Indeed. The difference in position is quite visible. There's another image of that J-11 with the yellow striped missile.
View attachment 128590
I am not completely sure that's a R-77. Even the nose shape seems to be a bit off, when I try to compare it with R77. (of course perspective plays a role there)
Another one ...
![Su-27SK cn. 38205 + strange AAM.jpg Su-27SK cn. 38205 + strange AAM.jpg](https://www.sinodefenceforum.com/data/attachments/122/122208-c4a6e9b2e9f4f0dad06ea44d657e7aed.jpg)