Ron: During the 86 and 88 oppositions of Mars The Tharsis volcanos were seen in 6 inch apertures. Mars at best still requires much time and study to see ...
... minor's few deep sky objects, as nonexistent? it seemed like a pleasant enought little open cluster to me when I decided to try out the glories(?) of this...
... Maybe "not a physical cluster" would be a better description. It's certainly no worse as a star-group than lots of others. \Brian...
Brian Skiff
brian.skiff@...
Mar 2, 2003 1:17 am
9746
Hi Barbara, I also saw Tharsis volcanos in 1988 in a 6 inch.In New Zealand we got some wounderful views as we got some great skys as it was our winter and mars...
... and ... Traveler, ... this ... two ... Thanks Jane. Wow, you've got quite a few very nice sketches and from a 4.1" refractor! I've bookmarked them and...
I'd like to take the opportunity to thank everyone for their response. I sure look forward to a swell Martian time this year. ... my 6 inch ... in a 6 ... for...
Greetings. As some of you already know, I was recently appointed the coordinator of the Webb Society's Galaxy Section. Since a good number of the participants...
I had contacted Bob Erdmann at The NGC-IC Project about the confusion and he was able to dig through and find that the NED is correct and SIMBAD has the wrong...
deepskyspy (Alan Gold...
deepskyspy@...
Mar 4, 2003 12:33 am
9751
Perusing the constellation Lupus in Megastar 5.0, I came across a dark nebula labeled SL 8. Plotting this field on the DSS, it shows up as very opaque, and...
A conference paper by Alistair Walker posted tonight on the Los Alamos 'astro-ph' preprint server includes a current review of distances of Local Group...
Brian Skiff
brian.skiff@...
Mar 4, 2003 7:29 am
9753
... SATELLITES OF JUPITER S. S. Sheppard, University of Hawaii (UH), reports the discovery of seven new satellites of Jupiter, with the astrometry, orbital...
Brian Skiff
brian.skiff@...
Mar 4, 2003 10:37 pm
9754
... Thanks Brian and your news immediately invoke my imagination! As with the debate over whether Pluto is a planet, I wonder at which point in size can a...
The IAUC and accompanying MPEC indicated absolute magnitudes of 15 to 16, which corresponds to sizes of roughly 2 to 5 km depending on albedo. So these are...
Brian Skiff
brian.skiff@...
Mar 5, 2003 2:28 am
9756
And, if known, the total for Jupiter now is ______????? Neal...
Sunday 2nd March Llyn Brenig, North Wales 20:00 – 01:00 UT Conditions – some cloud early on, excellent until midnight, then good. It was very transparent!...
I didn't do it, honest! The Light Cup passed this cartoon to me to be posted ;-). http://members.cox.net/ronby/Photos/Observer-vs-Collector.jpg Ron B[ee]...
I a big paper posted tonight on the astro-ph preprint server, Thim et al give a distance to M83 based on lightcurves of 12 delta Cepheids. The derived value...
Brian Skiff
brian.skiff@...
Mar 6, 2003 4:53 am
9760
I'm asked fairly regularly how far away the dark clouds are that make up the Milky Way Rift that runs through the summer Milky Way. A study of an area in...
Brian Skiff
brian.skiff@...
Mar 6, 2003 4:57 am
9761
I have uploaded the naked-eye limiting magnitude charts I created for a book I wrote to: http://www.cybertrails.com/~dickson/limit-mag.pdf These charts are...
I picked the subject because the objects of my question may be so obscure as to even be OT for *this*, but I figure it is worth a try (actually, I won't be...
... Names like these have long been used for nebulae catalogued by Henize (actually H-alpha emission, not nebulae necessarily) in the LMC. I had forgotten the...
Brian Skiff
brian.skiff@...
Mar 7, 2003 1:29 am
9764
I've been testing this new gadget someone on the Tele Vue eGroup has built for me, a Focus Lever that slip onto my focuser which allows me to focus without or...
... Well, the gap itself varies in width from about 0.5 arc second near superior conjunction to about 0.7 arc second near opposition. A 4 inch has a Rayleigh...
David Knisely
KA0CZC@...
Mar 7, 2003 6:01 am
9766
... actual "dark" ... Cassini ... the ... nature ... as 2 ... broader ... Thanks David. BTW, I re-read your article of Saturn's Ring again last night before I...
... It can *detect* the division as a dark feature as long as their isn't another dark feature too close to it, but it isn't exactly resolved. This is what...
David Knisely
KA0CZC@...
Mar 7, 2003 7:35 pm
9768
Brian, I spotted this PN WeBo1 (PN G135.6+01.1) in a paper on the pre-print servers. I am guessing I may have missed your original post on it. There are no...
Our position within the milky way galaxy allows us to see the spiral arms on either side of the solar system, of course these are the summer and winter "milky...
icgalaxies@...
Mar 7, 2003 9:16 pm
9770
I'm not sure I really understand your question but, this web page may help. http://anzwers.org/free/universe/milkyway.html ... ___________________________ ...
The problem with seeing faraway spiral arms is that there is heavy obscuration in the plane of the Milky Way, due to interstellar dust. There are "windows", or...
... I'm guessing that Keith has a not quite correct view of what the thing in the sky we call the Milky Way represents. As Peter noted, the next arm out from...
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