### Science notation question

Posted:

**September 3rd, 2017, 4:39 pm**I have an astronomy project that a reader has a question about how to read a particular number. Here is the passage.

I have added the bold to the numbers. How would someone read those numbers? The thought is 0.082 minutes, but the 'dot' is not a decimal, so is that a ratio number? Thank you!

ETA: Of course, I put this in the wrong sub forum! Duh!

Inquiries of this kind were, for some years, successfully pursued at the observatory of Dunsink, near Dublin. Annual perspective displacements were by Dr. Brünnow detected in several stars, and in others remeasured with a care which inspired just confidence. His parallax for α Lyræ(0·13′)was authentic, though slightly too large (Elkin's final results gave π =0·082′); and the received value for the parallax of the swiftly travelling star "Groombridge1,830′scarcely differs from that arrived at by him in 1871 (π =0·09′).

I have added the bold to the numbers. How would someone read those numbers? The thought is 0.082 minutes, but the 'dot' is not a decimal, so is that a ratio number? Thank you!

ETA: Of course, I put this in the wrong sub forum! Duh!