eclipsing binary stars

Measuring Stellar Masses Using Eclipsing Binaries

March 12, 2023

The mass of a star helps us understand its properties such as internal pressure and gravitational pull. By observing and calculating the orbital size of eclipsing binaries, the mass of a star can be determined. […]

An illustration showing Kirchhoff working with his improved spectroscope.

Kirchhoff’s Laws and Spectroscopy

March 4, 2023

Out of the three laws, Kirchhoff’s third law is the most interesting. It states that the path for the photons is not all similar. It varies according to the wavelength. […]

An image of a spectra for dwarfs (luminosity class V).

The Spectrum of a Star: Absorption Lines

March 2, 2023

When we study the spectrum of a star, we see lots of divots, which are absorption lines. However, these are not the same for every celestial body. The pattern of absorption lines is differs for each. […]

An image of spectroscopy by prism.

Solar Spectrum: A Message from Atoms and Ions

March 2, 2023

When it comes to the spectrum of sunlight, interestingly, the pattern of lines provide us data regarding its temperature. These dark lines speak of atoms and molecules that are in their minimum energy state. […]

radio telescope

The Discovery of Radio Astronomy

February 26, 2023

Radio astronomy was discovered much later than optical astronomy. Karl Jansky was the first person to discover radio statics. With its longer wavelengths, radio astronomy makes it easier to build telescopes. […]

radio telescopes

What Are Optical and Radio Telescopes?

February 25, 2023

Radio and optical telescopes use glass mirrors with aluminum or silver coating. While the radio telescopes have mirrors with a parabolic surface, the optical telescopes refrain from using parabola. Instead, they use multiple mirrors to eliminate aberrations. […]

telescope focusing on the sky

Should Telescopes Use the Pinhole Camera Technique?

February 25, 2023

Pinhole cameras map images the way telescopes do. The technique works for some telescopes whereas others use a variation in the mechanism. Astronomers have been adapting the pinhole technique in their individual ways to build up telescopes. […]

An image of light from the sun hitting the planet Earth.

How Research Telescopes Help in Observing Photons

February 19, 2023

Research telescopes, in order to measure the flux of a source, use the system of units referred to as a magnitude scale. Considering the huge scales of calculations required in astronomy, this unit keeps the numbers manageable. […]

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