Beautiful Eta Cassiopeia

[Starobserver]

Eta Cassiopeia is a strikingly colourful pair of stars. Eta's primary is bright yellow, while its dim companion looks deep orange with a hint of red. This attractive couple lies within an asterism that, using the right magnification, looks like a small dolphin (see my sketch for details). The dolphin asterism consists of 13 stars, oriented southwest northeast, with eta Cassiopeia situated at the tip of the tail fin. Eta Cassiopeia was allready easily split in the 22mm Nagler. After trying all possible magnifications, I liked the view of both the double and the asterism best using the 12mm Nagler T4, giving a magnification of 133x and a field of view of 37'.

For more details on this interesting couple of yellow and red main sequence dwarfs, its discovery, the place on the main sequence etc. please follow this link for the full report.

[Doc]

I've observed this wonderful asterism quite a few times and your sketch portraits shows it very well.

[barkis]

I am not familiar with Eta Cass. but I admire your sketch of it, and the accompanying stars, it is really excellent.

I have marked it as a future observation.

Thank you for an excellent post.

Ron.

[lunator]

Very nice sketch Math

Eta was the 1st double I split with a telescope and it is a real beauty

Cheers

Ian

[daz]

That's a great sketch, and the observing reports are just fantastic!!

[Andrew]

Thanks for posting this and the link to your website which is great. Open clusters are my favourite targets and your web reports and sketches are excellent + full of interesting details. I've bookmarked your site so please keep posting more reports

[AndyBooth]

Wonderful sketch, captures the view very well indeed.

[pbyrne]

Always a favourite of mine, thanks for the great sketch.

Paul

[Starobserver]

Hi Guys,

Thanks everyone for the positive replies:icon_exclaim: And Andrew, I will do my best to post some good sketches this winter. At the moment I just finished NGC 457 (the sketch). I will write the observing report next week and hope to post it on wednesday.

Thanks again everybody:)