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What is Borrelly made of?
Overview. With a shape resembling a chicken leg, the nucleus of comet 19P/Borrelly is approximately 5 miles (8 kilometers) long. The nucleus is inside a much larger cloud of gas and dust known as the “coma.”
Why do comets vaporize?
COMETS vaporize when their orbits take them close to the Sun. However, since they are composed partly of ice and other volatile compounds, they vaporize (turn directly to gas) when warmed in the vacuum of space by passing near the sun. It is this escaping gas that forms the comet’s luminous tail.
When was comet Encke last seen?
Comet Encke
| Discovery | |
|---|---|
| TJupiter | 3.026 |
| Earth MOID | 0.17 AU (25 million km) |
| Dimensions | 4.8 km |
| Last perihelion | 25 June 2020 10 March 2017 |
Which comet has the shortest orbital period?
Comet Encke
Comet Encke has the shortest orbital period of any known comet within our solar system. Encke last reached perihelion (closest approach to the sun) in 2015.
What is the morphology of Borrelia?
Members of the genus Borrelia are microaerophilic spirochetal bacteria characterized morphologically by coarse and irregularly shaped coils, with a cell wall and an inner cytoplasmic membrane, between which are multiple flagellae that provide a corkscrew-like motility.
What is Borrelia mayonii?
What is Borrelia mayonii? Borrelia mayonii are a type of bacteria recently found in North America that can cause Lyme disease. These bacteria are different from the three types of bacteria that cause most cases of Lyme disease worldwide. B. mayonii is the only species besides B. burgdorferi shown to cause Lyme disease in North America.
What is Borrelia burgdorferi sensu lato?
The term ‘ Borrelia burgdorferi sensu lato’ has been collectively used to refer to all Borrelia species and isolates in this group, which is transmitted by the hard ticks Ixodes and is associated with Lyme borreliosis (LB) or Lyme disease [2,6].
What is a Borrel and gezelligheid?
Borrels are quintessentially gezellig; and gezelligheid is, of course, quintessentially Dutch. Confused? Well there’s more: what exactly is an appropriate translation or definition for the Dutch word borrel? It’s much more than “drinks” and not as formal as a “function” or “reception”. According to our good ol’ friend Mr. Wikipedia, a borrel is: