From jop at astro.columbia.edu Wed Sep 2 08:10:25 2015 From: jop at astro.columbia.edu (Joe Patterson) Date: Wed, 2 Sep 2015 08:10:25 -0400 Subject: (cba:news) J1955+00 and radio silence Message-ID: <55E6E731.1050302@astro.columbia.edu> Dear CBAers, I just received word from Hannes Breytenbach that during the week starting now, he and colleagues will be observing our old friend from early summer, J1955+00. They have great high-speed photometry, and our specialty is fairly-low-speed-but-long-duration photometry, so it would be great to combine our data with theirs. They observe from South Africa, so USA, AU, and NZ observers will obviously be able to supplement with light curve from other longitudes (thus subduing aliases). But even at close-to-South_Africa longitudes, I hope you consider it a top priority target, since they have variable weather and other targets too (probably some fainter ones for ideal weather). In practice, a star of this brightness for a big telescope is often a target for in-between weather conditions. This is a really great target, really ideal for the CBA since the light curve is ever-and-rapidly-changing - probably the victim of several (I suspect) clocks beating in and out of phase with each other. We're uniquely suited to be the guys to figure all this out - even more if "we" includes *them*, which it does. In a few hours I'm leaving for Italy (Rome and Palermo) for 1.5 weeks. Only sporadic email access during that time, so probably I'll be keeping even-deeper-than-usual radio silence*. Enrique will take up the slack, so campaign choices won't get too stale. Also, maybe some of the major J1955+00 observers from June can chime in with recommendations re comp stars or anything else. AAVSO meeting coming up in Boston in early November. I hope to see a bunch of you there. I met some new people - new to me but *stalwarts* in our network - in Muncie in June, and Boston is a whole lot easier to reach than Muncie, Indiana! joe *Since ours tends to be somewhat of a graybeard hobby, maybe the WW2 slang is still OK. ____________________________________________________________ Center for Backyard Astrophysics (CBA) mailing lists https://cbastro.org/communications/mailing-lists/ From jop at astro.columbia.edu Sat Sep 12 23:36:01 2015 From: jop at astro.columbia.edu (Joe Patterson) Date: Sat, 12 Sep 2015 23:36:01 -0400 Subject: (cba:news) some new and old targets In-Reply-To: References: <5d987050d02acbef7dfff700631c42c7@newcastleobservatory.ca> <55ED23C7.5000302@astro.columbia.edu> <99ee4121f1598abef28b9594296aed26@newcastleobservatory.ca> <36AD3BFB-81FF-4BF9-A41D-2F298806F866@gmail.com> <2839b1d1f810e182081a82aa65afbd7d@newcastleobservatory.ca> <55F34856.8000006@centurytel.net> <2990e4618f39d014197e0d4c92e93574@newcastleobservatory.ca> Message-ID: <55F4EF21.5010706@astro.columbia.edu> Yes, QU Vul is a bridge too far for most, or maybe all, of you. Not a particularly good suggestion on my part! QR And, ES Cet, and V455 And would be better investments, plus V1101 Aql. Early-season observations of V418 Gem, V405 Aur, and V647 Aur would also be very welcome, plus "Paloma" and FS Aur. Which all implies that both LQ Peg and IGR J1955+00 should be retired. Great campaigns on both! Not meant to be a full review. Still in Italy with only sporadic internet and running strictly on batteries. Back Tuesday. joe On 9/12/2015 6:27 PM, Lew Cook wrote: > Unless it has had an outburst, QU Vul is faint, but if you can get to > 19, go for it! I tried and VPhot confused QU Vul with its brighter > companion. That 15.1 star is only 7" N of QU. I couldn't see it - > probably because I had poor focus and bad collimation at the time. > > Lew > > > On Sat, Sep 12, 2015 at 12:56 AM, Michael J. Cook, Newcastle Observatory > > wrote: > > __ > > Hi Jim, > > I think I'll get on Qu Vul (top priority from Joe P.). The other > September menu stars are more faint anyway. I'm wondering how much > longer we need to be on LQ Peg. Looks like another week. > > --- > > Michael J. Cook > > AAVSO: CMJA > CBA: Ontario > MPC: H61 > > *Web Site:* http://www.newcastleobservatory.ca > *Google+*:https://plus.google.com/u/0/104889693035082401323 > *Twitter:* https://twitter.com/newcastleobserv > *FaceBook:* https://www.facebook.com/michael.cook.9406 > *Skype:* newcastleobservatory > > On 2015-09-11 17:32, Jim Jones wrote: > >> Hi Mike >> >> I've had a nice 5 or 6 nights and am hoping for 3 or 4 more but >> fall is definitely here. >> >> What are you doing after you shut down on LQ Peg? I hate to waste >> a couple of hours of photons so have been grabbing V405 Aur. >> It's only recommendation was that it was an IP that was handy. >> Kinda boring though. >> >> Jim Jones >> >> On 9/11/2015 1:09 PM, Michael J. Cook, Newcastle Observatory wrote: >>> >>> >>> I did manage to get nearly 6 hrs on LQ Peg last night. >>> >>> --- >>> >>> Michael J. Cook >>> >>> AAVSO: CMJA >>> CBA: Ontario >>> MPC: H61 >>> >>> WEB SITE:http://www.newcastleobservatory.ca >>> GOOGLE+:https://plus.google.com/u/0/104889693035082401323 >>> TWITTER:https://twitter.com/newcastleobserv >>> FACEBOOK:https://www.facebook.com/michael.cook.9406 >>> SKYPE: newcastleobservatory >>> >>> On 2015-09-08 12:30, Michael J. Cook, Newcastle Observatory wrote: >>> >>>> Hi Enrique, >>>> >>>> I wasn't able to get on LQ Peg because of cloudy skies. The forecast looks like I may get back o it Wednesday and/or Thursday night. >>>> >>>> --- >>>> >>>> Michael J. Cook >>>> >>>> AAVSO: CMJA >>>> CBA: Ontario >>>> MPC: H61 >>>> >>>> WEB SITE:http://www.newcastleobservatory.ca >>>> GOOGLE+:https://plus.google.com/u/0/104889693035082401323 >>>> TWITTER:https://twitter.com/newcastleobserv >>>> FACEBOOK:https://www.facebook.com/michael.cook.9406 >>>> SKYPE: newcastleobservatory >>>> >>>> On 2015-09-07 20:10, Enrique de Miguel wrote: >>>> Michael, >>>> >>>> Are you with LQ Peg tonight? >>>> >>>> Enrique >>>> >>>> On Sep 8, 2015, at 1:56 AM, Michael J. Cook, Newcastle Observatory wrote: >>>> >>>> Ok, I'll keep at it and check in another week from now. I just submitted data from a time-series run taken last night (Sep 6/7). >>>> >>>> --- >>>> >>>> Michael J. Cook >>>> >>>> AAVSO: CMJA >>>> CBA: Ontario >>>> MPC: H61 >>>> >>>> WEB SITE:http://www.newcastleobservatory.ca [1] >>>> GOOGLE+:https://plus.google.com/u/0/104889693035082401323 [2] >>>> TWITTER:https://twitter.com/newcastleobserv [3] >>>> FACEBOOK:https://www.facebook.com/michael.cook.9406 [4] >>>> SKYPE: newcastleobservatory >>>> >>>> On 2015-09-07 01:42, Joe Patterson wrote: >>>> >>>> Oh yes, still a good target! >>>> >>>> joe p >>>> >>>> On 9/6/2015 10:15 PM, Michael J. Cook, Newcastle Observatory wrote: >>>> I'm on LQ Peg right now. Joe Patterson's August 29 menu said: "LQ Peg. Very impressive light curve, and worth continuing for at least another week. Just a single period (2.99 hrs) evident so far, but hints that some more subtle structure may emerge with more work." Should I continue on this target past tonight? Joe said continue for "at least another week". -- Michael J. Cook AAVSO: CMJA CBA: Ontario MPC: H61 *Web Site:*http://www.newcastleobservatory.ca [6] *Google+*:https://plus.google.com/u/0/104889693035082401323 [2] *Twitter:*https://twitter.com/newcastleobserv [3] *FaceBook:*https://www.facebook.com/michael.cook.9406 [4] *Skype:* newcastle >>>> observatory ____________________________________________________________ Center for Backyard Astrophysics (CBA) mailing listshttps://cbastro.org/communications/mailing-lists/ [5] >>>> >>>> ____________________________________________________________ >>>> Center for Backyard Astrophysics (CBA) mailing lists >>>> https://cbastro.org/communications/mailing-lists/ [5] >>> ____________________________________________________________ >>> Center for Backyard Astrophysics (CBA) mailing lists >>> https://cbastro.org/communications/mailing-lists/ [5] >>> >>> ____________________________________________________________ >>> Center for Backyard Astrophysics (CBA) mailing lists >>> https://cbastro.org/communications/mailing-lists/ [5] >>> >>> ____________________________________________________________ >>> Center for Backyard Astrophysics (CBA) mailing lists >>> https://cbastro.org/communications/mailing-lists/ [5] >>> >>> >>> >>> Links: >>> ------ >>> [1]http://www.newcastleobservatory.ca >>> [2]https://plus.google.com/u/0/104889693035082401323 >>> [3]https://twitter.com/newcastleobserv >>> [4]https://www.facebook.com/michael.cook.9406 >>> [5]https://cbastro.org/communications/mailing-lists/ >>> [6]http://www.newcastleobservatory.ca/ >>> >>> >>> >>> ____________________________________________________________ >>> Center for Backyard Astrophysics (CBA) mailing lists >>> https://cbastro.org/communications/mailing-lists/ >> >> >> ____________________________________________________________ >> Center for Backyard Astrophysics (CBA) mailing lists >> https://cbastro.org/communications/mailing-lists/ > > ____________________________________________________________ > Center for Backyard Astrophysics (CBA) mailing lists > https://cbastro.org/communications/mailing-lists/ > > > > > ____________________________________________________________ > Center for Backyard Astrophysics (CBA) mailing lists > https://cbastro.org/communications/mailing-lists/ > ____________________________________________________________ Center for Backyard Astrophysics (CBA) mailing lists https://cbastro.org/communications/mailing-lists/ From jop at astro.columbia.edu Sat Sep 12 23:45:31 2015 From: jop at astro.columbia.edu (Joe Patterson) Date: Sat, 12 Sep 2015 23:45:31 -0400 Subject: (cba:news) AQ Men and IM Eri Message-ID: <55F4F15B.7090008@astro.columbia.edu> And I forgot AQ Men, which Josch has now started observing. This is likely a great star - probably a *grazing* eclipser, where we can trace the changes in disk shape when the secondary alternately blocks and unblocks the disk as the disk wobbles back and forth. Great all-night target for the Australites. Plus IM Eri - the beginning of a several-month campaign on this bright and interesting star. (Spmewhat) recent MNRAS and astro-ph paper by Armstrong et al. on both stars. joe ____________________________________________________________ Center for Backyard Astrophysics (CBA) mailing lists https://cbastro.org/communications/mailing-lists/