Venus takes approximately 225 Earth days to complete one orbit around the Sun, while its slow axial rotation takes about 243 Earth days. This confusion often arises from mixing up the concepts of rotation (spinning on its axis) and revolution (orbiting the Sun). A synodic year for Venus, which is the time it takes to appear in the same position relative to Earth, is about 1.6 years. This longer synodic year occurs because Venus must travel additional distance to catch up with Earth after completing its orbit. Understanding these distinctions clarifies why Venus has a longer synodic year than Earth.
#1
sivaswetha
6
0
Why do venus take more number of days for one complete rotation around sun than Earth when the gravitational pull towards venus is higher than Earth ?
It doesn't. Venus takes approximately 225 Earth days to complete one orbit.
#4
sevenperforce
82
16
Maybe you're thinking about the rotation of Venus as opposed to the orbit of Venus? Venus spins on its axis very slowly, so it only makes a full axial rotation ever 243 Earth-days, but in this time period it has already made a full orbiting loop around the Sun and is about 8% of the way into the next loop.
Perhaps you're thinking of a synodic year. Venus takes about 1.6 years to complete a cycle as seen from Earth. After it completes one orbit, it still has to travel an extra distance to catch up to Earth, which has also moved. So from one apparition as an evening star to the next it takes 1.6 years.
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
3I/ATLAS, also known as C/2025 N1 (ATLAS) and formerly designated as A11pl3Z, is an iinterstellar comet. It was discovered by the Asteroid Terrestrial-impact Last Alert System (ATLAS) station at Río Hurtado, Chile on 1 July 2025.
Note: it was mentioned (as A11pl3Z) by DaveE in a new member's introductory thread.
https://www.physicsforums.com/threads/brian-cox-lead-me-here.1081670/post-7274146
https://earthsky.org/space/new-interstellar-object-candidate-heading-toward-the-sun-a11pl3z/
One...
are in a beautiful arrangement tonight as I have just observed on the walk back from the pub.
Does anyone have access to an image without city light pollution and better exposure control than my phone?
Edit: snapshot attached