The ROP star V337 Cyg has been reported to be in outburst by T. Gomez (see below). This would be the first recorded outburst since November 2006 (normal...
Hi Martin, This programme is still very much alive. Chris Jones undertook an extensive revue in 2005 and as it is a long term (a few years, at least) project...
Hi Martin, I don't know what anyone else is doing but I've worked up about half a dozen of these stars, mostly the Mira candidates. Chris ... Yahoo! Messenger...
I am very pleased to hear that this project is still on-going. Of course some of the entries are probably quite well covered by the Northen Sky Variability...
Hi Martin, Rest assured we take all available data into consideration. That said, thanks for the info which I will forward to Chris Jones just to make sure ....
R CrB has shown smooth cyclic variations between 5.9 and 6.1 during the period March to May 2007. This is typical behaviour for this star when at maximum ...
EnootnhoJ@...
Jul 9, 2007 8:12 pm
1192
Apropos John Toone's email: My recent estimates, all with 11x80 binos: Jun 27 2210 ut 6.1 Jly 01 2214 ut 6.2 Jly 07 2201 ut 6.3 I also have had it...
Michael J Gainsford
mikeg274@...
Jul 9, 2007 10:40 pm
1193
Differential photometry was done on R CrB at 22.48 UT on 9/7/07. 12 images of the star were captured with a Canon DSLR 350D at 800 ISO, 5 second exposures,...
Hello All, Further visual observation from Down Under, separated by 2 hours. CRBR 20070710.373 63 WPX CRBR 20070710.454 65 WPX A mean of 6.4...
Peter F Williams
pfwilliams@...
Jul 10, 2007 3:22 pm
1195
Hello, R CrB remains near maximum while V5558 Sgr continues to slowly brighten: CRBR 20070711.376 64 WPX SGRV5558 20070703.461 77 WPX...
Peter F Williams
pfwilliams@...
Jul 11, 2007 11:10 am
1196
R CrB caught fleetingly between clouds last night and seems to be getting back to normal: Jly 11 2222 ut C(2)v(1)D: 6. mag. Class 2. Clouds, speed. 11x80...
Michael J Gainsford
mikeg274@...
Jul 12, 2007 9:14 am
1197
Interesting Mike. I had it at 6.6 on Jly 11.910 with 10x50B, in a clear sky before clouds came over! Cheers, Gary ... Gary Poyner garypoyner@... ...
R CrB appears to be unsteady from night to night while the nova V5558 Sgr remains bright. CRBR 20070712.495 66 WPX SGRV5558 20070712.495...
Peter F Williams
pfwilliams@...
Jul 12, 2007 1:17 pm
1200
... I saw it under bad conditions with a 10x70 also at 6.6 mag on 20070710.906. It was definitly a bit fainter than the AAVSO 6.5 mag comp, but the AAVSO 6.2...
I as able to do differential photometry on R CrB at 22.5 UT, 12/7/07. 11 images were captured with a Canon DSLR 350D and analysed with AIP4WIN photometry...
Hello All, Observations last night (Friday) suggest both these stars have declined: CRBR 20070713.385 68 WPX SGRV5558 20070713.374 75...
Peter F Williams
pfwilliams@...
Jul 14, 2007 4:18 am
1203
Some good comments by Wolfgang Renz on the R CrB sequence. The monitoring of R CrB for fades is still exclusively a visual operation therefore it is important...
EnootnhoJ@...
Jul 14, 2007 10:53 am
1204
Both R CrB and the nova V5558 Sgr continue to decline: STAR YYYYMMDD(UT) MAG OBSERVER CRBR 20070714.342 69 WPX SGRV5558...
Peter F Williams
pfwilliams@...
Jul 14, 2007 2:44 pm
1205
I confirm R CrB faint at 6m.8 last night July 13th. It is tottering and doesn't seem to be able to make up its mind what it is going to do. Will look at it...
Thanks John, I'll avoid D in the future. On Thursday Jly 12 I found R CrB about 6.4, using D. It's either my eyes or this duff comparison. Whatever it is, it...
Michael J Gainsford
mikeg274@...
Jul 14, 2007 4:19 pm
1207
Hi Colin, Hi John I don't see any "irregular behaviour" or "it is tottering and doesn't seem to be able to make up its mind" during the last 100 d in the LC of...
Hi Mike My experience is like the one of John. When I use D, it seems for me to be about 0.2 mag fainter than the V mag value says. The influence of the red...
Differential photometry was done on 10 images of R CrB at 22.34 UT on 14/7/07 in good conditions using a Canon DSLR and AIP4WIN. The comparison star was 'E' at...
Last night (July 14th., 2007) Des made a photoelectric observation of R CrB at 6m.7. I observed it last night at 06.46 GMAT at 6m.8, Making it E (3)v(5)G, F -...
I was able to do differential photometry on R CrB at 23.25UT on 16/7/07 in good conditions though it was possible that there was thin even cirrus. Ten images...
Simultaneous V and I photometry of R CrB as follows: 2007 Jul 16 22:12UT JD 2454298.425 V = 6.746 +/- 0.005 I = 6.14 +/- 0.02 Based on 70 images in each...
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