Talk:Hoag's Object

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hey

[edit] Object size

I've looked at this object on the DSS2 red plates, and it is much closer to one minute of arc in size. I suspect the size given here of 0.25' is of the central bright disk, and not the entire object. This needs revising. Fehrgo (talk) 06:13, 15 March 2008 (UTC)

OK, Hoag quotes the radius as 17".

"This object, which appears to be a perfectly symmetrical planetary nebula, was discovered on a 75-minute Jewett Schmidt plate. A perfect halo, 17" in radius, surrounds a difuse central image." The Astronomical Journal, No 1186

Fehrgo (talk) 06:22, 15 March 2008 (UTC)

And here I thought it meant "inches", and edited it out, and had to revert myself for stupidity. I included a "(minutes of arc)" thing for less-astronomically fluent people such as myself. Did the radius versus diameter thing get corrected yet? Huw Powell (talk) 02:10, 9 June 2008 (UTC)