Your favorite double stars to observe
Posted 02 July 2013 - 02:28 AM
You'll need to wait a bit but check out sigma Orionis, a quadruple. Nearby is a nice double, Struve 762. I was surprised at the appeal of doubles. Clear skies and good hunting.
Actually, the quintuple star Sigma Orionis is Struve 762. Struve 761 is the nearby triple star.
Posted 02 July 2013 - 02:47 AM
Wow, I can't believe no one has mentioned Algieba, gamma leonis. One of my favorite double star experiences was viewing it through holes in the clouds and a light rain falling. With an 80mm refractor it was simply stunning, yellow-green!
In addition to Gamma Andromedae and Gamma Leonis, two noteworthy "gamma" doubles are Gamma Delphini and Gamma Arietis. Gamma Velorum is a fine multiple star.
Iota Cancri is a colorful springtime double. The Winter Albireo, h3945, is another very colorful binary star.
One of my very favorites, however, is Struve 2470/2474 in Lyra, the so-called Other Double Double.
Posted 02 July 2013 - 08:48 AM
Double-Double-Double in Lyra
Es244 in Cygnus
There's more but that's what comes to mind.
Posted 07 July 2013 - 01:36 PM
Posted 15 July 2013 - 02:18 AM
Another pretty "gamma" is Porrima, in Virgo: it used to be a difficult split, but now the separation is wider and 100x or so will split it.
Posted 16 July 2013 - 03:00 PM
Posted 16 July 2013 - 03:18 PM
I got a great picture of it, one of my best. The colors is what I like about it. I had a good friend as a kid who always wore the two colors together so when I see the colors together it brings be back to a godo place in time. thus tehy hold a special place for me. like th good memory is cemented in teh heavens. The pic I got was only adjustd levels and curves the colors are what I take pride in trying to capture the exact color with out adding to it or taking away. that is my drink of choice. It has to be true to the object and do it justic. My pic is in my gallry but in the thread in this corner. (I am taking note of the ones mentioned I want to get a double and tripple collection going.)
Posted 17 July 2013 - 03:04 AM
Posted 17 July 2013 - 11:18 AM
Posted 17 July 2013 - 11:24 AM
Posted 24 September 2013 - 04:39 PM
Zeta Aquarii is my favorite; always enjoy observing it.
I just bagged this one yesterday! Nice, tight pair, both looked white to me at 150x (XW 20 + TV PM 2.5x) in the XT8g. Classic '8' shape, riding each other's diffraction rings! The seeing was very good and the scope was well cooled down, I might add. Upping the power to 300x+ (Nagler Zoom @4mm), they looked like a light yellow, equal pair, with a bit more separation.
Posted 24 September 2013 - 08:36 PM
Posted 24 September 2013 - 09:38 PM
Favorite winter double - WZ Cas
Posted 25 September 2013 - 01:55 PM
Favorite Double Star? The last one I resolved.
Bingo! For me, that's lambda Cygni--beautiful 0.9 arcsecond split at 490X in my 12.5. Secondary basically due north of primary. (But I love all the ones mentioned above as well.)
Posted 25 September 2013 - 02:05 PM
As it is a closer double than Albireo and with similar colours, think the contrast is more striking.