[AZ-Observing] Re: NGC 1788 status

  • From: Brian Skiff <bas@xxxxxxxxxx>
  • To: az-observing@xxxxxxxxxxxxx
  • Date: Wed, 26 Sep 2001 14:00:19 -0700 (MST)

>> How hot do they have to be? Where's the line drawn between hot enough to
>> flouresce gas and not hot enough. B5?, B3?

     Between B1 and B2.  See the discussion and Hallas color photo at the
NGC/IC Web site:


...where the naked-eye stars in upper Scorpius serve to show the effect
very clearly.

This message is from the AZ-Observing mailing list.  If you wish to be
removed from this list, send E-mail to: AZ-Observing-request@xxxxxxxxxxxxx,
with the subject: unsubscribe.

The list's archive is at:  //www.freelists.org/archives/az-observing

This is a discussion list.  Please send personal inquiries directly to
the message author.  In other words, do not use "reply" for personal
messages.  Thanks.

Other related posts: