry about the planet it will be here long after we are extinct...
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dlapoint
sage
Reged: 08/18/03
Posts: 452
Loc: Moncton NB Canada
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I split the Double Double last night at 56x in a 100mm ed. It was not a clean split, they were kissing. But I like to view doubles at as low a power as I can some times. They split very clean at a 100x The dd is aways a treat, and I agree the night makes a big difference. I've had a hard time to split it in an 8" scope at times.
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Antares 127 F6.5
Skywatcher Pro ED100
Orion 72mm Eon
Orion XT8
C4.5
Naglers 16mm T5, 9mm T6
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RussL
Music Maker
Reged: 03/18/08
Posts: 1575
Loc: Cayce, SC
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Me,too, first time, last night. I was about to make a post about it when I saw this one. I've tried before in my 8" SCT with no luck. Surprisingly, last night it was with my little ST80, f5, at 63x. Clear as a bell. The highest I could go was 106x using a 7.5mm Sirius plossl eyepiece in a 2x shorty barlow. Oh, they were very well split at that power and crystal clear, so close, but tack-sharp-separated I could hardly believe it. I must've had some very good air to look through last night. It was a definite WOW for me. I've only begun to look at doubles in the last few months in all the decades I've been observing. I'm glad to add these to my list.
Reminds me of the night I split Castor for the first time.
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--Russell
"Akita mani yo." Observe everything as you walk. (--Lakota)
Celestron Celestar 8 Standard SCT, f10
Celestron 80mm Wide View ref., f5
Criterion RV-6 Dynascope, Newt., f8, (c. 1962)
Sears Discoverer 60mm ref., f7, (c. 1973)
Celestron Ultima DX 10x50, 6.5 TFOV
Tasco 7x35 wide
Several mediocre eyepieces
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rwiederrich
Goldfinger
Reged: 11/17/05
Posts: 5888
Loc: Bremerton Washington
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Quote:
Sometimes all 4 leap right out at me in the 120mm achro; other times, the 14" won't even come close. The double-double can be a maddening little devil! Izar is another one: sometimes just a blob, other times, two sharp points.
Gamma Andromedae and Alpha Herculis are two more faves!
I tell my DOB friends to test their collimation on Izar.
And most still can't split it. that is surely a tuff double due to magnitude differences and seperation.
I split it easily with my 6"f/15 at 163x. Good seeing is a must.
Rob
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www.goldmtobservingcenter.com
Providing a great place for amateur astronomers, and ATM's to come and enjoy their hobby.
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Mike I. Jones
Pooh-Bah
Reged: 07/02/06
Posts: 1093
Loc: Fort Worth TX
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Be sure to put Iota Cassiopeia on your list, it's become one of my favorites. It's a true triple star system, very pretty with good color contrast, period about 840 years. The primary is 4.7 mag and yellow-white, the closer companion is 2.3" distant, 7.0 mag and bluish, and the farther companion is a reddish 8.2 mag at 7" away. Lots of information on Iota is at http://www.weasner.com/etx/ref_guides/cassiopeia.html
Mike
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56 mirrors, lenses, 16" f/6 Newt, 6" f/10 refractor, TOA-130S, Tinsley 5" f/15 Mak, 6" f/4 RFT, Coronado PST. Still to build: 24" f/10 Modified Dall-Kirkham, 10" f/26 Mak, 8" f/12 apo, spectrohelioscope, Herrig, Schupmann, and a new design you'll like.
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GlenM
Pooh-Bah
Reged: 05/20/07
Posts: 1047
Loc: 53° 36'N 2° 06'W
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Having bought some new eyepieces I thought I would try the double-double tonight.
WOW! first time ever with my TV85 at 120x. The seeing doesn't half make a difference.
I liked Albireo also,I saw it a Golden Yellow and electric Blue.
Got to try out more suggestions from the forum.
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Glen
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