4 ms·

"Polaris, a constellation of three stars more commonly known as the North Star...". Nope. It is a triple star system, something completely different.

bhouston 5y ago
The three body problem in real life?
fasteddie31003 5y ago
I believe a triple star system would be a subset of a constellation.
- e12e 5y ago
  No, apparently not: https://en.m.wikipedia.org/wiki/Constellation#Terminology https://en.m.wikipedia.org/wiki/Constellation#Terminology
  - mattkrause 5y ago
    The article is frustratingly vague about what constitutes a "proper" constellation. Does it just require being one of the 88 officially-enumerated ones, or is there more to it?
    - dylan604 5y ago
      There are official constellations, and then there are other shapes/patterns known as asterisms. This article will be able to explain way better than I could in a reply here. https://www.skyatnightmagazine.com/advice/constellations-asterisms-what-difference/ https://www.skyatnightmagazine.com/advice/constellations-ast...
      - mattkrause 5y ago
        Reporting back.... It seems like the important thing about the 88 officially-enumerated constellations is that they divide the sky up into standardized sectors. Asterisms are just the stars themselves. In other words, the asterism "The Big Dipper" is exactly seven stars. Since these stars are prominent, they--and some others--define the constellation "Ursa Major" but the constellation is actually the region of space around them. Thus, you could say that you can see (e.g.,) a comet "in" Ursa Major, but not "in" the Big Dipper.
- silverfrost 5y ago
  A constellation is a pattern of stars in the sky -- all of which were determined with the naked eye. Polaris is a triple star -- appearing to us as a single point of light.
everybodyknows 5y ago
Good catch. > appearing to the naked eye as a single point of light, Polaris is a triple star system https://en.m.wikipedia.org/wiki/Polaris https://en.m.wikipedia.org/wiki/Polaris

bhouston 5y ago

The three body problem in real life?

fasteddie31003 5y ago

I believe a triple star system would be a subset of a constellation.

e12e 5y ago
No, apparently not: https://en.m.wikipedia.org/wiki/Constellation#Terminology https://en.m.wikipedia.org/wiki/Constellation#Terminology
- mattkrause 5y ago
  The article is frustratingly vague about what constitutes a "proper" constellation. Does it just require being one of the 88 officially-enumerated ones, or is there more to it?
  - dylan604 5y ago
    There are official constellations, and then there are other shapes/patterns known as asterisms. This article will be able to explain way better than I could in a reply here. https://www.skyatnightmagazine.com/advice/constellations-asterisms-what-difference/ https://www.skyatnightmagazine.com/advice/constellations-ast...
    - mattkrause 5y ago
      Reporting back.... It seems like the important thing about the 88 officially-enumerated constellations is that they divide the sky up into standardized sectors. Asterisms are just the stars themselves. In other words, the asterism "The Big Dipper" is exactly seven stars. Since these stars are prominent, they--and some others--define the constellation "Ursa Major" but the constellation is actually the region of space around them. Thus, you could say that you can see (e.g.,) a comet "in" Ursa Major, but not "in" the Big Dipper.
silverfrost 5y ago
A constellation is a pattern of stars in the sky -- all of which were determined with the naked eye. Polaris is a triple star -- appearing to us as a single point of light.

everybodyknows 5y ago

Good catch. > appearing to the naked eye as a single point of light, Polaris is a triple star system https://en.m.wikipedia.org/wiki/Polaris https://en.m.wikipedia.org/wiki/Polaris