I know I'm late to this party, but I read about these stars with interest and last night finally had a chance to check them out with my 155mm refractor. The...
23749
lodrigj
May 13, 2012 9:23 am
Are there any reliable reports of any naked-eye observations of Neptune? At magnitude 7.8 to 8.0 it seems like it might just barely be possible from a very...
23750
Brian Skiff
bas@...
May 13, 2012 7:10 pm
... I've tried from Anderson Mesa in recent years, but couldn't get quite faint enough in the immediate area (V mag 7.2-7.5 stars). I think it is a matter (for...
23751
mllrgrnt
May 14, 2012 5:39 pm
All other factors being equal(observing experience, etc.), on average, what magnitude advantage would say an 18 year old's eyes have over a 30, 40, 50, etc....
23752
pensack1
May 14, 2012 9:03 pm
Visual acuity has a lot to do with it--more important than age, IMO. I extended mt ZLM from 6.3/6.4 to 6.8/7.0 by merely getting glasses with a good distance...
23753
mllrgrnt
May 15, 2012 2:22 am
Do you have night myopia? Or do wear the same glasses for daytime use? Grant...
23754
pensack1
May 15, 2012 4:22 pm
Grant, I use the same glasses for daytime use. In a telescope, I just refocus, and I can correct, by focusing, to 20/10 or 20/15. However, my normal vision...
23755
Brian Skiff
bas@...
May 19, 2012 2:02 am
The UC-Berkeley group have announced a potentially bright supernova in the Virgo cluster galaxy NGC 4424. The galaxy has a somewhat irregular core, probably...
23756
OWEN BRAZELL
obrazell
May 19, 2012 7:11 am
We can only hope :-( I am really not sure why the Webb meetings are so poorly attended compared to the DSS meetings. I am not sure if is the venue, lack of...
23757
OWEN BRAZELL
obrazell
May 19, 2012 7:18 am
Oops sorry reply to wrong e-mail.. My aplogies# Owen ________________________________ From: OWEN BRAZELL <o.brazell@...> To:...
23758
Les Dalrymple
ngcles
May 19, 2012 7:34 pm
Hi Brian & All, Observed it tonight (19052012) down at our "nearly dark" (sqm = 21.2) site 100km SW of Sydney in the southern highlands. Seeing was 5/10 early...
23759
Rodolfo Ferraiuolo
nocherito2006
May 19, 2012 8:03 pm
Hi, all I have not found who discovered the galaxy NGC 6744A (PGC 62815 / ESO 104-G038) Somebody knows who was? Thanks! Rodolfo...
23760
Brian Skiff
bas@...
May 20, 2012 5:41 am
... This is listed in the original NGC catalogue with a John Herschel number, but also as having been observed by Dunlop. The dates may have been similar, but...
23761
Brian Skiff
bas@...
May 20, 2012 5:51 am
The CBET issued late in the day for UT Saturday gives further magnitudes as bright as R (red) mag 15, so perhaps somewhat fainter visually. Two spectroscopic...
23762
Auke
aukeslotegraaf
May 20, 2012 7:32 am
Rodolfo, Looking in SIMBAD at NGC 6744A's entry, the earliest reference that uses the designation "6744A" seems to be the Southern Galaxy Catalogue (1985). ...
23763
Sue French
susancfrench
May 20, 2012 4:47 pm
Rodolfo, It's listed as ESO 104- G 38 in: ESO/Uppsala survey of the ESO(B) atlas Lauberts, A. Garching: European Southern Observatory (ESO), 1982 Accessible...
23764
Brian Skiff
bas@...
May 20, 2012 6:10 pm
Now that I read it carefully, I see that it's NGC 6774_A_ that's being asked about. I agree that it might be difficult to pin down who first noticed the...
23765
Rodolfo Ferraiuolo
nocherito2006
May 20, 2012 6:38 pm
Brian, Auke, Sue, Thank you very much! I also saw the Southern Galaxy Catalogue (1985) CORWIN H.G.; DE VAUCOULEURS A.; DE VAUCOULEURS G. (In Simbad-CDS...
23766
Brian Skiff
bas@...
May 20, 2012 6:49 pm
Ah, this is a good catch, and indeed de Vaucouleurs mentions the companion explicitly at the bottom of the first page: "A faint, irregular blue satellite...
23767
Rodolfo Ferraiuolo
nocherito2006
May 20, 2012 7:04 pm
Thanks, Brian Yes… > this must be the "discovery" description”< Regards, Rodolfo ... De: Brian Skiff <bas@...> Asunto: RE: [amastro] NGC 6744 Para:...
23768
GN
gnowellsct
May 21, 2012 3:47 am
Even in photographs this is hard to identify. I observed it last night at a star party with a bunch of serious amateurs and also Sue French who is fast, very...
23769
Wayne (aka Mr. Galaxy)
mr_gxy
May 21, 2012 3:47 am
15480 Empire Rd. Benson, AZ 85602 hm ph: 520-586-2244 We're up in Page, AZ (NE of the Grand Canyon) to view the annular eclipse. I don't know that we needed to...
23770
Brian Skiff
bas@...
May 21, 2012 3:59 am
... I don't know just how your visual spectroscope works in terms of the optical arrangement, but I wonder if you're getting high-order reflections somewhere...
23771
Brian Skiff
bas@...
May 21, 2012 5:47 am
... Lowell had a crew at Wupatki National Monument, just inside the line for the annular event, and reports are they had a very large crowd there. (For...
23772
GN
gnowellsct
May 23, 2012 4:19 am
Thanks Brian. I suppose the dot issue could stand some more evaluation on an open cluster. Maybe stars below a certain faintness don't streak (show a...
23773
Wayne (aka Mr. Galaxy)
mr_gxy
May 23, 2012 4:19 am
15480 Empire Rd. Benson, AZ 85602 hm ph: 520-586-2244 Brian, The musical gig (at Lowell?) would be very interesting. One of the things I remember vividly from...
23774
Wayne (aka Mr. Galaxy)
mr_gxy
May 23, 2012 4:20 am
15480 Empire Rd. Benson, AZ 85602 hm ph: 520-586-2244 Actually those are pretty decent images, Darrell, much better than the few I got. If possible, I wouldn't...
23775
Brian Skiff
bas@...
May 23, 2012 4:33 am
OK, so this is a blazed grating combined with a cylindrical lens to widen the spectrum a bit. The un-dispersed 'dots' are thus almost certainly coming from...
23776
alan whitman
alandwhitman
May 23, 2012 4:35 pm
Two-foot Diameter Pinhole Crescents and Endless Baily's Beads Jim Failes had worried that we wouldn't find a suitable deciduous tree in the Nevada desert to...
23777
Paul Alsing
paul.alsing...
May 24, 2012 1:48 am
... Hi All, I observed this supernova last Saturday night from San Diego's Anza Borrego desert, using a 20" f5 dob with a 13mm Ethos eyepiece. It was visible...
