The new vision number, it collects amateur enthusiasts to watch the stars together, is it very tall?

The new field number is the visible star brings a new helper

Introduction: After the main task of the "New Field Number" is completed, it becomes the first task to explore the Cobber with celestial bodies, and it will become part of a longer -range measurement project and drive out of the solar system.

——The new vision number team looks forward to your joining, let's measure the astrolabe together!

If you have a light bucket telescope and imaginger, then NASA hopes you to help you complete a record of a record.

A design concept of the new field of vision is rushed out of the solar system.

NASA/Johns Hopkins University Applied Physical Laboratory/Southwest Research Institute/Steve Grbal/Alex Parker

Near April, NASA intends to use the unique position of the new field of view -starting the point from the sun, and the longest distance ever, nearly 47 astronomical units -perform dialogue measurement for the baseline.

Since its launch on January 19, 2006, the new field of vision has been flying for more than 9 years, and its historic flight mission was performed on July 14, 2015 -flying over Pluto and Karon Star. Its initial task has ended, and the new vision number will be the first task to explore the Koyber belt discovered in 2014. From the "Sky" MU69 in 2014, to the New Year in 2019, it has flew 2200 miles (about 3541 kilometers). Now, the new vision number will become a member of the space ranging engineering to measure the distance of more distant objects.

What is a visual difference?

The working principle of the vision is to determine the visible position of an object in the sky from two different locations. Compared with a farther background source, there is no offset of any object. The longest traditional reference line is calculated with 2A.u.; The detector is aimed at a star near one side of the earth's orbit near the earth. After 6 months, align from the other side of the earth.

尽管星战中的韩·索罗曾在一个太空港小酒馆里说过，秒差距是测量距离的一种工具（距离度量衡），1秒差距=3.26光年，测量一颗恒星离2a.u How close to the baseline can generate a 1 arc secondary displacement in space.

There is no star that is close to the solar system that can show such a large displacement -the stars are too far away, and the distance between them and the earth is almost difficult to measure (it is impossible). Astronomer Frendrich Bessel completed the first successful vision measurement experiment in 1838. It measured the displacement of Swanza 61 314 milliseconds and positioned it at 10.4 light years. (There are about 1 light -year error with the currently recognized distance.)

Measurement goal

The new vision team starts the field of view of the field of vision, which will use the spacecraft from the spacecraft and the detector from the earth to calculate the distance between the two nearby stars.

A goal of each hemisphere: the southern hemisphere corresponds to the half -person horses, and the northern hemisphere corresponds to Wolf 359. Walf 359, which is 13.5, is located in a relatively sparse area in Leo. It is about 7.9 light years from the earth, near the zodiac surface. We are more familiar with the 4.2 light year from the Malaysia to the solar system. It is the nearest star to the solar system. It is located in the stars. Both stars and the flying path of the new field of vision have become a certain angle -the new field of vision is moving towards Sagittarius.

*Figure: Flying trajectory of the new field of vision. NASA

"The trajectory of the new field of vision determines the vision," said Todd Raul (National Optical Observatory). "Stelings have their running trajectory, even if they are close, they will form related tiny viaders. It will be affected by the comprehensiveness of the large baseline. "

The target star that can be observed from the earth during April should also be listed as a consideration object. One of the candidates, the UV star of the whale. Due to the seasonal reasons, the star with excellent visibility in the northern autumn was excluded.

The detection camera of the remote reconnaissance imaging (Lorri) will imagine the star domain of the two stars from a favorable position located in the new field of view. Lorri is very close to the 8 -inch pores reflected telescope of the heavenly foundation.

*Figure engineers install Lorri on the new field of vision. NASA

Although the results of the project may not have any substantial scientific breakthroughs, this experiment will prove the feasibility of this long base line visional measurement. And unlike the baseline measurement, the foundation line takes 6 months, and the measurement of the visual processing items will be performed at the same time. In this way, the two target stars can ignore the minimal operation in the background of the starry sky.

The experiment also proves how the spacecraft flying out of the solar system can use nearby stars to displace in space in space.

*Figure target star domain: Wolf 359 (Liangxing near the center), the green circle is the best position of the new field of view to observe the stars. William Neil/Alabama University/Sara Observatory

The best time to observe the target star is from April 22-23. The new field of vision and vision project provides all detection details, including time and star search. Observation time is applicable to North America (Wolf 359), Australia and South America (Bishe Menya).

*Figure target star field: Big half -man (bright star near the center), the green circle is the best position of the new vision number observing star. William Neil/Alabama University/Sara Observatory

This is not the first time that amateur astronomers have supported the new vision team.In 2017, the observation expedition measured a star hidden in the "Sky".The data reveals the double -petal structure of the Corieber with an astronomical body, which was confirmed after the new vision number flew over the area in 2019."The fuel left in the new field of vision may only be enough to explore the last celestial body (also the third goal of its research). From this summer, it will take almost 2-3 years."It was revealed that "'Sky" was also discovered in four years. "

Be sure to participate in this historic observation, the new vision number can fly out of the solar system!

By: David Dickinson

Fy: ishuca · Liu

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