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nickjames's picture
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Last observation

My last observation was on July 7.9 at 16.52. It's in the BAA database. Richard Sargent also got some observations later that night at around 16.10. They are in the database too.

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Timing the start of this superoutburst.

Nick, These two observations constrain the start of the superoutburst  rather well giving a super outburst period of about 59 days. This is in line with recent periods. IX Dra does seem to be fairly consistent. Until the next time of course.

Cheers 

Stewart

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Timing the start of the next superoutburst in one weeks time

IX Dra has a superoutburst period of around 60 days - give or take a day. This means the next superoutburst is likely to be around September 5 -7th.  The most recent magnitude I have is around 17.7 CV (on 2459456.5 Aug 30)  using SLOOH Canary 2. Further observations to capture the start of the superoutburst would be welcome.   

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The last two nights it has

The last two nights it has been brighter than mag 15 so the outburst looks to be on schedule. Tonight (Sept 6) I have 14.7 unfiltered.

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Current outburst.

Nick,  I'm pleased to see your results in the BAA database as neither SLOOH or AAVSOnet have delivered results for last night. Slooh had it at CV 14.9 at UTC 2021/09/06 00:10:23.  Looks like the superoutburst is under way and it was around the time expected. Normally they  last for about 10 days. Stewart

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September 2021 outburst

AAVSOnet New Mexico gave 14.7 V filter  on 2021/09/07 02:29:22.

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Superoutburst is over

IX Dra was at V mag 17.9 on 20 Sept 04.42 UTC marking the end of the superoutburst. Almost immediately a normal outburst has started. I think the start of this superoutburst was recorded well and I expect a few more observations to appear in due course. 

Thanks to N D James and N L Joslin for observations in the BAA database.

The next superoutburst will be around fireworks night!

Stewart

 

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November's IX Dra superoutburst

Looking at the data reported to the BAA and AAVSO databases, the start of the next superoutburst could be in 3-4 days time.

A normal outburst peaked at mag 15.3 (CV)  on the evening of 29 Oct (NDJ and I) was probably the last before the superoutburst.

IX Dra is quite well placed in the evening sky. Good luck.

Stewart 

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Superoutburst is underway - started on the Oct 31.

It looks like Nick James's observation on the evening of Oct 31 with an unfiltered magnitude of 14.81 marks the start of the outburst. With a JD of 2459519.29 this is only 56 days since the previous superoutburst but within the range of many recent results reported in VSSC 187. 

Lets see how long this superoutburst lasts.

My next target is V1504 Cyg whose next superoutburst is due in a two weeks time.

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