Monthly Milky Way Movement
Planning your Milky Way alignment: Today’s Milky Way Tetons image post required me to wait until September in order to align the MW with the Tetons. Although the core of the MW moves nightly from East to West at about 15º per hour, the seasonal movement adds another 30º per month —moving the MW almost 150 degrees to the West, going from April to September. You can forecast your alignment using apps like Photopills and SkyGuide
Here, I’ve taken 6 Milky Way images from the Sky Guide app, all captured on the same day of each month @ 2:00am (the time and date I ended up taking my Teton photo) and pasted them into one composite photo to illustrate that movement; and, I’ve added a real silhouette of the Teton Range on the West side to show the actual perspective from the Snake River Overlook .
Monthly Milky Way Movement
Planning your Milky Way alignment: Today’s Milky Way Tetons image post required me to wait until September in order to align the MW with the Tetons. Although the core of the MW moves nightly from East to West at about 15º per hour, the seasonal movement adds another 30º per month —moving the MW almost 150 degrees to the West, going from April to September. You can forecast your alignment using apps like Photopills and SkyGuide
Here, I’ve taken 6 Milky Way images from the Sky Guide app, all captured on the same day of each month @ 2:00am (the time and date I ended up taking my Teton photo) and pasted them into one composite photo to illustrate that movement; and, I’ve added a real silhouette of the Teton Range on the West side to show the actual perspective from the Snake River Overlook .