The discussion highlights that the visibility of constellations in the southwest sky varies based on geographic location and time of year. It emphasizes that the sky rotates every 24 hours, affecting which constellations are visible at any given moment. Observers in different parts of the world, such as Australia and Maine, will see different constellations when looking southwest. Additionally, the Earth's orbit around the Sun causes changes in visible constellations over time. Understanding these factors is crucial for accurately identifying constellations in the southwest sky.
#1
ICHO
4
0
what are the most recognized constellations located towards the southwest sky?
Also, not everyone sees the same exact sky - for someone in Australia, the sky looks a lot different to the southwest right now than it does for someone in Maine.
Partial solar eclipse from Twizel, South Isl., New Zealand ...
almost missed it due to cloud, didnt see max at 0710 NZST as it went back into cloud.
20250922, 0701NZST
Canon 6D II 70-200mm @200mm,
F4, 100th sec, 1600ISO
Makeshift solar filter made out of solar eclipse sunglasses
This thread is dedicated to the beauty and awesomeness of our Universe. If you feel like it, please share video clips and photos (or nice animations) of space and objects in space in this thread. Your posts, clips and photos may by all means include scientific information; that does not make it less beautiful to me (n.b. the posts must of course comply with the PF guidelines, i.e. regarding science, only mainstream science is allowed, fringe/pseudoscience is not allowed).
n.b. I start this...
Today at about 4:30 am I saw the conjunction of Venus and Jupiter, where they were about the width of the full moon, or one half degree apart. Did anyone else see it?
Edit: The moon is 2,200 miles in diameter and at a distance of 240,000 miles. Thereby it subtends an angle in radians of 2,200/240,000=.01 (approximately). With pi radians being 180 degrees, one radian is 57.3 degrees, so that .01 radians is about .50 degrees (angle subtended by the moon). (.57 to be more exact, but with...