For those of you interested in seeing individual stars in NGC206, here is a link to the paper with astrometric measurements of the star magnitudes for the...
... That article was a little unclear, as it mixed in some "standard" stars with the catalog. I wish it had been more specific as to which were actually...
David Knisely
KA0CZC@...
Aug 1, 2007 7:50 pm
19934
The older paper I cited a couple days ago by van den Bergh is better than the Odewahn paper as regards visual observing. Often it is not straightfoward to...
Brian Skiff
bas@...
Aug 1, 2007 8:09 pm
19935
If I read the article correctly, it appears that most of the brightest 10-12 stars are not association members, but foreground stars. However, there would be a...
... Right. The most luminous stars will be the blue supergiants, so the colors will be diagnostic---there will be no stars with similar colors in the...
Brian Skiff
bas@...
Aug 1, 2007 10:18 pm
19937
... A point not yet broached and perhaps not fully unappreciated by some in regard to the actual visibility of any of NGC206 true stars, is that they will be...
... I feel this sort of insult is very much uncalled for. After all, this isn't a group of newbies here. Amastro represents perhaps the most prestigious...
... While I concede that it may be somewhat more difficult to see the stars of NGC 206 than it might be if they were isolated against a dark sky, the high...
David Knisely
KA0CZC@...
Aug 2, 2007 1:45 am
19940
here is an image of that area taken several years ago by me using a c14 in my light polluted backyard in the San Francisco bay area ...
Perhaps Richard could make another version of the NGC 206 image with a magnitude sequence labelled from the van den Bergh and/or Odewahn papers that would show...
Brian Skiff
bas@...
Aug 2, 2007 2:19 am
19942
Hi all, it was justly criticized, that there is no index on the objects presented in my new book on galaxies. This was Springers fault: they simply don't want...
Wolfgang, Thanks for the index. Even though I am not a big galaxy observer I have enjoyed reading through your book. You put a lot of good information in it...
Kent Wallace
kwwallace@...
Aug 2, 2007 4:50 pm
19944
Brian, The van den Bergh paper has a magnitude chart associated with it. Do you mean to have a similar chart with the star numbers from the abstract linked to...
... No, but the actual V magnitudes instead (say, rounded to 0.1 mag). Richard has his own image with the Hodge atlas objects relabelled on it, which is fine....
Brian Skiff
bas@...
Aug 2, 2007 9:18 pm
19946
Brian do you happen to know where the original descriptions of these can be found? Cliff Hedgepeth...
The first batch is certainly: 1949BHarO.919...41K Harvard Bull., 919, 41-42 (1949) Some new galactic clusters. KING I. ...and the second: 1964RGOB...82..106K ...
Brian Skiff
bas@...
Aug 4, 2007 1:09 am
19948
If you want to observe a fun planetary look at Heinze 2-380 in Sagattarius. It's almost completely hidden by the 8.7 magnitude star GSC7392:366. Only with a...
I have tried twice to observe this WeSb 4 planetary with my 20 incher on the Col D'Izoard (French Alpes) two weeks ago, but without succes. Transparancy was...
Jan, Thanks for trying WeSb 4. It is a real tough one. Clear skies! Kent ... From: Jan van Gastel To: amastro@yahoogroups.com Sent: Saturday, August 04, 2007...
Kent Wallace
kwwallace@...
Aug 4, 2007 4:00 pm
19951
Hi Jan, Can you give RA and Dec on for this target? I'd like to try it from a dark site in California next weekend. Thanks, Mark...
Thanks Jan... I the coordinates show this as PK 31-0.1. I'll add it to my observing list. I use an 18" f/4.5. I'll be at a site that's 4300' elevation and...
Are HR diagrams still used to determine age and distance for galactic or globular star clusters? I know this was done many years ago, my gut feeling says it...
AJ Crayon
acrayon@...
Aug 4, 2007 4:59 pm
19955
Henize, rather than Heinze.... The star is the type B0 supergiant HD 167402. The planetary is about 10" southeast of the star as Kent notes. A rough guess...
Brian Skiff
bas@...
Aug 4, 2007 6:35 pm
19956
HR diagrams in various forms, usually the observed magnitudes and colors (rather than luminosity and temperature, which must be inferred), remain a principal...
Brian Skiff
bas@...
Aug 4, 2007 6:58 pm
19957
I was looking at small planetaries and came across Mink 2-11 in Ophiuchus. It's very faint, but at 15" larger than stellar. I kept suspecting a bi-polar shape,...
... This is completely stellar (say less than 5" diameter at most) on the DSS short-V plate scan. The ASAS-3 database shows mean V magnitude of about 13.6,...
Brian Skiff
bas@...
Aug 4, 2007 9:51 pm
19959
Hi Kent, I've got positive observations from Steve Gottlieb, Jack Marling and myself for M 3-38 at (2000) 17 21 04.5 -29 02 59, MAG 16.6 SIZE stellar. My...
Kent Wallace
kwwallace@...
Aug 4, 2007 9:54 pm
19960
... Not much to write home about, but here it is ... 17.5" (8/5/02): located just 7' ESE of brighter M 2-11, this planetary was quickly centered, but was not...
