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Edit (massive rewrite in response to comments) There's nothing "out there" that will tell you what day of the week it is. The concept of a week is determined by religion or culture but there's no objective reason why a week should have seven days. From 1793-1805 the French Republic had a calendar with a 10-day week. If you wanted to try to extrapolate our ...


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It is possible to determine the day of the year using the distance of the sun from the vernal equinox (you have to account for the equation of time etc, but it is possible). It is also possible to determine the year if your measurements are precise enough, using the current position of the vernal equinox (which changes due to precession). The ambiguity of ...


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M6, the Butterfly cluster, and M7, the Ptolemy cluster, are open clusters in the Scorpius constellation. They are interesting amateur target to observe. M4, a globular cluster, is a very interesting object too. It is one of the brightest globular clusters. M4 is in the Scorpius cluster too. I'm not sure about your location, but you should try observing ...


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We can't know this without knowing what the sky is like for your city. However, you can determine what the limiting magnitude is for your location, then you can set planetarium software to only display catalogued stars that are brighter than this limit. You can do this for naked eye objects, but you could also do this using your telescope to find the ...



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