Nebulosity adjacent Beta Doradus

kinetic (Steve) · #1 17-12-2011, 10:14 AM

I got this set by accident on Dec 16th.
I was trying for nearby Alpha Pict!

I can't find any online source which mentions what the
faint nebulosity is immediately adjacent Beta Dor.

It's quite an interesting star in itself, one source says this about it:

http://stars.astro.illinois.edu/sow/betador.html

" Among the most important of all stars are the Cepheid variables, named after the prototype, Delta Cephei.
At its peak, Beta Dor actually reaches into third magnitude, 3.41, and then falls to 4.08, oscillating between the two over a slightly variable 9.842... day period."

Aladin DSS image also for comparison.

Steve

renormalised (Carl) · #2 17-12-2011, 05:57 PM

Nice shot, Steve. If I remember correctly, beta Dor has some neb' associated with it, although whether it's a physical or just line of sight association I can't remember.

glenc (Glen) · #3 19-12-2011, 11:06 AM

Try http://simbad.u-strasbg.fr/simbad/si...y=61&radius=10

kinetic (Steve) · #4 19-12-2011, 06:31 PM

Thanks Glen for the homework!!...so it is a cluster!

Steve

kinetic (Steve) · #5 21-12-2011, 03:34 PM

here is another set of beta Doradus and the cluster adjacent
that Glen kindly identified.
Seeing was much better this time than Dec 16th...

Steve

renormalised (Carl) · #6 22-12-2011, 12:44 AM

That's a cluster.....even accounting for beta Dor, that's one faint scrap of stars!!!!.