Orion Spectra

[Terry B]

I took spectra of the 3 bright stars in Orions belt a couple of nights ago. This is for a project called The Orion Project (http://www.hposoft.com/Orion/Orion.html) but I thought I would show them here as well. The 3 stars are delta Ori, Eps Ori and Zeta Ori.
All are hot O stars so show similar spectra. As they are very hot they are very bright in the blue.
They have faint Hydrogen absorption lines plus He lines.
Terry

[Jon]

Nice spectra, Terry.

Looks like an interesting project. Would have been good if they'd included Theta 2 Ori, in the trapezium. It's a Be star with fluctuating emission lines. I had a crack at it with the Star Analyzer, but without a slit I couldn't get away from all the signal from the nebula itself.

[DavidTrap]

Does look interesting.

What is the main objective - looking for variation in these stars or improving ones skills to produce accurate data??

DT

[Terry B]

I think the main objective is to experiment with methods of archiving spectra from different sources. I must admit I have decided not to contribute anything more until it is a bit more mature as I think there is a bit of learning yet to be done by the organisers.