... At http://www.tass-survey.org/richmond/answers/eye.html is a -98 letter from Arne Henden about his using the CIE curves to determine the relationship, and...
... Right, but I'd much rather put my trust in empirical observations in this case. The JAAVSO paper uses a dense sequence around SS Cyg, mostly observed...
Brian Skiff
brian.skiff@...
Apr 1, 2002 9:58 am
7367
... Brian: I derived the 0.4 by computing spectral profiles and integrating the scotopic and V passband profiles over spectra at different temperatures, so I...
... This is basically what Arne did also. Since you came up with basically the same number, I'm sure the calculation is correct. In the case of the AAVSO...
Brian Skiff
brian.skiff@...
Apr 2, 2002 12:44 am
7369
Brian:are not It seems the star tests in the SS Cygni field would be biased to photopic vision, not scotopic. Unless small telescopes were used and all...
... oops: I was cutting and pasting down in the text and I remember the "are not" disapearing. Now I see where it jumped to. Please take no offense; it was...
... The stars ranged from V=7.5 to 15.3, i.e. far beyond the range of variation of the CV---they didn't use the sequence for the variable itself as the test....
Brian Skiff
brian.skiff@...
Apr 2, 2002 4:36 am
7372
Nerd April Fools' humor on the Los Alamos preprint server tonight: http://xxx.lanl.gov/abs/astro-ph/0204013 Superiority of the Lunar and Planetary Laboratory...
Brian Skiff
brian.skiff@...
Apr 2, 2002 7:01 am
7373
Hi all, I read sometimes ago (in S&T ?) about a map showing the locations of american observatories. Does anyone know about this (most recent edition, where to...
Steinicke-Streifenede...
Apr 2, 2002 7:30 am
7374
... #12871 11/18/2000 SCOPE 32 4 5 SONOITA 20N (183x) Easy, a disk seen between two faint stars, one W the other NNE, easy with direct vision. ...
For those having interest in asteroids......NASA says asteroid 1950DA has been rediscovered. (1.1km in diameter) and could impact the earth in March 2880. If...
Actually, the asteroid itself was recovered nearly two years ago with the LONEOS telescope at Lowell by our student Mike Van Ness, though it took a few days to...
Brian Skiff
brian.skiff@...
Apr 5, 2002 2:14 am
7378
===================================================================== April Skyhound http://www.skyhound.com/sh/skyhound.html ...
Yesterday night I have been looking with my 20"f/5 at Arp94 (NGC3226/3227). I saw it on a starchart, but I didn't know exactly what I should see. I only knew...
... (NGC3226/3227). ... see. I only ... NGC3226/3227, ... of about ... split ... Arp 94 was easily split with my 16" f4.5 using 16, 12 and 9mm Nagler eyepieces...
I just came across a recent article in _Spaceflight Now_ outlining the "discovery" by ESA astronomers of a disc of dust circling the Sun, outside the orbit of...
Well, something must have gone wrong. I think I didn't look at the right pace. I saw the Arp number on someone else chart and thought I found it. Jan ...
Jan, You may find this page helpful, http://users.aol.com/arpgalaxy/ . ... Clear skies, John N. Gretchen III Port O'Connor, Texas http://www.tisd.net/~jng3...
Jan, et al; Here are my notes with a friend's 12.5". Steve Coe NGC 3226 and 3227 form a pair 50' east of Gamma Leo. 3227 is pretty bright, considerably...
Steve Coe
stevecoe@...
Apr 7, 2002 8:44 pm
7385
Hopefully not off-topic.. ... The end of a small Near Earth Asteroid time: April 6, 2002, 20:22 UT = (22:22 local daylight-saving time) as observed from: Mils,...
Observing Ikeya Zhang over the last week or so using a 20" at 85 and 180X there is a curious appearance of a dark shadow around the bright coma and inner tail....
Here are my brief notes for the objects in question. NGC 3227 Leo Galaxy 10.8 * * Easy find with bright partner 3226. 12.5" Dob Fremont Peak...
richardn22@...
Apr 7, 2002 10:24 pm
7388
I've split them with my 10-inch, f/4.5 Newtonian at 82x. Here's a link to my sketch and observation notes: http://hometown.aol.com/billferris/n32263227.html ...
BillFerris@...
Apr 7, 2002 10:49 pm
7389
... Yes, it is real. I noted this a couple of weeks ago, and it was shown well on an image taken by Roland Christen, which also showed one of the "hoods" in...
David Knisely
KA0CZC@...
Apr 8, 2002 4:22 am
7390
... Well, the feature is real, but it is _not_ a shadow, just relatively less dense area between the hoods/arcs/jets. This is a common phenomenon in bright...
Brian Skiff
brian.skiff@...
Apr 8, 2002 4:37 am
7391
... Actually, I was referring to a long dark linear feature in the outermost coma and (mostly) the inner tail running down-sun from the nuclear region. It...
David Knisely
KA0CZC@...
Apr 8, 2002 8:11 am
7392
... I thought the Draco Dwarf was 'UGC 10822' about 5 hours RA East? Steve Dillinger...
Steve Dillinger
dillingr@...
Apr 8, 2002 4:19 pm
7393
Hi Steve, ... Um... just trying to see if you were paying attention? You are right, of course. Thanks for pointing this out. I'm not at all sure how this ...
Does anyone have the URL to one of the photos of the shadow. I have been unable to observe the comet since the Moon has gotten out of the way. We had an...
