I have one of those astronomy apps on my phone which is pretty ace for pretending to be clever. That's Arcturius, my dear, I'll say in a patronising way (and let's face it, my knowledge of the night sky is limited to the (a) the moon and (b) the plough and, on a good night, I might get (c) Orion).
Frankly the app would have been a lot more useful twenty odd years back when I was trying to get off with rather charming Hawaii-bound practitioner of the cosmos. Sadly, my rather dismal knowledged of the heavens meant that I never even got close to seeing her radio telescope.