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33 votes
Accepted

Is there a word for an object orbiting a brown dwarf?

In the question IAU 2018 Exoplanet definition the IAU's definition of an exoplanet is given which includes objects around brown dwarfs. So the answer to your question is that a planetary-mass object ...
sno's user avatar
  • 1,455
11 votes
Accepted

Is REDSHIFT one word or two?

It’s a single word. Used to be double, but quickly became single. https://en.wiktionary.org/wiki/redshift https://en.wikipedia.org/wiki/Redshift https://www.merriam-webster.com/dictionary/redshift ...
Pierre Paquette's user avatar
7 votes

Why do we not call black holes black stars or dark stars?

The hypothetical object where gravity is so strong that even light cannot escape was indeed first called "dark star". It was first named as such by John Michell in the 1700s. See Wiki. Note ...
Allure's user avatar
  • 4,684
5 votes

Is there a word for an object orbiting a brown dwarf?

You could always call them satellites. A satellite is an object in space that orbits or circles around a larger entity. To avoid confusion with artificial satellites, the term natural satellite is ...
Blacklight MG's user avatar
2 votes

What are "non-Keplerian" orbits? What are some familiar examples in our solar system, and can some still be closed?

What exactly are "non-Keplerian" orbits? Let's first start with Keplerian orbits. A Keplerian orbit is the motion of one body relative to another body, and takes the form of an ellipse, ...
DialFrost's user avatar
  • 2,115
2 votes
Accepted

What are the differences between different types of flux density in radio astronomy?

For starters, let's say we observe a pulsar for a certain amount of time. We're interested in getting its integrated profile, which means we fold the data at the spin period of the pulsar and average ...
HDE 226868's user avatar
  • 37.1k
1 vote

Does "spectral type" and "stellar classification" refer to the same thing?

"Spectral Class" System of classification, including O, B, A, F, G, K, M. Stellar classification includes the Harvard system, and also other methods of classification including the Yerkes ...
Astrovis's user avatar
  • 733

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