![]() The geometry of the galaxy brings up several important points.įirst, since our Solar System is not positioned in the Milky Way core, that means the core only forms a small part of the overall view from Earth. Practically, this means that the Milky Way will appear at different angles in our night sky depending on both the time of night and time of year. So what does that mean and why is it useful? It means that objects in our Solar System are rotating at almost a perpendicular angle compared to the angle of rotation of all the objects in the Milky Way as a whole (including our Solar System). The plane of our solar system is at an approximately 63 degree angle to the galactic plane. Our Solar System is located in one of the outer arms of the Milky Way, as shown below in this NASA illustration (click to enlarge). Because of its disk shape, the Milky Way appears as a faint milky-colored band, approximately 30 degrees wide, arching across the sky at just about all times (but visible only at night). This is the region you typically see featured in the dramatic astrophotography images that have become popular in recent years, as powerful low-ISO consumer DSLRs have made their way into consumers’ hands. ![]() The Milky Way is a disk-shaped structure, centered around a bar-shaped ‘core’ near the center. It’s January… the nights are long, the sky is crisp and dark– so why can’t you see the Milky Way very well, much less get those amazing shots you see online? This tutorial will help teach you everything you need to know about when and where to view our galactic home.
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