In the name of which planet the Greek is hidden. The names of the planets of the solar system: where do they come from? All-Russian Olympiad in Astronomy

Astronomy grade 10-11, school (first) stage
Run time - 120 min
Task 1 (quiz)
Tasks a, b and c - this is the game "The fourth is extra". What is superfluous in each case from the point of view of astronomy? Why?
A) Ursa Minor, Ursa Major, Orion, Cassiopeia.
b) Leo, Taurus, Capricorn, Dragon.
c) Black Sea, White Sea, East Sea, North Sea.
d) In the name of which planet is the Greek letter hidden? Write this letter.
e) Day Space Forces Russia is celebrated annually on October 4th. In honor of what event was this date chosen?
Task 2 (dictionary)
What do the words mean:
a) an astronomical unit;
b) galaxy;
c) a meteor
Task 3 (gallery)
What space bodies are shown in the photographs?

Picture 1

Figure 2

Figure 3
2964180311150Task 4
Find astronomical errors in the painting by Soviet artist Andrei Sokolov “The Moon. Traces of astronauts in the lunar dust.
Painting by Andrey Sokolov “Moon. Traces of astronauts in the lunar dust»
Task 5
The silvery orange adorned the night blue, And only a week passed - A slice remained from it.
Which heavenly body described in the riddle? Explain the changes that are happening to him. Make an explanatory drawing.
Task 6
Solve the crossword. What does the word received in the highlighted column mean?
1 2 3 4 5 6 7 8 9 10 An ancient Greek philosopher who suggested that the Earth is located in the center, around which seven celestial spheres revolve.
An instrument used to observe celestial bodies.
An ancient Greek astronomer who developed his own system of the world, which dominated science for 13 centuries.
Mathematician, first put forward the assumption that the Earth has the shape of a ball.
That around which all the planets revolve.
Earth satellite.
third planet solar system.
16th century Italian scholar named Giordano.
The great Polish astronomer who concluded that the Earth revolves around the Sun.
Outer space and everything that fills it.
Task 1
The Earth's globe has a diameter of 30 cm. At what height above the surface of the globe should the model of the ISS (International space station) if the real ISS flies at an altitude of 400 km above the Earth's surface? What size will the station model be if the ISS is 60 m long? The radius of the Earth is 6,400 km.
Task 2
It is known that a photon (a quantum, i.e. a particle of light) originating in the center of the Sun reaches its surface 30 million years after its birth. Rate average speed displacement of a photon from the center of the Sun to the surface, if it is known that the radius of the Sun is about 200 times less than the distance from the Sun to the Earth, and the photon overcomes the distance from the Sun's surface to the Earth in 500 seconds.
Task 3.
Flying past the Earth at a distance of 1 AU. The comet has a tail with an angular size of 0.5◦. Estimate the length of the comet's tail in kilometers.
One astronomical unit is 150 106 km
Task 4.
By mass, hydrogen in the universe is 75%, and helium 25%. What atoms in the Universe are more (hydrogen or helium) and how many times?

Tasks a, b and c - this is the game "The fourth is extra". What is superfluous in each case from the point of view of astronomy? Why?

a) Ursa Minor, Ursa Major, Orion, Cassiopeia.

Answer : Orion, since it rises and sets, the rest of the constellations do not set.

Or: Orion is visible in winter, other constellations are visible on any clear night.

Answer option "Orion, the rest are located close to polar star» is assessed as correct.

b) Leo, Taurus, Capricorn, Dragon.

Answer : The Dragon is a non-zodiacal constellation among the zodiac.

c) Black Sea, White Sea, East Sea, North Sea.

Answer : The East Sea is a lunar sea among earthly ones.

d) In the name of which planet is the Greek letter hidden? Write this letter.

Answer : Jupiter π

e) The Day of the Space Forces of Russia is celebrated annually on October 4th. In honor of what event was this date chosen?

Answer : On October 4, 1957, the first artificial satellite Earth.

Evaluation criteria : in paragraphs a, b, c for each correct answer - 1 point, each correct substantiation is 1 point; in paragraphs d, e for a complete answer - 2 points, partial - 1 point.

Max per task 10 points.

Task 2 (dictionary)

What do the words mean:

a) an astronomical unit;
b) galaxy;
c) a meteor

Answers :

a) astronomical unit - the average distance between the Earth and the Sun;
b) galaxy - a star system that unites billions of stars;
c) meteor - a flash in the atmosphere when a small solid particle invades it at high speed from space.

Evaluation criteria : By 1 point for the correct (at least in your own words) explanation of the meaning of each word.

Max per task 3 points.

Task 3 (gallery)

What space objects are shown in the photographs?

Answers :

Pluto
Milky Way
Sun.

Evaluation criteria : By 1 point for each correct answer.

Max per task 3 points.

Task 4

Suppose that today the Moon (for an observer living in Moscow) looks like it is shown in #1 . How will she look in a week? Specify the number of the correct drawing. Explain your choice.

Answer: in figure No. 1, the Moon is in phase between the new moon and the first quarter. The phases of the moon repeat in about a month. A week later, a quarter of this period will pass, and the Moon will be in a phase between the first quarter and the full moon. This is drawing number 3.

Evaluation criteria : for a correct answer without justification - 1 point; for the correct answer using the period of the change of lunar phases and the week as the fourth part of this period or with an explanatory picture - 3 points; for using the correct phase names - 1 point.

Max per task 4 points.

Task 5

In the poem "Son of the Century", the Soviet poet Igor Rink described the flight of Yuri Gagarin as follows:

You rush on a flying island,
Surrounding native land.
Having smelled colorful blankets,
Under you the continents slumber
Under you, like in a kaleidoscope,
Dance of colors, crimson and blue, -
Morning in Asia, evening in Europe,
Night in America, day in Russia...
What is wrong in these lines?

Answer : Gagarin's ship launched from the Baikonur Cosmodrome in Kazakhstan (Central Asia) at 9 am Moscow time and stayed in flight for less than two hours. Morning in Asia is already over. in Siberia and Far East It was daytime in Russia, morning came in Europe, night was ending in America. The words "morning in Asia" and "evening in Europe" are erroneous.

Evaluation criteria : for the correct answer with full justification - 4 points; for a correct answer with partial justification, without using actual data about Gagarin's flight - 3 points; for a partially correct answer with justification - 2 points; for a correct answer without justification - 1 point.

Max per task 4 points.

Task 6

Find astronomical errors in the painting by Soviet artist Andrei Sokolov “The Moon. Traces of astronauts in the lunar dust.

Answer : several astronomical errors were made in the picture.

First, the Earth is not shown in phase. Judging by the shadows from the rocks and astronauts, the Sun shines from the right side and is located quite high above the horizon. That's why Earth should also be illuminated from the top right and look like a sickle or half-disk.
Secondly, the apparent diameter of the Earth is greatly exaggerated. The Earth is about three and a half times the diameter of the Moon, so the Earth in the lunar sky should be only three and a half times the size of the Moon in the Earth's sky.
Thirdly, the Moon has no atmosphere, so inside the shadows, where the light of the Sun does not fall, it should be completely dark, no details can be seen.

Evaluation criteria : By 1 point for finding each of the errors; 1 point for the correct substantiation of the answer (at least one of the three points).

Max per task 4 points.

Task 7

Light from the Sun reaches the Earth in 500 seconds, light from the nearest star to the solar system, Proxima in the constellation Centaurus, takes 4.22 years. How far is Proxima from the Sun?

Answer : the distance to Proxima is as many times greater than the distance to the Sun, how many times 4.22 years is greater than 500 s. 4.22 x 365 x 24 x 60 x 60/500 = 266k times.

Evaluation criteria

For a rational decision (without unnecessary actions), the correct answer is - 4 points.

By 1 point removed for:

irrationality of the decision;
computational error;
exceeding the accuracy in the answer.

For a correct answer without a solution - 1 point.

Max per task 4 points.

Total for work 32 points.

The names of the planets of the solar system: where do they come from?

About the origin of the name of which planet humanity still does not know anything? The answer will surprise you...

Most of the cosmic bodies in the universe got their names in honor of the ancient Roman and ancient Greek deities. Modern names of the planets in the solar system are also associated with ancient mythological characters. And only one planet is an exception to this list: its name has nothing to do with the ancient gods. About what space object is it being talked about? Let's figure it out.

Planets of the solar system.

Science knows exactly about the existence of 8 planets of the solar system. Not so long ago, scientists expanded this list with the discovery of the ninth planet, the name of which has not yet been officially announced, so let's leave it alone for now. Neptune, Uranus, Saturn, Jupiter, due to their location and gigantic size, are combined into a single, external group. Mars, Earth, Venus and Mercury belong to the terrestrial inner group.

The location of the planets.

Until 2006, Pluto was considered a planet in the solar system, but careful exploration of outer space has changed the idea of this object. It has been classified as the largest body in the Kuiper Belt. Pluto was given the status dwarf planet. Known to mankind since 1930, it owes its name to Oxford schoolgirl Venice Burney. By voting astronomers, the choice fell on the option of an eleven-year-old girl who proposed to name the planet in honor of the Roman god - the patron of the underworld and death.

Pluto and its moon Charon.

Its existence became known back in the middle of the 19th century (1846), when the cosmic body was discovered by mathematical calculations by John Coach Adams and Urbain Jean Joseph Le Verrier. The name of the new planet in the solar system caused a discussion between astronomers: each of them wanted to perpetuate his last name in the name of the object. To end the dispute, they offered a compromise - the name of the god of the seas from ancient Roman mythology.

Neptune: The name of a planet in the solar system.

Initially, the planet had several names. Discovered in 1781, they decided to christen it after the discoverer W. Herschel. The scientist himself wanted to honor the British ruler George III with a similar honor, but astronomers were asked to continue the tradition of their ancestors and, like the 5 most ancient planets, give a “divine” name to the cosmic body. The main contender was the Greek god of the sky Uranus.

Uranus.

The existence of a giant planet was known even in the pre-Christian era. Choosing the name, the Romans decided to focus on the God of agriculture.

The giant planet Saturn.

The name of the Roman supreme god is imprinted in the name of the planet of the solar system - the largest of them. Like Saturn, Jupiter has been known for a very long time, because it was not difficult to see a giant in the sky.

Jupiter.

The reddish tint of the planet's surface is associated with bloodshed, which is why the god of war among the Romans gave the name to the space object.

"Red Planet" Mars.

Almost nothing is known about the name of our home planet. Surely we can say that its name has nothing to do with mythology. First mention modern name planets was recorded in 1400. It is associated with the Anglo-Saxon term for soil or ground - "Earth". But who called the Earth "earth" - there is no information.

Puzzle games

with the names of constellations, stars and bodies of the solar system.

Riddles with the names of the constellations.

*How many constellations are there in total? star map? (88)

* How many people are on the star map? (15)

* What representatives of the cat family are there on the star map? What about dog families? (Feline: Lion, Small Lion, Lynx. Canine: Big Dog, Small Dog, Hounds Dogs, Wolf, Chanterelle).

* What physical devices are there on the star chart? (Scales, Compass, Microscope, Pump, Octant, Sextant, Telescope, Clock)

* What birds can be found on the star map? (Raven, Dove, Swan, Eagle, Bird of Paradise, Toucan, Phoenix)

* How many fish are on the star chart? (Five - two in the constellation of Pisces, Southern Fish, Golden Fish, Flying Fish. Whale and Dolphin are not fish).

* Replacing one letter in the name of the constellation, turn the bird into a beast. (Eagle - donkey)

* Replacing one letter in the name of the constellation, turn the constellation into a synonym for the word "clown". (Hare - clown)

* Replacing one letter in the name of the constellation, turn the constellation into a Dostoevsky novel. (Libra - "Demons")

* Replacing one letter, turn the constellation into a star. (Lyra - Mira)

* Replacing one letter in the name of the constellation, turn a musical instrument into a deciduous tree. (Lyra - linden)

* Removing one letter from the name of the constellation, turn a wild animal into a pet. (Wolf - ox)

* After reading the name of the constellation from right to left, get a synonym for the word "character". (Raven - burrows)

* Reading the name of the constellation from right to left, get the name of the dense tissue. (Whale tick)

* Swapping the syllables in the name of the constellation, get the name of the coniferous tree. (Pump - pine)

* By swapping the letters in the name of the constellation, get an insect. (Feed - mosquito)

* Crossing out the name of the constellation two letters, get the name of another constellation. (Sagittarius - Taurus)

* Crossing out three letters from the name of the constellation, get the name of another constellation. (Dragon - Cancer, Scorpio - Orion)

* By adding one letter to the name of the constellation, get the name of the state. (Cancer - Iraq)

* By adding one letter to the name of a constellation, chase that constellation away. (Lynx - scat)

Riddles with the names of planets and satellites.

* In the name of which planet is the note hidden?

Draw it on the musical staff. (Earth)

* In the name of which planet is the letter of the Greek alphabet hidden?

Write this letter. (Jupiter)

* The older brother made a riddle to the younger one: he cut the name of one of the planets into separate letters and offered to re-fold this name. Thinking about the riddle, the younger brother dropped two letters on the floor, but, most surprisingly, he still got the name of the planet from the remaining letters! What planet did the older brother think of? The name of which planet was added by the youngest? (Saturn - Uranus)

* If you swap the letters of the name of one of the planets of the solar system, you get the name of the capital of the state that is part of the CIS. What is the name of the planet and the capital? What state is this? (Venus, Yerevan, Armenia)

* What planet is in the periodic table? (Uranus)

* What satellite is called the same as silk fabric?

(Atlas, moon of Saturn)

* Which satellite is named the same as the musical interval?

(Triton is a satellite of Neptune)

* Replacing one letter, turn the satellite into an optical device. (Moon - magnifying glass)

* Which planet's moons are named after characters in Shakespeare's plays?

(Satellites of Uranus - Titania, Oberon, Juliet, Desdemona, Ophelia, etc.)

* Replacing one letter, turn the planet into a month. (Mars - March)

* Replacing one letter, turn the planet into a state. (Uranus - Iran)

* Replacing one letter, turn the planet into a drink. (Mars - mors)

* Replacing one letter, turn the planet into a mountain range. (Uranus - Ural)

* By replacing one letter, turn the planet into an animal. (Mars - leopard)

Kochnev S.A.

Charades "Names of stars"

1. I am a prefix of a nobleman

In some western country;

And one more thing for me:

Above the earth above

Vast picture

(excluding the letter "O").

Do you recognize him?

2. There is a star in the constellation Virgo.

Put the letter "C" first,

And then, reading from the left,

Add a weapon to it.

(Cossacks him in the war

used on a horse).

3. My first syllable is everywhere,

Where someone is against something;

And you will find my second syllable -

God of war, I'm in that star.

4. And pepper,

and chewing gum forgotten leaf -

Initial part (choose an option);

Without last letter

hot spring -

And together - a supergiant star.

5. I am a supergiant, but everything is in me

Against all war.

I only want one

Find out after all - what?

6. The first syllable is very melodious,

He is like a violin (with a bow),

And the second - it is tasty, juicy -

Irny root. Do not know?

You will recognize that plant -

And you guess me.

7. The first syllable is one second;

A bitter vegetable is the second syllable;

With the letter "C" you recognize the star.

This is a Greek hero.

8. The first syllable is the second note;

The noise is lingering - the second syllable.

Well, in general, this is something

It's called a star.

9. I am a country without the letter "I"

In Asia Minor. I have a couple

Hussar decoration -

(It contains the second part of mine).

I am the brightest star.

10. My first syllable -

in the country of hummocks;

My second syllable is the game stage.

And if you are not weak in the game,

You guessed it, no questions.

11. I am a pretext, it will be preceded by me

What they are talking about;

The letter "C"; then a particle

Which has a charge.

I am in the constellation Canis Minor.

Well, do you understand my question?

12. You don't have to go far.

There is a star, tie it up

The sound involved in laughter

And the concept of surprise.

13. Yenisei I tributary

Right without a doubt;

Some work - my second syllable -

Any creation.

Composer and poet

They are created by capturing the light.

Answers: 1) Deneb, 2) Spica, 3) Antares, 4) Betelgeuse, 5) Mira,

6) Altair, 7) Pollux, 8) Regulus,

9) Sirius, 10) Arcturus, 11) Procyon,

12) Hadar, 13) Canopus.

Charades are quoted from the book by E.V.Soviet "Effective educational technologies"- Rostov-on-Don: Phoenix, 2007. - pp. 264-266

Puzzle games

with the names of constellations, stars and bodies of the solar system.

Riddles with the names of the constellations.

*How many constellations are on the star chart? (88)