If the estimate of the brightest stars at V=18 is right, and these stars are at absolute magnitude -1, then the cluster is about 60kpc away. Between 50 and 100...
Brian Skiff
brian.skiff@...
Jul 1, 2002 7:07 am
8160
After several attempts at NGC 6118, the most difficult object in the Herschel 400, and nothing but failures so far, tonight, my 4" TV-102 Light Cup decided to...
Hi All, Hang on Ron, was this NGC 6380 in Sco, the most dastardly of the NGC globulars or NGC 6540 in Sgr which you have referred to as an O.C but is now in...
... NGC globulars or NGC 6540 in Sgr which you have referred to as an O.C but is now in fact known to be a Globular (ie AKA DJ3??) you seem to drift from one...
Alister and others - Father Kemble's quote on observing is similar to one attributed (not surprisingly!) to Yogi Berra. Namely: "You can observe a lot by...
Brent A Archinal
barchinal@...
Jul 1, 2002 7:04 pm
8164
These are some pages of quotes I have bookmarked and would like to share, "We are probably nearing the limit of all we can know about astronomy." - Simon...
Well I couldn't find it in Bartlett's anywhere, but an observing chum of mine
from years ago had told that some rather famous (astro-)physicist had said,
"In...
About a year ago, I went with a few friends to go observing at the summit of
Mt. Evans here in Colorado. Where we observed from was at the parking lot of the...
Well, this object is indeed much more interesting that I originally thought. http://groups.yahoo.com/group/amastro/message/8160 There's some discussion going...
Since the magnitude at 5007 angstroms (which is close to visual) was published by G. H. Jacoby, A. R. Walker and R. Ciardullo in 1990, ApJ..365..471 for all 28...
Kent Wallace
kwwallace@...
Jul 2, 2002 1:38 am
8169
a pretty good image here, http://aladin.u-strasbg.fr/aladin/cache/mama_SERC_521s_S_651685_-99955.jpg 1994A&A...283...67B ...
... No; but it is unlikely to be an astrophysicist or anyone else statistically astute. In an infinite universe, an infinite number of improbable events must...
Barbara Wilson's Globular Cluster Observations Ron, below is my observation of 6540 in 1989, through my then new 20" from the Texas Star Party. Believe it or...
Hi Ron, For what it is worth Ron I'm inclined to agree with Barbara Wilson that you did see the cluster or at least the bisecting chain of stars. My old 20cm...
Hi All I have a copy of that article and have successfully observed 4 of these planetary nebulae. Numbers 3, 8, 19, and 20 in the list. I am looking for the...
Andrew Murrell
hector@...
Jul 2, 2002 10:14 am
8174
Hi Andrew, Were you using your 20" scope when observing these? Your observations are the first that I have ever heard of PN in the SMC. I would bet that more...
Kent Wallace
kwwallace@...
Jul 2, 2002 2:42 pm
8175
Thank you Les and Barbara for your help and most of all for your words of encouragement. NGC 6540 is indeed a very interesting and difficult object. I'm...
Since the list is only 26 objects, could Kent simply send a flat ASCII version to the group? I mean Kent's response to Andrew's post was more than twice as...
Brian Skiff
brian.skiff@...
Jul 2, 2002 6:31 pm
8177
Hi Brian, I have no idea how to convert my word file to a flat ASCII version. You are welcome to take my word file and convert it to a flat ASCII version for...
Kent Wallace
kwwallace@...
Jul 2, 2002 7:08 pm
8178
Small Magellanic Cloud SMP Planetary Nebulae SMP RA(2000.0) DEC(2000.0) MAG5007 OTHER NAMES 1 00 23 58 -73 38 05 17.29 N 1, Lin 2 2 00 32 39 -71 41 59...
Kent (or anyone else), I am curious if you already know the size estimates for the SMP? I can't imagine many of the larger ones being over 15" in diameter. ...
Hi Eric, If I remember correctly, most of the PN in the LMC & SMC are a less than an arc second across. I believe there was a large one listed as 4" across. ...
Kent Wallace
kwwallace@...
Jul 2, 2002 9:02 pm
8181
... All are essentially stellar. At the distance of the SMC, 1 parsec is only 3".7, and most of these high surface brightness PNe are ~0.1 that size. \Brian...
Brian Skiff
brian.skiff@...
Jul 2, 2002 9:03 pm
8182
I've been away, and I'm trying to finish up an article that will be mostly, if not wholly, about the Helix. To give folks something to shoot for, I'm trying...
There are claims of naked-eye visibility; I've tried but without luck. \Brian...
Brian Skiff
brian.skiff@...
Jul 2, 2002 10:00 pm
8184
Has anyone tried mounting an eyepiece on a camera lens for very low power, then putting an OIII filter on the eyepiece? I haven't done this yet at a dark site,...
Hi, Sue. From our dark-sky site 50 miles east of El Paso, the Helix was naked-eye for three observers on 26 Aug 2000. The Helix was at or near the meridian at...
I have seen the Helix as a definite ring in a 60mm and in my 80mm f/5 using the UHC and OIII filters, although again, the OIII provides much higher contrast....
David Knisely
KA0CZC@...
Jul 2, 2002 10:58 pm
8187
Hi Folks, Looking at my collected SMC data I noticed the emission-line object from the Henize list -- SMC N-9 ( = Lin 45 = SMC-DEM 9 ) -- has the catalogued ...
I've seen the double annulus structure fairly easily in my 10-inch with an OIII: http://members.aol.com/billferris/n7293.html Regards, Bill Ferris Flagstaff,...
