A bright supernova has been reported in the nearby galaxy NGC 2403 by K. Itagaki in Japan. Location is: 7 37 17.0 +65 35 58 (J2000), which is about 160" east...
Brian Skiff
brian.skiff@...
Aug 1, 2004 5:33 pm
13218
Brian, The position for this supernova is very close to a cluster of stars in NGC2403 called [L99] n2403-2866 in SIMBAD at (2000.0) 07 37 16.93 +65 35 57.7 ...
Kent Wallace
kwwallace@...
Aug 1, 2004 9:35 pm
13219
... This suggests the progenitor is a massive star, so thus a less-luminous type II supernova rather than type I (white dwarf progenitor). Presumably someone...
Brian Skiff
brian.skiff@...
Aug 1, 2004 9:59 pm
13220
I think there was some discussion of this phenomena (or a similar red-green phenomena maybe ... my memory is unclear on this) on amastro immediately following...
... I think that part of the intent of the article was "don't believe everything a highly processed CCD image shows you, because some fictious detail is ...
Alister
aling@...
Aug 2, 2004 4:17 pm
13222
A classic example is Markarian 205, which has a quasar-like small galaxy image inside the boundaries of the parent galaxy, apparently linked by a luminous...
... Yes, I think there is. Look in NED (http://nedwww.ipac.caltech.edu) to get links to current biblio. \Brian...
Brian Skiff
brian.skiff@...
Aug 2, 2004 10:30 pm
13224
Brian, You're faster than I am. Here are a couple of links: http://antwrp.gsfc.nasa.gov:80/apod/ap021007.html http://electric-cosmos.org/arp.htm I'll look at...
Hi, double stars from the catalogs of John Herschel (h, HJ) and F.G.W. Struve (S, STF) belong to the best targets for small telescopes. Does anyone know of a...
Ronald Stoyan
stoyan@...
Aug 3, 2004 12:34 pm
13226
Hi all, Study this jewel the other night, my observations done and below with the 12" S/C. Been looking for the faint galaxy initials which is embedded in the...
Magda Streicher
magda@...
Aug 3, 2004 1:23 pm
13227
Ronald, If the primaries are bright enough to be in the Bright Star Catalogue, you can look them up at: http://alcyone.de/ Also try: ...
I think the galaxy Magda is referring to is the one 2' nearly due south of the mag. 10 star HD 213056. The galaxy position is: 22 29 09.7 -20 47 17 (J2000)....
Brian Skiff
brian.skiff@...
Aug 3, 2004 9:02 pm
13229
Along with Sue's suggestions, it is good to realize that even in the post-Hipparcos era we don't really know the distances very well to any beyond about 100pc...
Brian Skiff
brian.skiff@...
Aug 3, 2004 9:59 pm
13230
An IAU Crcular issued in the last few hours includes a description of a spectrum of the supernova taken at Calar Alto in Spain. As we suspected, the event is...
Brian Skiff
brian.skiff@...
Aug 3, 2004 10:24 pm
13231
I have tried for that little stinker many, many times in a 10 incher and have never made even the first hint of a photon. I did not know the magnitude but on ...
I decided to head out to Navaho Flats tonight with my old orange C-8 and see what the supernova in NGC 2403 looked like before the moon came up. Here is my...
Kent Wallace
kwwallace@...
Aug 4, 2004 6:49 am
13233
The AAVSO charts for the field, which include a magnitude sequence, are available starting at: http://www.aavso.org/cgi-bin/searchcharts3.pl?name=sn%202004dj ...
... From: "Brian Skiff" <brian.skiff@...> To: <amastro@yahoogroups.com> Sent: Tuesday, August 03, 2004 10:57 PM Subject: Re: [amastro] Helix nebula ...
Magda Streicher
magda@...
Aug 4, 2004 7:48 pm
13236
Hi group. This might be a slightly OT question. Why is the constellation Bootes sometimes spelled as Boötes? Has it something to do with the 'double-o' and...
This time around I visit Vulpecula. Sorry about language mistakes. Magda. Telescope: 16" Schmidt-Cassegrain - Focal Length 4064mm (f10) Eyepiece: 2" - Super...
Magda Streicher
magda@...
Aug 5, 2004 12:18 pm
13238
Timo, The double dot is not, as one might expect, an umlaut but rather a dieresis. It is placed over the second of two consecutive vowels to indicate that it ...
The best way to pronounce all constellations is know how spell it in Portuguese. ;) For us, it is easy reading all constellations in Latin. To other foreign...
"Magda Streicher" <magda@p...> wrote: [snip] ... Magda, excellent report. Thanks for sharing. NGC 6802 is a beauty and very interesting. From my notes with the...
... Timo, In English the two-dots-above-the-letter(*) indicates that the letter is to be pronounced as a syllable by itself; instead of following the usual...
Fraser Farrell
fraser@...
Aug 5, 2004 4:42 pm
13242
Hi Sue, Do I understand your message to mean that I should pronounce Bootes as if it were spelled Boates? Thanks, Mike Casey Pasadena CA XT1 ... dieresis. ... ...
... I think it's supposed to be more like "bow-oh-tees". The whole point of the accent character is that it must be a new syllable ("oh" separate from "bow")....
Try to insert the stop between the 2 O's without attaching a W in between. Say Boh-oh'-teez, not boh-woh'-teez. A glottal stop works fine. Sue is right about...
Mike, Most folks go for: Bow-OH-teez I usually find that: Bow-ah-teez falls more trippingly off my tongue, although I no longer remember where I saw that...
