› Forums › Variable Stars › V404 Cyg › Richard,
21 June 2015 at 6:25 pm
#576895
![](https://britastro.org/wp-content/uploads/2019/04/picture-14-1555163046-80x80.jpg)
Participant
Richard,
The McDonald data is very nice. It shows what can be done with a 2.1m telescope and a specially designed photometer running with a 2s cadence. The Argos photometer is described here.