I seem to recall that the Pioneer images of Jupiter had a fair whack of red in them. And that was in the days where there wasn't much overprocessing. Of ...
Alister
aling@...
Mar 1, 2006 4:50 pm
17575
Hi Matthias, I gave this new PN candidate a try on Feburary 23, 2006 from Navaho Flats without any luck using a 20" f/5.0 reflector. I would have reported...
Kent Wallace
kwwallace@...
Mar 1, 2006 10:56 pm
17576
Matthias, Dana, For what it's worth, I had no luck with the new PN candidate in Taurus using my 63cm/25" scope (-33 deg lat, 6.5 NELM). My observations were ...
IAU Circular 8681, issued a few hours ago, notes that McNeil's Nebula has faded below mag 18. So its nice run over the last two years is over until the next...
Brian Skiff
brian.skiff@...
Mar 2, 2006 2:12 am
17578
I tried valiantly to glimpse McNeil's Nebula the first weekend in December from 7th mag. skies in central Texas. Armed with a new 12 inch Dob and a detailed ...
Hi Yann, Here is a reply I got back from Roger Clark: The integration time for "trained observers" is indeed on the order of 15 seconds. It is documented in ...
Kent, Mike, Thanks for your both of your reports. It's heartening to see you folks trying hard to spot this wily bit of soot. Just a matter of time before the...
Howdy all; I observed Barnard's Loop in Orion this weekend, 100 miles from the lights of Phoenix. Fascinating to realize that it is from a supernova many ...
... I'm not sure what the current 'lore' is on Barnard's Loop, but this can't be the usual sort of supernova remnant. Is it just an outflow boundary from the...
Brian Skiff
bas@...
Mar 2, 2006 11:50 pm
17583
15480 Empire Rd. Benson, AZ 85602 hm ph: 520-586-2244 Dana, Aren't you using the 30-inch up at Stony Ridge anymore? Your new PN would be a good target for it! ...
Hello Wayne, Yes, the 30" would make possible short work of this PN, with cloud cover over Los Angeles, of course : ) I'm living in beautiful downtown Petaluma...
Well, I am certainly learning something new, here. If you had awakened me from a deep sleep and asked if Barnard's Loop is a Supernova Remnant, I would have...
Again, I haven't looked into it, but here are a couple reasons ... in the way that the Veil and the Vela SNR have a shredded, filamentary structure. ... ...
Brian Skiff
bas@...
Mar 3, 2006 5:03 am
17587
Couldn't it be the sum outflow of all the OB stars in the region, integrated over time? Since the stars are all of slightly different ages and wind strengths,...
Alister
aling@...
Mar 3, 2006 5:48 am
17588
... I'm not certain that Barnard's Loop has been firmly indicated as a supernova remnant (the SNR is the "lore" in some amateur circles). It may just be a...
David Knisely
KA0CZC@...
Mar 3, 2006 5:54 am
17589
... Hi jerry, Well, keeping the eye steady for light to gather itself on the same retinal area for 15 seconds is certainly something for the trained observer ...
... Looking at huge open clusters/star clouds in other galaxies, you often see a shell of gas around it, which may be the same thing as Barnard's Loop. When...
Hi all, A few days ago I observed some of the dark nebulae in the Musca area; if you're interested, take a look at my brief report on my homepage at...
Yann, Jerry & all, I have a copy of Blackwell's paper. A brief summary of what I see as the relevant section: In the early parts of the experiments where the...
Where on the web does one find a copy of Tom Polakis' "Edge-On Galaxies of the Spring Sky"? If nowhere, do I have your permission to post this on Cloudy...
... Don, I'll answer this to the group, as it may apply to others, and we have a couple S&T editors subscribed. Sure, you have *my* permission to distribute it...
... have a couple S&T editors subscribed. ... but I don't know if that practice is ever kosher with either of the magazines. Frankly, I cannot remember if the...
Hi all, I wanted to share some highlights from an excellent observing trip to Anderson Mesa last Friday night/Saturday morning (Feb. 24/25, 2006). When I ...
Tom, I got your list off of your web site at psiaz, so didn't know it was ever published. I'll just create my own list and add others, and post that list. I...
Just thought I'd mention that I was finally able to see Sirius B through my 155mm EDT at the Winter Star Party last week. I first saw it in an 8" TEC apo, in...
Joe, et al; I split Sirius many years ago, using my 17.5" Dobsonian at 320X. I made a mask that stopped it to 6 inches or so, the largest aperture that fit ...
Howdy all; I had a look at this rarely viewed dark nebula last weekend, it is at 04h 27.4m +18 52, just southwest of Epsilon Tau; that is the "other" eye of...
Don, I have a flat galaxies list in the files section of Amastro. I also have a revised list as a Word document if you'd like me to e-mail it to you. Until...
