On November 17, 2009 I discovered a previously unknown double star by means of an asteroid occultation. That is, the star TYC 4677-00696-1 is not shown as a...
... This is HD 5667, which Nancy Houk classified as F5V. That would make the star about a factor of 3 more luminous than the Sun, instead of 0.08 its...
Brian Skiff
bas@...
Nov 18, 2009 6:17 pm
22685
Thanks, Brian. I thought that F8 was a strange spectral classification for a dwarf, but that was the information that Guide 7 gave me. I appreciate your...
... Well, it is a dwarf (i.e. main-sequence star), but just a bit hotter (brighter) than the F8 spectral type, which comes from the original HD catalogue, and...
Brian Skiff
bas@...
Nov 18, 2009 7:58 pm
22687
Does anyone have any recorded data on past years of the Winter Star Party for how many clear nights there were during the week of the party? I know sometimes...
Hi Alan, Our ad-hoc team was pleased to learn our observations uncovered a double star during the occultation of TYC 0819-00852-1 by 336 Lacadiera on April 16...
Hi Doug, Your double was the first of four binaries found in North America this year through asteroid occultations. Four doubles found during 76 observed...
Jerry, As far as I can tell, it will always be partly cloudy :-) Later today, I'll fetch my log books out of the fire file in the shed and see how many nights...
Below are the dates for which I have logged observations at WSP. You can read all of these dates as "the night starting...". In 2004 we had to pack the scope...
According to the 2009 Observer's Handbook: clear 30% scattered 38% broken 20% overcast 12% overall average = 38% cloudy Haven't been, yet, so I can't give you...
Last night, I gave R Aquarii, a variable star with a shell around it named Ced211. The star is quite funny, as it appears reddish, but dims only little with an...
15480 Empire Rd. Benson, AZ 85602 hm ph: 520-586-2244 Wow, nice, guys! I don't think even the HST could have detected that one. What is the actual separation...
Hi Grant, Thank you very much! Jerry ... A Beginner's Guide to DSLR Astrophotography: http://www.astropix.com/BGDA/BGDA.HTM An Advanced Guide to DSLR...
... It might be worth noting that these figures are nominal long-term averages from weather data and satellite images, not from actual observation. But it...
Brian Skiff
bas@...
Nov 20, 2009 9:27 pm
22699
... This close pair is involved in a mixed optical/common-motion visual trio. The brightest star, which has the new companion, is BD+08 2195 at: 9 16 47 +08...
Brian Skiff
bas@...
Nov 20, 2009 9:42 pm
22700
http://home.cc.umanitoba.ca/~jander/starparty/starpartywx.html WSP is about 1/3 of the way down the page. I find it rather accurate for the various parties...
I attended part of the time in 2009 and besides being cloudy on Tuesday and Wednesday nights, it was very windy as well none of the imagers were having much...
... Bill, Thanks for the link. I was unaware of this list. For all of the star parties with which I'm familiar, the percent clear appears to be quite...
Hi Brian, Thanks for pointing this out... I thought these numbers were for that specific week of the WSP. I'm trying to see if there is any correlation between...
Hi Bill, Thanks for this link, it is a great resource put together by Jay Anderson. The problem is that it is they are long term averages. So you could maybe...
Jerry A few notes on the WSP : A common complaint is the variable weather conditions; pack cold weather gear along with short pants and short sleeved shirts....
In re the El Nino/La Nina cycle, and the longer-term forecasts, you might have a look at the pages produced by the climate group at NWS: ...
Brian Skiff
bas@...
Nov 21, 2009 12:58 am
22707
... And based on data that could be miles and even mountain ranges away from the observing site. Additionally, the cloud sensor for ASOS stations (I'll assume...
CBET 2033, issued this evening, reports that Belgian amateur Patrick Wils and others have found from survey data that this object is much brighter than it has...
Brian Skiff
bas@...
Nov 21, 2009 5:19 am
22709
Brian, WSP normally has 6 possible nights. The exception was 2009, which was extended for the 25th anniversary. So out of the 87 nights I was there, I logged...
Richard, I don't know where you were, but folks who hang out in the Valley of the Dobs and especially those in some of the chickee circles say it's calmer ...
Last time was in 1998 when I logged with a 22" F/3.9 : " It is a small nebula extremely faint with rather sharp edges, visible only at high power with OIII...
Hi Yann, thanks for sharing your report! Your observations had been much more detailed than mine. This gives me more confidence that my observation could have...
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