Hi Greg,
This is jawdroppingly awesome!
Quote:
Originally Posted by gregbradley
Also known as LH120-No70 so yes rather obscure but often seen in widefield LMC images. I have always thought it was a pretty shaped nebula. Thanks to Rick - its Henize 70.
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I believe the correct designation would be "LHα 120-N 70"
Or modernised to "LHa 120-N 70" for easier entry into computers
restricting symbols to just ASCII characters.
L = Lamont-Hussey Observatory
Hα (or Ha) - Hydrogen alpha
120 - refers to the survey plate it appeared on (covers the LMC)
N - designates it is a nebula rather than a star (S)
70 - designates the serial number on that plate
Plate 115 covered the SMC.
So there is also a different object in the SMC designated "LHα 115-N 70".
I'd recommend avoiding referring to it as "Henize 70" as there are really
two totally different objects in the Henize catalogue both of which have
the serial number of 70.
SIMBAD recognises "LHa 120-N 70" with the letter "a" in Ha rather
than the Greek symbol for lower-case alpha used in the 1956 Karl Henize paper.
SIMBAD does not recognise "Henize 70" probably for the simple reason
there is no such designation.
Once again, congratulations on an absolutely stunning image!
Best Regards
Gary Kopff
Mount Kuring-Gai NSW