Hi Greg, I've found your web site early on in my quest to view DSO with my 4" refractor. I had no idea it was your web site! I really like your descriptions...
Another fairly typical year in terms of clear nights in Flagstaff, with 90 fully photometric nights and 1067 clear hours, compared to annual averages since...
Brian Skiff
bas@...
Jan 2, 2002 8:14 pm
6318
... Keep Brian's numbers in mind when you read of the exaggerated claims of climate in the Southwest U.S. In the "Hot Shots" section of the February 2002...
... On the other hand, bear in mind that my reckoning is very conservative, which you can infer from my definitions of what constitutes clear, cloudy, etc. ...
Brian Skiff
bas@...
Jan 2, 2002 9:25 pm
6320
My definition of a clear night matches pretty well with what Brian calls either photometric or partial. Therefore, you wind up with something in the...
There's also the "ghost of alpha Centauri", which I think Timo Karhula pointed out to me, centered at about 14h36m -59o30' (a full degree in diameter). I...
Brian Skiff
bas@...
Jan 5, 2002 12:59 am
6325
Greetings all, Here's a question for you. Does anyone know where I can find a listing of Henize Planetary Nebula. I or should that be, we, are looking for info...
Keith Burns
keith_B@...
Jan 5, 2002 7:24 am
6326
This is the sort of thing that SIMBAD is for. The acronym abbreviation for Henize is 'Hen', not 'He'. So just do a search on the name Hen 3-1475. A look at...
Brian Skiff
bas@...
Jan 5, 2002 8:12 am
6327
Hi all, I'm new to this list, so I hope that this post is welcome here and not off topic. During the fall of 2001 I tried to observe all planetary nebulae in...
Keith, John and the rest - ... May I suggest using the newer version of this utility: http://messier45.com/cgi/dsdb/dsb.pl?mode=list&list=69 The list does not...
Dear Maestro, From the observation log below, I've got two questions: o What's the miminum aperture to see IC 418 red/pink color? o What's the current...
I haven't tried stopping down the aperture of my 25" to see the red color of IC 418, but I can tell you Bill Dickinson and I did see the reddish tinge at ...
Hi Keith. I have had a special interest in this object for awhile now (as a matter of fact, I posted a few images of this in the files section of amastro last...
Thanks for the info Eric. I've only been a member of this list for about month so I missed the previous postings. In our case, it's the picture that peaked our...
Keith Burns
keith_B@...
Jan 5, 2002 5:26 pm
6336
I think it was John Gretchen who asked about the magnitude of NGC 3448, as a possible candidate for a list of galaxies brighter than V mag. 10.5. Usually the...
Brian Skiff
bas@...
Jan 5, 2002 6:43 pm
6337
Ron B asked about current magnitude estimates for R Leporis. You can get this from services either at the 'vsnet' site or AAVSO. The vsnet index is at: ...
Brian Skiff
bas@...
Jan 5, 2002 6:50 pm
6338
Re: minimum aperture to see IC 418 as "red". I see it as red on its outer edges in my ten inch, but only at powers less than 110x. At higher powers, I see a...
David Knisely
KA0CZC@...
Jan 5, 2002 7:38 pm
6339
It is highly doubtful that you will see the jets of He3-1475, even under perfect conditions and the largest of apertures. You should however, be able to...
In the Companion to the 1st edition of Sky Atlas 2000.0, Thor's Helmet is listed as NGC 2359, which is what I used to name it on my nebula/filter survey...
David Knisely
KA0CZC@...
Jan 5, 2002 7:45 pm
6341
NGC 2359 is Thor's Helmet (aka Duck Nebula), and it sure looks like its namesake in my telescope. Kent Blackwell ... From: David Knisely <KA0CZC@...> To:...
Re: minimum aperture required to see red color. In Amateur Astronomy Magazine (summer 1997),an article I had written appeared on pages 4-5 dealing with this...
Elongated is good. Better then stellar. Sometimes it just the fact that you can see objects like this with your own eyes. Even tho the pictures usually look...
Keith Burns
keith_B@...
Jan 6, 2002 2:39 am
6344
I checked my notes to see if my comments included any colors. I described IC 418 as having a pinkish color. The observation was made with a 16" F5 dob at 160X...
