Iota Cassiopeiae

[jason.p]

I'm working my way through the Cassiopeiae doubles and was looking at Iota last night. The small companion was no trouble, but I could not make out the closer element. Is it "do-able" with the 8 inch? I should have spent longer on it but I gave in to the cold. Minus 3c and everything frosted up!

[Moonshane]

The seeing was a bit poor last night. I have split this readily with a 70mm F11 frac at 100x so you will get it with patience. It is a beaut.

[chiltonstar]

Yes, easily do-able. A gem.

Chris

[laudropb]

I have managed with my 8 inch Dob. Well worth the effort.

[cotterless45]

It's a showcase gem, just sitting out on it's own,

Nick.

[John]

I can do Iota Cass with my 4" refractor and it's one of my favourites in that part of the sky

The seeing conditions have been all over the place lately though so what should be straightforward has not always proved so

[neural]

Agree with John. I've split the close pair a couple of times with my 4" frac as well, but I couldn't get it at 110x ... I will try again now the challenge has been thrown down! It is really a lovely group and, unlike some multiples, genuinely looks like a triple star. Last time I looked the secondary (of the close pair) looked reddish - maybe you'll see the colour more clearly with 8" aperture. Steady skies!

[runway77]

an old topic but I wanted to add that I have just observed the Iota Cas with a 130p reflector and a 4mm Takahashi TOE eyepiece. Beautiful triple, all the components can relatively easily be resolved. However, the scope definitely required a cool down and steady air.