Review the answers to the question bank in the 2009 Beijing junior high school astronomy knowledge contest.

In 2009, primary and middle school students in Beijing reviewed astronomical knowledge competition.

Junior high school part

105, the diameter of the sun is the diameter of the earth _ _

A, 330,000 times b, 109 times c,10.3 million times d, 108 times.

106, China recognized the earliest record of Halley's comet in which of the following years (BC)?

A, 240 B, 6 13 C, 1057 D, none.

107, a star with less mass than the sun will eventually evolve into

A, white dwarf B, neutron star C, pulsar D, black hole

108, the diameter of Yinhe silver plate is about

A, 65438+ million light years b, 65000 light years c, 65438+ million light years d, 1 million light years.

In 109 and 2000, where will the rotation axis of the earth point?

A, Sun B, Jupiter C, Polaris D, Vega E, Antares

1 10, what is the relationship among galaxy clusters, galaxies and globular clusters?

Globular clusters belong to galaxies, and galaxies belong to clusters of galaxies.

B globular clusters belong to galaxy clusters, but not to galaxies.

C galaxies belong to both clusters and globular clusters.

D. Galaxies belong to globular clusters, but not to clusters of galaxies.

1 1 1. Why is the annual meteor shower around 1 1 month 17 called "Leonid meteor shower"?

Because the sun was in Leo at that time

B, because the direction of the meteor seems to be shooting in all directions from the direction of Leo.

C, because the debris dust that causes meteors comes from Leo.

D, because the mother comet that caused the meteor shower came from Leo.

E, because meteors seem to be flying towards Leo.

1 12. If you/you have time pressure and need to observe several targets in one night, where should you/you start observing first?

A, Target B is in the western sky, Target C is near Polaris, and Target C is near the zenith.

D, target E in the eastern sky, target near the galactic center.

1 13, which of the following observations needs to be carried out in space?

A, visible light observation B, near infrared observation C, neutrino observation D, ultraviolet observation E, radio wave observation

1 14. How long does it take for the sun to rotate once?

A, about ten hours b, about a day c, about a month d, about a year e, about eleven years.

What do we think is the current age of the universe?

A, 4.6 billion years b,14 billion years c, 50 billion years d, 140 billion years e, 500 billion years.

1 16. Which two stars does our galaxy pass between in the night sky?

A, Polaris and Kaiyang B, Betelgeuse and Sirius C, Horned Star and Rocking Star

Vega and Altair, Bishop and Betelgeuse

1 17. What is the relationship between large magellanic cloud and the Milky Way?

A, Earth and Moon B, Earth and Mars C, Earth and Comet

D, Earth and Asteroids E, Objects in the Earth and Cooper Belt

1 18, in the winter night sky, there are three stars forming a triangle, which is called the winter triangle.

These three stars are:

A, Polaris, Weaver Girl, Betelgeuse B, Sirius, Nanhesan and Betelgeuse

C, Beihe II, Nanhe II, Betelgeuse D, Weaver Girl, Cowherd and Tianjin IV

Sirius, Cowherd and Betelgeuse

1 19. Which of the following descriptions about large magellanic cloud is incorrect?

First, it belongs to irregular galaxies.

B in Beijing, you can occasionally see it on the southern horizon.

C. A supernova 1987A broke out in this galaxy.

D, a galaxy visible to the naked eye, does not need a telescope.

E, there are no obvious bright stars in this galaxy.

120, what are the properties of stars that determine the evolution speed of stars through various stages?

A, size b, mass c, composition d, position e and environment

12 1. What kind of galaxy does the Milky Way belong to? barred spiral galaxy

A, elliptical galaxy b, spiral galaxy c, active galaxy d, collision galaxy e, irregular galaxy.

122 and pulsars discovered in 1970s are considered as:

A, high-speed rotating neutron star B, accretion black hole C, high-density white dwarf.

D, * * * A nearly binary star with the same atmosphere, and E a low-mass brown dwarf.

123. When the star is in the main sequence, what elements are produced by the core nuclear reaction?

A, hydrogen b, helium c, carbon d, oxygen e, iron

124, usually comets have two tails, one of which is blue, because:

A, composed of dust, becomes dust tail B, and composed of charged ions, becomes ion tail.

C, composed of atoms, called atomic tail D, composed of dust, but called plasma tail E, composed of molecules, called molecular tail.

125, what kind of celestial body will our sun become in the end?

A, supernova remnant+neutron star B, supernova remnant+black hole

C, supernova remnant D, planetary nebula+white dwarf E, arched astrolabe+jet

126 and 1054, the "China Supernova" which broke out in the Song Dynasty was formed today.

A, Orion Nebula B, Crab Nebula C, Lagoon Nebula D, North America Nebula E and China Nebula.

127, the stars in the sky are red and blue. Which of the following statements must be true?

Comparison between red star and blue star;

A, the surface temperature is low b, the mass is high c, the volume is small d, the heavy elements are high e, and the age is young.

128, the first binary system that was discovered and determined to be intertwined with two stars in history is:

A, Vega B, Kaiyang Binary Star C, Orion α D, Taurus α E, Gemini α

129, which of the following celestial phenomena can be observed directly with the naked eye without observation equipment?

A, sunspot B, ring nebula C, Jupiter's four satellites D, Perseid meteor shower E, tetrad in Orion nebula.

130. What kind of "year" does China use in the lunar calendar?

A, sidereal year B, node year C, ecliptic year D, tropic year E, perigee year

13 1. If the moon is bent today, where is the moon at 6 o'clock in the evening?

A, Eastern Horizon B, Zhongtian C, Western Horizon D, Horizon E, the conditions are insufficient, and it is impossible to judge.

Sirius rises in the east tonight 132+0 1. When will Sirius rise tomorrow night?

A, 10: 10pm B,1:04pmc, 10:56pm D, 1 1:50pm E, at the same time.

133, which of the following stars is a visual binary star?

A, Kaiyang B, Sirius C, arcturus D, Xuanyuan 14 E, Betelgeuse

134. Where can I see the constellations of the whole sky on the earth?

A, Arctic region B, 66.5 degrees north latitude C, equatorial region D, 66.5 degrees south latitude E, Antarctic region

135, a person with normal vision, looking at the stars on a clear night without light damage,

The brightness of the darkest star that can be directly seen by the naked eye is about:

A, Grade 24 B, 15 C, Grade 9 D, Grade 6 E, Grade 2

136, binoculars will mark their own optical characteristics, such as 6×30, 7×50, 10× 50.

Take 6×30 as an example, which means

A, aperture 6 mm, magnification 30 times. B, the aperture is 6 mm and the viewing angle is 30 degrees.

C, aperture 6 mm, brightness 30/6. D, aperture 30 mm, viewing angle 6 degrees.

E, aperture 30 mm, magnification 6 times.

137. In recent years, astronomers have discovered another area where many small celestial bodies gather at the outer edge of Neptune's orbit. These small celestial bodies revolve around the sun, and Pluto may be only the largest of these small celestial bodies. This area is called:

Kuiper belt b main asteroid belt

C, Oort Cloud D, Troy Group) E, high-speed cloud.

138. From the earth, which constellation is the direction of the center of the Milky Way?

A, Pegasus B, Sagittarius C, Lyra D, Aquarius E, Aries

139. Most amateur astronomical telescopes are between 60mm and 300mm. What are the advantages of using a 300 mm telescope for astronomical observation compared with a 60 mm telescope? (junior high school)

A, compare the details of observable celestial bodies.

B, it is possible to observe dark celestial bodies, but the image resolution is similar.

C. Compared with the observation of dark celestial bodies, the image resolution is also improved a lot.

The resolution, concentration and magnification have been greatly improved. E, there is no obvious difference.

140, the mass of someone on the earth is 60 kilograms. Suppose he goes to the moon, his mass is about

a，60kg b， 10kg c，360kg

14 1. Now the famous "Crab Nebula" in the sky is related to a "Guest Star" event recorded in ancient China.

A, Southern and Northern Dynasties B, Northern Song Dynasty C, Yuan Dynasty

142, the theory of predicting the possible existence of black holes in the universe is

A, Cartesian geometry B, special relativity C, general relativity

143, the best time to observe Venus at dusk is when Venus is around.

A, according to the east distance b, east distance c, west distance

144, for telescopes used for astronomical observation, the most important performance indicators are

A, magnification b, aperture c, focal length.

145, near-earth asteroids, through the earth's orbit is called.

A, Amor type B, Apollo type C, Armstrong type D and arani type.

146, when is the inner planet most suitable for observation? A. East distance B. Shanghe C. Chong

147, people's daily time is a, sidereal time, b, apparent solar time, c, flat solar time.

148, the Tropic of Cancer is among the 24 solar terms.

A, vernal equinox B, autumnal equinox C, summer solstice D and winter solstice D.

149, the annual apparent motion of the sun is a reflection of _ _ _ _.

A, revolution of the earth b, rotation of the earth c, revolution of the sun

150, the geographical latitude of a place has a _ _ relationship with the horizon height of Polaris.

A is equal, b is greater than the latter, c is less than the latter, and d is uncertain.

15 1. Which celestial body did the Egyptians use to make a 365-day calendar?

A. the sun, the moon and Sirius

152 and M 1 crab nebula are located in which constellation?

A. Cancer B. Taurus C. Scorpio

153, the annular eclipse must occur in a month of the Gregorian calendar.

A, 1 day b,1day c, maybe any day d, annular eclipse is impossible.

154, the range of celestial declination that can be observed in a year at 20 degrees north latitude is

A, +20 to +90 b, -20 to +90 c and -70 to +90 d are all wrong.

155, March 2 1, 6: 00 UTC, and the local sidereal time of the 90 east longitude line is roughly () hours.

a、0 B、6 C、 12 D、 18

156, which is impossible to observe on earth.

A, partial solar eclipse B, annular solar eclipse C, partial lunar eclipse D, annular solar eclipse

157, the astronomical unit is defined as.

A, the distance between celestial bodies at an angle of one second with respect to the sun and the earth b, the distance traveled by light in one year.

C, the average distance d from the earth to the sun, and the time it takes for light to travel from the sun to the earth.

158, which of the following constellations can be seen in autumn night in Beijing?

A Cassiopeia, Perseus, Pegasus B, Orion, Leo, Swordfish C, Aquarius, Gemini and Ursa minor.

159, if there is an asteroid in the earth's orbit that does not rotate, the period of alternation of day and night somewhere above it is in line with the earth's time unit.

A, there is no alternation of day and night b, one day c, one month d, one year

160, 13000 years later, the vernal equinox will be located in the constellation ().

A, maid b, lion c, Aries d, bear

16 1, the angular diameter of Mars when it is closest to the earth is 24 ",and the diameter of the image of Mars taken with a refracting telescope of f = 19.5m is () mm. ..

a、0.24 B、2.27 C、8.68 D、 13.6 1

162, the imaginary residents on the moon saw the earth at the full moon (junior high school).

A, New Moon B, Upper Chord C, Hope D, Lower Chord

163, about the quality of black holes, the following statement is correct (junior high school).

A, it must be infinite B, not necessarily infinite, but at least it should be close to infinite.

C, not necessarily infinite, may have a rather small mass, about 10 solar mass or more.

164, in the zodiac, the sun stays in () for the shortest time? (junior high school)

A, Sagittarius B, Gemini C, Aries D, Virgo

165, the farthest from the Milky Way in the following constellations is (junior high school)

A, cygnus b, shepherd c, cassiopeia d, Perseus.

166, a light year is about () astronomical units. (junior high school)

A, 3.3 B, 38 C, 63,000 d,1.500 million

167. Compared with the flying height of ordinary civil aircraft, the meteor we saw at night (junior high school).

A, lower B, almost C, higher about 10 times D, higher at least 100 times.

168, the following constellations are adjacent to Beimian (junior high school)

A, Five Immortals B, Centauri C, Ursa Major D, Back Seat

169, "messier objects Marathon" refers to observing almost all celestial bodies in messier as much as possible in one night with naked eyes and binoculars. The best time for this activity is around the new moon () every year. (junior high school)

A, March, April, B, July, August, C, 1 1 month,1February, D, the observation conditions are similar every month.

170. The following description of meteors and meteor showers is incorrect.

A. The hourly zenith flow near the meteor shower may be 1 to 2.

B, Leo meteoroids may hit the surface of the moon, producing an observable flash on the ground.

C. When you go out during the Leonid meteor shower, the probability of being hit by a meteorite is similar to that at other times.

When you see a meteor breaking in the air, you can often hear the sound of a meteor.

17 1. The following statement about the solar system is true ()

1. The solar system is a celestial system consisting of the sun, nine planets, their satellites and asteroids.

The position of the solar system on the galactic plane is fixed. C, nine planets are not all solid planets.

Earthlike planets include Venus, Mercury and Mars.

172, solar energy structure from outside to inside is ()

Solar Nucleus, Mesosphere, Troposphere, Photosphere, chromosphere, Corona. B corona, troposphere, mesosphere, chromosphere, photosphere and solar nucleus.

C Corona, chromosphere, Photosphere, Troposphere, Mesosphere and Solar Core. Corona, photosphere, chromosphere, troposphere, mesosphere and solar core.

173, the following statement about the sun is wrong ()

Sunspots are the activities of the sun on the surface of the photosphere. Flares appear in chromosphere.

C, the sun's visual circle we usually see is chromosphere D, and the energy reaction inside the sun is nuclear fusion reaction.

174. The following astronomical phenomena can be seen through Mercury () A, B, C, D and mask.

175, the following statement about Mars is incorrect ()

Mars has two irregular planets. B, the surface topography of the northern and southern hemispheres of Mars is very different.

C. Mars is a good opportunity for observation during the solar eclipse. D. There is an atmosphere similar to Earth on Mars.

176, Saturn's rings have () A, B, C, D and 5.

177, the earliest meteor shower record in the world is about ()

A, Leonid meteor shower B, Gemini meteor shower C, Lyra meteor shower D and Orion meteor shower

178. In Beijing, you can see the moon (junior high school) in June 2006 165438+ 10/8 (September 28th of the lunar calendar).

A. in the east at night. In the west at night. In the east at dawn

179, according to modern astronomy, the Big Bang was about () years ago.

A. 2.5 million years B.1300 million years C.50 million years D.200 billion years

180, Zhang Heng is the representative of which of the following theories?

A. Gaitian said B. Heliocentrism C. Huntington said D. Michelle Ye said.

18 1. The calendar compiled by Guo Shoujing, a famous astronomer in Yuan Dynasty in China, is A. Daming Calendar B. Dayan Calendar C. Chronological Calendar D. julian calendar.

182, according to the chronological method of cadres and branches, the year 2008 is A. Guiwei B. Wuzi C. Wu Jia D. Xinhai.

183, which of the following does not belong to the 28 th hotel? A. wall B. Zhang C. stomach D.

184, astronomical unit is defined as ().

(a) The distance between a celestial body with an angle of one second and the sun and the earth; (b) The distance that light travels in a year.

(c) The average distance from the earth to the sun (d) The time it takes for light to travel from the sun to the earth.

185, a light year is about () astronomical units. (a) 3.3 (b) 38 (c) 63,000 (d) 65,438+500 million (e) I don't know.

186. Recently, some media claimed that "five-star renju" appeared in late March 2004. Actually, this refers to five.

Planetary phenomenon ().

(a) Seen from the ground, the maximum angular distance between them does not exceed 60 degrees.

(b) Appear above the horizon of the observation site at the same time.

(c) Seen from the direction perpendicular to the ecliptic plane outside the solar system, their projections on the ecliptic plane are roughly in a straight line.

(d) Seen from the sun, the maximum angular distance between them is no more than 60 degrees (e) I don't know.

187, the hive cluster (ghost cluster) is located in ().

(a) Cancer (b) Virgo (c) Gemini (d) Taurus (e) I don't know.

188. Seen from the earth, which of the following celestial bodies has the shortest angular distance on the celestial sphere? ( )

(A) M44 and M67 (B) M3 1 and m1(c) m33 and M34 (D) M4 1 and M42 (E) don't know.

189, which two adjacent constellations does the Milky Way pass through?

(a) Five Immortals and Beiguan (b) Ursa major and Ursa minor (c) Gemini and Orion (d) Aquarius and Aquarius (e) I don't know.

190, most of the brightness of the Big Dipper is about ().

(a) About 0 (b) About 2 (c) About 3 (d) About 4 and above (e) I don't know.

19 1, around1October 8 10 every year, there is a great possibility of a meteor shower.

(a) Orion (b) Gemini (c) Draco (d) Perseus (e) I don't know.

192, China's star name "Nanhesan" corresponds to the western star name ().

(a) Gemini alpha (b) Gemini beta (c) Canis major alpha (d) Canis minor alpha (e) I don't know.

193. On the fifteenth day of the next lunar calendar, when the moon sets, it is facing the moon, and Tycho crater is on the moon ().

(a) upper left corner (b) upper right corner (c) lower left corner (d) lower right corner (e) I don't know.

194, the time of the next total solar eclipse in China is ().

March 2006 (March 2007 (August 2008 (July 2009 (e)) I don't know.

195. On which of the following days, when observation conditions permit, there are no visible sunspots on the surface of the sun ().

(a)2003128 October (b)2003125 October 165438.

(c) 65438+February 65438+May 2004 (d)65438+20051October 65438+May (e) I don't know.

196, at 0: 00 Beijing time on March 20, 2006, the constellation near the zenith of Beijing observer was ().

(a) Ursa major (b) Capricorn (c) Orion (d) Cygnus (e) I don't know.

197 generally speaking, the direction of the tail and the direction of the comet's movement ().

(a) consistent (b) different by about 90 degrees (c) opposite (d) irrelevant (e) I don't know.

198, the ancient book says, "bucket handle refers to the east, and the world is spring; Bucket handle guide, the world is summer; Bucket handle refers to the west, and the world is autumn; Bucket handle refers to the north, and it is winter in the world. " . This refers to the astronomical phenomena seen every day.

(a) at night, (b) at midnight, (c) in the morning, (d) at any time, (e) I don't know.

199, the distance between two celestial bodies on the celestial sphere is measured by the following formula:

A. Light years B. parsec C. Astronomical units D. Angular units

200, the moon has no atmosphere, the main reason is:

A. Too small mass and volume B. Too high temperature makes the atmosphere evaporate C. Too close to the sun D. There is no water.

20 1, the time and orientation of the first quarter moon observation is:

A. at night, the western sky B. at midnight, the eastern sky C. at midnight, the western sky D. at midnight, the eastern sky

202, the sun around the center of gravity of the Milky Way, the time needed is:

A. 1 billion years B. 1 billion years C.550 billion years D.250 billion years

In ancient times, the measurement of stars was divided into six grades. Modern astronomical precision instruments measure that the first-class star is brighter than the sixth-class star;

A.5 times B. 10 times C. 100 times D. 1000 times.

204. When should we observe the starry sky seen at 22 o'clock today and see the same starry sky distribution in that place one month later?

A.22 at point b 2 1 at point c 20 at point d 19.

After we sent astronauts to the moon, it was very beautiful to see that the earth was almost completely illuminated by sunlight. At this time, the moon is

A. new moon B. hope C. first quarter moon D. second quarter moon

206. Astronauts are in microgravity in space. Astronauts weigh 60 kilograms on earth, and their mass in space is:

A.60 kg B. Almost zero C. 0 kg D. 30 kg

207. Where the longitude is the same, which of the following statements is correct?

A. the height of the sun is the same at noon. B. the length of day and night is the same. C. the seasons are the same. D. this place is still the same

208, the diameter of the moon from the earth is 0.5 degrees, so what is the apparent diameter of the sun from the earth?

A. 10 degree B. 5 degree C. 1 degree D. 0.5 degree

209. How many constellations does the sun pass on the ecliptic every year? 12 C. 28 D. 88

2 10. Among the following celestial bodies, those that do not belong to the solar system are: A. comet hale-bopp B. Ceres C. Sirius D. Ghost satellite.

2 1 1. Which of the following descriptions about planetary motion is incorrect?

A. the planets revolve around the sun from west to east. B.the planet rotates from west to east.

C. the planets all revolve around the sun in elliptical orbits. D. the planets all revolve around the sun on an approximate plane.

2 12, the following phenomena are not caused by the earth's rotation:

A. The sun rises in the east and sets in the west. The Big Dipper revolves around the North Star.

C. Mars moves from east to west relative to the star background D, and Orion moves from the southeast sky to the southwest sky.

2 13, I saw a star in the northern sky at some time. This star is most unlikely to be:

A. Star B Planet C Comet D Meteor

2 14, the following astronomical events, the biggest impact on the earth is:

A. 19 10, the tail of halley's comet swept across the earth. B. 1833 1 12 In October, hundreds of thousands of meteors poured down like fireworks.

C.1In August, 972, a solar flare broke out. D.1In August, 982, nine planets converged on the side of the sun, forming nine planets Julian.

The crescent moon looks like a sickle, because

A.what we basically see is the dark side of the moon. The shadow of the earth falls on a part of the moon.

C. the shadow of the sun falls on a part of the moon. D the apparent distance between the moon and the sun in the sky is relatively large.

2 16, what is true about planetary nebulae?

A.this is the residue of a supernova explosion. It usually has a white dwarf at its core.

C the famous Orion nebula is a planetary nebula and the crab nebula is a planetary nebula.

How many times brighter are stars such as 2 17 and 1 than stars such as 6?

A. 10 B. 152 C. 100 D. 106.

2 18 At noon local time in the following places 12, observe the shadow of flagpoles with the same length standing on the ground in the sun, and where the shadow is the longest.

A. Guangzhou B. Hainan Island C. Beijing D. Mohe

2 19. If the moon tonight is the first quarter moon, where is the moon at 6 o'clock in the evening?

A. the eastern horizon B. crossing the sky C. the western horizon D. under the horizon

220, which celestial body is we can't see through the transit in the middle of the night?

A.jupiter B.Vega C.Venus D.Ceres

Astronomers believe that there is a supermassive black hole in the center of quasars. What is the following statement about the quality of black holes?

A. it must be infinite. B. it is not necessarily infinite, but at least it should be close to infinity.

C. it is not necessarily infinite, but the mass may be quite small. It has about 10 solar mass or

(The following is a new topic)

1, the total solar eclipse in 2009 is the best observation condition for the following cities.

(a) Nanjing (b) Beijing (c) Hangzhou (d) Xiamen

2. 193 1 year, Karl Jansky detected a radio signal from outside the earth with his radio telescope, and this signal arrived at () 4 minutes every day, indicating that it did not come from the sun, but from an extraterrestrial body.

A, advance B, postpone C, neither advance nor postpone

3. Which of the following is the abbreviation of Orion?

(A)Leo (B)Sco (C)Ori (D)Lyr

4. On May 2, 2007, the inauguration ceremony of the new telescope of Lijiang Observatory of China Academy of Sciences was held in Lijiang. The aperture of this new telescope is ().

(a) 2.16m (b) 2.4m (c) 4m (d) 40m

5. Du Fu's poem "It is difficult for friends to meet each other like the stars in the morning and evening", in which "Shen" is located in Orion and "Shang" is located in ().

(a) Scorpio (b) Canis minor (c) Carina (d) Aquarius.

When a planet orbits a star, the closer it is to the star, the faster it is.

7, the mother comet of the famous Orion meteor shower is _ _ _ _ Harley _ _.

On the New Year's Eve of1801,Piacci discovered the first asteroid, which was later called ceres. If there was a naming rule for the tentative number of asteroids at that time, it should be called _ _ _1801aa _ _ _.

30-3. In which constellation is the famous spiral galaxy M5 1 located? Dog dog

9. When will transit of venus happen next time? June 6, 1965 438+02

10, the first asteroid discovered by China people was named? "China"

11.What are the best observation conditions for the total solar eclipse in cities below 2009?

(a) Nanjing (b) Beijing (c) Hangzhou (d) Xiamen

12. Which of the following statements is correct under the same longitude?

A. the height of the sun is the same at noon. B. the length of day and night is the same. C. the seasons are the same. D. this place is still the same