(IAAC) Re: Observing superluminous star clusters in NGC 1569
Wow! Very impressive!!!
If the weather becomes better I will turn from And (my "H II Region in M 31
project") to Cam and try to catch these objects with my 20incher.
Rich, have you seen the H II regions in NGC 1569?
Best regards from germany, Jens
Richard Jakiel schrieb:
> Just recently I've submitted an article on the IC 342 galaxy group. One of
> the lesser members - NGC 1569 is a starburst galaxy with two highly unusual,
> very blue objects. Designated NGC 1569 A and B, these are superluminous
> globular clusters of absolute magnitudes ~ -14, about 4 magnitudes greater
> than any associated with our galaxy, or M 31. The brightest is NGC 1569A,
> listed at 14.8 mag (v), while B is slightly dimmer at 15.5.
> This past weekend, I was able to observe both clusters with our club's
> 24-inch Tectron using magnifications ranging from 304 to 548x. They were
> visible as a faint 'double star' in the brightest part of the galaxy,
> roughly aligned SE-NW, and ~ 6" separation. David Riddle, Art Russell and
> Alex Langoussis confirmed these observations.
> NGC 1569A 04 30 48.2 +64 50 59
> NGC 1569B 04 30 49.0 +64 50 53
> Selected refs:
> 1991 ApJ, 370, 144
> 1996 A&A, 312, 391
> Hopefully, some of will take the challenge and duplicate these observations.
> - Rich Jakiel
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