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📷 | Photographed by members of the Niigata Astronomical Study Group Photo exhibition of fantastic starry sky and landscape [Niigata]


写真 

新潟天文研究会の会員が撮影 幻想的な星空や風景映し出した写真展【新潟】

 
If you write the contents roughly
新潟市西蒲区の上堰潟公園で撮影した夫婦桜や双子座流星群など幻想的な写真の数々を見ることが出来ます。
 

アマチュア写真家が撮影した天体写真の作品展が新潟市で開かれています。 新潟市中央区で開かれている天体… → Continue reading

 Niigata General Television

"NST Niigata General Television" (Fuji TV affiliate) news account. We will send you the latest news about Niigata Prefecture.


Wikipedia related words

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上堰潟

上堰潟(うわせきがた)とは、NiigataNishikan Ward松野尾にあるArtificial lake.

Overview

Mt. Kakudayamaの北東麓、Sagataの約2km南に位置する。Agriculture:ForIrrigation用水源として利用されてきたほか、洪水調整機能をもつ[2].

1950 eraToSagataよりも広い湖面をもっていたが、1970 era前後の県営かんがい排水事業によって排水路が整備され、一時草地化した。その後、国の農業政策の変更によって農地化計画は取り止めとなり、遊水地としてかつての湖底が掘削されることになり、治水対策と自然保護を目的に1998年度に公園として整備された[3][2].

Uwasekigata Park

潟のまわりはCity parkとして整備されている。春は桜や菜の花、秋はコスモスの名所となっている。

Rice strawUtilizedART作品の展示イベント「Straw artまつり」の拠点となっている。

Transportation

  • JR EastEchigo Line巻駅からNiigata Transportation Bus角田妙光寺・海水浴場行に乗車[4]。「布目」下車後徒歩5分。
  • 同駅から季節運行の「にしかん観光周遊ぐる〜んバス」乗車[5]。「上堰潟公園」下車後すぐ。

footnote

  1. ^ a b c 上堰潟 潟のデジタル博物館 -Retrieved August 2019, 1.
  2. ^ a b 上堰潟公園パンフレット(表) (PDF) --Niigata City. Retrieved November 2019, 1.
  3. ^ 上堰潟の魚類相調査報告 井上信夫 研究補助員/生物多様性保全ネットワーク新潟 (PDF) - 新潟市潟環境研究所.2019年1月14日閲覧。
  4. ^ 潟東エリア --Niigata Kotsu Kanko Bus. Retrieved December 2019, 7.
  5. ^ Transit Bus - アイケー・アライアンス.2019年7月11日閲覧。

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Meteor shower

Meteor showerWhat is (Ryuseigun)?Celestial sphereOne point above (Radiant pointorRadiant pointA group of groups that appear to spread radially around the centermeteorIt means that.Meteor showers that belong to the meteor showerMeteor showerThat is.Meteor showers appear at the same time each yearConstant groupAnd actively appear every few years to decadesTorsion group, Suddenly activeSudden groupThere is.For examplePerseids meteor showerIs a stationary group,Leonid meteor showerIs a periodic group.As a sudden groupPhoenix meteor showerIs given as an example.

Origin of meteor shower

Substances that cause the meteor phenomenonMeteoroidThat is.By orbit calculation, meteoroids are mainlycometIs thought to be released from, but some小 惑星There seems to be some origin.Such celestial bodies that have released meteoroids that bring about meteor showersMother celestial bodyThat is.Around the mother celestial body, a group of released meteoroids extends in a thin band shape.Dust trailCalled.The dust trail orbits itself in almost the same cycle as the parent body.When the orbit of the dust trail and the orbit of the earth intersect, and the dust trail and the earth approach this intersection at the same time, the collision between the dust trail and the earth creates a meteor shower.

The dust trail grows longer as it goes around and diffuses into orbit.The periodic group is one in which the dust trails are concentrated in a part of the orbit, and the stationary group is one in which the dust trails are diffused almost uniformly in the orbit.Therefore, it can be said that the periodic group is a relatively young meteor shower and the stationary group is an old meteor shower.

It is known that there are multiple dust trails in orbit because the release of meteoroids from the parent body is usually not one-time.Since the orbits of these are changing little by little due to the attractive force of Jupiter and the like, the number of meteors that appear may change or may not appear.Especially when the earth encounters a dust trail with a high spatial density of meteoroids.Meteor showerOr may be.Leonid meteor showers are known as meteor showers that cause meteor storms, and meteor storms were seen in various parts of the world in 2001.

The idea of ​​dust trail has been introduced in recent years.[When?]It was advocated andOrbital elementBy calculating, it has become possible to predict the time and region where meteors appear most frequently with much higher accuracy than conventional empirical forecasts.

Meteor shower name

Meteor showers are usually called Leonids, Perseids, etc. after the constellation with the radiant point.Quadrantids meteor showerWhat was called by the former constellation name, such asDraconids meteor showerlikeMother celestial bodySome are called by the name of. At the 2009 International Astronomical Union General Assembly, it was decided that the names of meteor showers would basically be based on constellation names rather than comet names.[1]..Along with that, the Japanese name setting rule for meteor showers in Japan was also decided.[2].

As for English names, from constellations near the radiant point and stars that can be used as landmarks, as with Japanese names,Latin OfPossessiveAdd id or ids to the end of the word in the change.As an example,Delta AquariiThe meteor shower of (Delta Aquarii) is Delta Aquariids.

Famous meteor shower

First, the name of the "three major meteor showers" is in JapanNational ObservatoryIt is also used for forecasting, etc., and is the Quadrantids, Perseids, and Geminids. [3]

In addition to this, there are meteor showers of various sizes.Other than the three major meteor showers

and so on.For sudden meteor showers

and so on.

Source

literature

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