Andy's user avatar
Andy's user avatar
Andy's user avatar
Andy
  • Member for 8 years, 10 months
  • Last seen more than 7 years ago
46 votes

Why is the Sun's density less than the inner planets?

19 votes

Quantum Mechanics after the detection of Gravitational Waves

16 votes
Accepted

Why do our clocks not go out of sync with the day over a year?

14 votes

Ninth planet - what else could it be?

10 votes
Accepted

How much of a difference do good lenses make?

9 votes

Determine the moons of Jupiter through a telescope

8 votes

Is the Drake equation based on a logical fallacy?

8 votes
Accepted

How does 2015 RR245 compare to the other KBOs predicting "Planet 9"?

7 votes
Accepted

Was the use of silver on 'optical' telescope mirrors more common in the past? Why?

7 votes
Accepted

Is Pluto a "proto-planet"?

6 votes
Accepted

Can you see the stars when it is trickling?

6 votes

Dish antenna as parabolic mirror for OPTICAL telescope?

6 votes

How do I prevent or reduce shake when observing with binoculars?

5 votes
Accepted

Has NASA confirmed earth now has a second moon orbiting the planet?

5 votes
Accepted

What may be the period and speed of revolution of the star that is closes to galactic centre?

4 votes

Photon Paradox?

4 votes

What is the fifth moon-like object I saw around jupiter through my telescope?

4 votes

How can we map masses orbiting the outer Solar System by determining the orbits of planets and smaller objects?

3 votes

Calculating the Diameter of Jupiter through Image

3 votes

How much time does the ISS take to repeat its orbit?

3 votes

Data Analysis: Image Sharpening through Posterisation

3 votes
Accepted

What is a Galactic Eclipse?

2 votes

VLT interferometry vs E-ELT?

2 votes
Accepted

What exactly is this VLA radio image of Jupiter showing?

1 vote

Was time different before the great inflation?

1 vote

Having some weird issues with my tracking (Advanced VX)

1 vote

Solar Elevation Angles -- Anomaly?

1 vote
Accepted

How do I get focussed images with my T-adaptor and 6mm eyepeice?

1 vote

Are we center of universe?

1 vote
Accepted

Does this video catch an Eta Aquarid - Earth skimming meteor?