Astronomy | Astrophysics Answers

Problem: 1. Consider a 2 M⊙ neutron star. The mass of a neutron is 1.67 × 10−24 g,
and 1 M⊙ = 2 × 1033 g.
(i) How many neutrons are in this neutron star? (1 point)

A. 6.0 × 1023 neutrons
B. 1.2 × 1023 neutrons
C. 1.2 × 1057 neutrons
D. 2.4 × 1057 neutrons
E. 6.7 × 109 neutrons

Altair in the constellation Cygnus is 16.4 LY distant with an apparent magnitude m = +0.8 and absolute magnitude M = +2.3. Verify its absolute magnitude using the inverse square law for light.

The star Pollux in the constellation Gemini has a parallax angle p = 0."093. Find its distance in light years.

Find the apparent magnitude of the star Vega if its absolute magnitude is +0.3 and its parallax angle p = 0."123.

A star with an apparent magnitude of +1.0 is located at a distance of 40 pc. What is its absolute magnitude M? What is its distance modulus?

1)What are blackholes and how they are formed?
2)What is the role of blackholes in our system?
3)What we actually experience when we go near them?
4)do sun revolves around something as earth,moon and all planets does?

age of earth in sec?

Which telescope, optical or X-ray, would have higher resolving power for the same
aperture? Calculate the magnitude of the faintest object that a 20 m optical telescope can
detect.

What is the pathway of origin of matter in universe?What are bosons and kindly tell the significance of Higg's boson.