RE: [comets-ml] 2007 HE4 rmiles.btee@btinternet.com (28 Jul 2024 15:19 UTC)
(missing)
RE: [comets-ml] 2007 HE4 rmiles.btee@btinternet.com (28 Jul 2024 15:48 UTC)
Re: [comets-ml] 2007 HE4 Maik Meyer (28 Jul 2024 16:38 UTC)
Re: [BAA Comets] Re: [comets-ml] 2007 HE4 Nick James (28 Jul 2024 21:36 UTC)
RE: [BAA Comets] Re: [comets-ml] 2007 HE4 Jonathan Shanklin - BAS (29 Jul 2024 07:25 UTC)
Re: [BAA Comets] Re: [comets-ml] 2007 HE4 Maik Meyer (29 Jul 2024 08:03 UTC)
Re: [BAA Comets] Re: [comets-ml] 2007 HE4 Nick James (29 Jul 2024 08:32 UTC)
Re: [BAA Comets] Re: [comets-ml] 2007 HE4 Nick James (31 Jul 2024 11:24 UTC)
RE: [BAA Comets] Re: [comets-ml] 2007 HE4 Jonathan Shanklin - BAS (31 Jul 2024 11:36 UTC)
Re: [BAA Comets] Re: [comets-ml] 2007 HE4 James Dawson (05 Aug 2024 14:06 UTC)
Re: [BAA Comets] Re: [comets-ml] 2007 HE4 Nick James (05 Aug 2024 23:05 UTC)

Re: [BAA Comets] Re: [comets-ml] 2007 HE4 Nick James 29 Jul 2024 08:31 UTC
Maik,

That's interesting. Thanks.

Peter sent me one of his images of 2007 HE4 for use in my BAA article. I
attach it here. This is from 2007 April 18.875, 5x4 arcmin, N up, 0.40m
f/10 SCT. Definitely extended to the east. Great to think that this is
probably Denning's long-lost comet.

Jonathan - Thanks too for the JBAA reference. I'll look this up.

Does anyone know of any photographs/drawings of D/1894 F1? It was a
pretty faint comet and the section's archives get very patchy prior to 1940.

Nick.

On 29/07/2024 09:03, Maik Meyer wrote:
> Hello Nick,
>
> thank you very much! I am also very happy to have another comet struck
> out from the list of lost comets. And that it was the one of W. F.
> Denning makes it even more special. I know that 2007 HE4 was now found
> to be cometary - Peter Birthwhistle revisited his images and also the
> observations from the Dominion Astrosphysical Observatory in April 2007
> show it to be cometary after Dave Balam checked the images again.
>
> By the way, the piece you have attached from the Journal contains a nice
> detail. It refers to the comets of 1231 and 1746 as having more or less
> similar orbital elements. The latter one ("Kindermann's") is most likely
> a fabricated object. I have attached the excerpt from the Catalog of
> Unconfirmed Comets vol 1 on this one.
>
> Regards
>
> Maik