Brendubz

Hi, I'm new to this but a good friend of mine got me star gazing. Have noticed this evening when viewing "the big dipper" that it didn't all seem to line up correctly. I have immaculate clear skies and can clearly make out the bulk of the constellation. However, Delta Ursae Maoris isn't appearing. I've really tried to focus In and best I can get is a "twinkle". Wondering if anyone else having same experience and confused as to why I can't see it! Look forward to some expertise!