The double telescope used for stargazing: our 6 secrets
Learn the use of dual -tube telescope to watch things that can be watched with the binocular telescope. Image source:
Double telescope for stargazing
You must have watched the starry sky for a long time! But if you want to prepare for the observation, you can’t use your eyes all the time. Before buying a telescope, try to buy a two -tube telescope. Perhaps a binocular telescope is lying somewhere in your home. Of course, if not, the double telescope is much cheaper than the normal telescope, and it is easy to carry to a darker place, even the backyard in the home, and the double telescope will let you see an unparalleled starry sky. Next is some small suggestions using binocular telescope.
1. The dual -tube telescope is easier to get started than a telescope
It is recommended that most readers who want to buy a telescope — using a two -tube telescope for one year or above are a better choice. Because most people using telescope for the first time, they found that they were confused and wanted to give up -there were two reasons: how to learn how to use complex devices and positioning the celestial body in the sky.
Primary astrologers often find that ordinary binocular telescope sold by most discount stores gives them the effect they want. After all, in astronomical observations, the telescope placing multiple multiples and concentration capabilities makes the stargazers look clearer. Even the medium concentration (such as the 7 × 50 -focus telescope) is enlarged and provided 7 times the details of the details of the naked eye.
Readers need to know what to watch. Many people use a constellation when they start watching stars.
2. Start with small size and easy to use telescope
Don’t buy a large binocular telescope at the beginning, unless you fix it on a tripod, it will keep your observation of the starry sky shake. For junior enthusiasts, a pair of 7 × 50 twin will be the best choice. Its field of vision is wide and stable, and the jitter is small. And it is easy to use during the day, such as bird watching. If the 7 × 50 double tube is still very large for you, or you want to buy a child, you can try the 7×35 specification.
3. First of all, watch the moon with a binocular telescope
When you start to stare at the starry sky, you want to observe the state of the moon carefully. If you want to see the deep space objects in our galaxy -or outside the galaxy -you will want to avoid the moon. But the moon itself is a perfect goal of a astronomer using a twin telescope. Tip: The most suitable time to observe the moon is at dusk. The light of the moon is not so bright, you will see more details.
When the moon just rises to stare at the moon, when it is a crescent moon in the western sky after the sunset, you will enjoy the beautiful scenery of the ground photos. The weird light of the moon darkening is the light reflected from the earth to the surface of the moon.
Moon and ground photos. Picture source: Photography Graig Disier Walk (
Greg Diesel Walck
Every month, when the moon experiences the phase of its rules, you can see the sunrise and sunset on the moon through the moon’s face. This is just the boundary between the light and darkness on the moon. This line on the day of the moon and the night of the night is the end line. This is the best place to see the long shadow of the moon’s characteristics in the sharp relief.
Look at the gray spots on the moon -named the dark part of the moon surface -early astronomers believed that it was the ocean. Of course, they are not oceans. They formed 3.5 billion years ago. When the asteroid -sized rock hit the moon as serious, the magma exuded from the cracks and drowned the impact basin. These magma plains finally formed the gray “ocean” we saw today.
The white highland is the older terrain, with thousands of meteorites formed in eternal. You can see some larger meteor pits with a binoculant. One of them, the Tuotian test satellite issued hundreds of miles of long white light over the nearby highlands. This is the material that was kicked during the hit of 2.5 million years ago.
4. Watch the planet with a double telescope
Planets are roamers. They are far away from fixed stars and walk around. You can locate the planets in the near future through the Earthsky Tonight webpage. For example, the dual -tube telescope can expand the vision of a planet near the moon, or the two planets that are close to each other in the twilight sky.
Mercury and Venus. These internal planets run around the sun within the earth’s orbit. Therefore, from the earth, Mercury and Venus have phase. Through the dual -tube telescope, you should be able to see that they are in the shape of crescent -shaped in front of the sun. Tips: Venus is very bright. Its dazzling light will flood the entire field of vision, trying to watch in the dusk instead of completely dark nights.
Mars. This red planet looks really red, and the binocular telescope will make its color more vivid. Mars will also move quickly in front of the star. When it passs by another bright star or planet, it is interesting to align the binocular telescope to its direction.
Jupiter. Start the real action now! Even for beginners, Jupiter is a good two -tube observation goal. Take the twin tube telescope stable, you will see four light spots nearby. These are Galileo satellites: Italian astronomer Galileo discovered four satellites discovered by the first telescope in history. If you can’t see all four satellites, it is because they pass through or behind the gas giant planet. Observe how their relative position changes.
Watch the big picture. Earthsky Facebook friend Karl Galovovir’s Jupiter satellite picture. Thank you, Carl! Jupiter’s four major satellites are called Muwei Yi, Muwei Er, Muwei San and Muwei Si. This is a telescope view, but you can also see one, two or more satellites through the binocular telescope.
Saturn. Although you need a small telescope to see the aura of Saturn, your binocular telescope will show the beautiful golden color of Saturn. You can even glimpse Saturn’s largest satellite Tusiu. In addition, the high -quality high -power dual -tube telescope installed on a tripod will tell you that Saturn is not round. These rings make it oval.
Uranus and Neptune. By positioning charts and binocular telescopes, you can find two most distant planets. Thanks to the methane in the atmosphere of Uranus, Uranus may look green. Once each year, the brightness of Uranus is almost not enough to glance with the naked eye … First of all, I found it with a double telescope. The distant Neptune always looks like a star, although its atmosphere is almost the same as the atmosphere of Uranus.
You may use the two -tube telescope to see other solar celestial bodies: the occasional comet (looks like a blurred light spots) and 12 asteroids are at the brightest time. Draw the Constantine map on the subsequent night to track the movement of a star -like small planet.
Explore our interior of our galaxy
The dual -tube telescope can introduce you to many members of the Milky Way’s hometown. Starting from the star cluster near the earth. The sky they covered is much larger than others, but the star group far ahead needs a astronomical telescope.
From every autumn to spring, we can find a star group like Beidou. Although this star group is small, it is as different as Beidou. Most people can only find six stars with the naked eye. The double telescope will display more, plus a exquisite star chain with Yan Shen to the other side. The Star Troupe looks very large and unique because it is close to us, about 400 light years from the earth. These stars were born at the same time and are still subject to gravity. They are very young and have existed in about 20 million years. Compared with our sun, our sun has 5 billion years.
The stars in the star group are formed by the same gas cloud. You can observe how the original state of the Supu Star Tuan can be observed by changing your sight to the famous Orion. Find the star where the sword of the Orion is located is below the star on the famous Orion belt. (Sea -one, VIII, VII, Sansu San from the east to the west to form the hunter’s belt. The sword under the hunter belt is composed of Sihexing (Orion θ1 and Orion θ2) and the Orion Great Nebula (M42). It is called a star in China). If the night is clear and bright, and the light pollution away from the city’s street lights, you can see that this sword is not composed of a star. The double tube telescope can display a stable glowing gas, just then, a star group was born. This is the hungyun of Orion. The corresponding season in the summer is the reef Nebula (M8), which is located in the horses.
In a star factory such as the Orion Big Nebula, we cannot really see these young stars itself. They are buried in the depths of the nebula and shirk them through ultraviolet radiation. After tens of thousands of years, these young, energy -filled stars will blow away their gaseous cocoons to form a new star group.
You can see more scenes along the galaxy, which implies the complexity of our hometown Galaxy. First of all, the Galaxy itself will shine; you can only find that there are still many stars that we can’t distinguish with the naked eye through the two -tube telescope … There are thousands of stars. Usually, when we observe, we will find the seemingly spotted black hole in the star light. These darkest gas and dust can see their outlines in the background of the stars. This is the characteristics of future stars and solar systems, just waiting for the new sun.
Galaxy is like an arched spanning a Josya tree. The picture comes from the Earthsky Facebook partner Manish Mamtani (browsed Manish on Facebook)
6. The scenery outside the galaxy
Let’s jump out of the galaxy and reach the last stop of the twin telescope trip. Throughout the autumn and winter, “the goddess tied to the rock” -The Fairy Galaxy 1 has been hung in the sky in the northern hemisphere. The center of the star pattern is an oval light spots. It is clearly distinguished with the naked eye in the place where the city light is away. The binocular telescope can better observe her.
Like our galaxy, she is a completely different galaxy shining in the magnificent interstellar space. From the light from the fairy galaxy, it takes more than 2 million years to illuminate us. Two smaller stars can be observed with a two -tube telescope in a dark and cloudy night. They are Magellan Clouds of the fairy galaxy. These small, surrounded and irregular galaxies will eventually be torn by the gravitational gravity of its mother galaxy.
Fairy landlines from photography Christ Levitan
From the surface of the barren moon to the glory of the neighboring galaxy, these scenes can be observed with a small handheld optical equipment: your twin telescope.
: Astronomical Volunteer Team
If there is related content infringement, please contact the author to delete after the work is released
Reprinted, please obtain authorization, and pay attention to maintaining integrity and indicating the source
What do you need to pay attention to using the double tube Wangyuan mirror to watch the star? The answer is here