an outer planet of about 0.25 jupiter masses is near the 5:3 resonance and almost coaligned to the transiting planet.

The near-coalignment suggests the outer planet has a good chance of transiting, but not guaranteed. Indeed, the fact it is a Neptune sized planet suggests it should have already been detected if it was there. I have run a search through the data and Allan has manually checked for transits but there is nothing convincing in the data.

So we are thinking of running a paper on this system and I am working hard on finishing up all of the fits for this system. Perhaps we should arrange a telecon next week sometime to discuss everything. Including journal, naming of the system, confirming the system, etc.

It remained to confirm the planetary nature of KOI-872b. On the suggestion of David K, I performed a stability analysis with different masses of KOI-872b. The results are described in the following email.

[**From David N’s email to the HEK team on 1/30/2012:**]{}

I have done the stability test last week. The upper bound on Mb is 5 MJupiter for M\*$=$0.8 Msun, which is clearly planetary. I can increase M\* and see what happens. 