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芒种丨收获幸福

 二维码 2290
来源:中国科学院紫金山天文台

“时雨及芒种,四野皆插秧。”《中国天文年历》显示,6月6日0时26分迎来2022年“芒种”节气。

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天象预报

芒种

夏至

太阳

在金牛座运行。目前太阳活动性有所增强,太阳正面上有5群黑子,可通过带减光的望远镜观测。

月亮

6月14日19时52分望,这轮满月距离地球不足36万千米,堪称“超级月亮”,日落后又圆又大的月亮将从东南方升起,彻夜明亮。

水星

在金牛座顺行,6月16日23时,水星西大距,与太阳的角距离为23度,黎明前在东方低空可用望远镜观测。

金星

由白羊座向金牛座顺行,6月11日天王星合金星,日出前在东方低空,肉眼可见非常明亮的金星,天王星则需要借助望远镜寻找。

火星

从鲸鱼座短暂路过后,继续回到双鱼座顺行。凌晨2点左右即从东方升起,黎明前位于东南方向。

木星

在双鱼座顺行。凌晨1点半左右即从东方升起,黎明前位于东南方向。

土星

在摩羯座逆行。6月9日凌晨,土星的第三大卫星土卫八进入土星的阴影里,00:09土卫八食始,03:38土卫八食终。这一现象大约每15年才会看到一次,借助天文望远镜可以观测。


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太阳系中大行星围绕太阳公转的轨道几乎位于同一平面,且方向一致,这与太阳系的形成机制有关。

根据目前的理论,太阳系起源于一团旋转的巨大分子云,在引力作用下中心坍缩形成太阳,而其他物质则向外扩散形成一个绕太阳旋转的扁平原行星盘。原行星盘内的物质由气体和尘埃构成,在引力吸积、碰撞等作用下形成了目前的各大行星、卫星和小行星、彗星等天体。因此大行星的轨道面也就分布在同一个平面,即原行星盘所在的平面附近。事实上,除了水星之外,其他七颗大行星的轨道面相对于黄道面的夹角都在4度以下,而且公转轨道方向都与地球保持一致。如果以木星的轨道面为参考,各大行星的轨道倾角则更小。这个结果与大行星起源于同一个原行星盘的行星形成理论一致。

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The Grain in Ear

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On June 6th, 00:26, the longitude of the sun is 75º, which marks the ninth solar term of the year—Grain in Ear. Around this solar term, as wheat becomes ripe for harvest, farmers are in a rush for harvesting wheat and planting rice or corn. Grain in Ear is followed by summer time, when most flowers begin to wither away。

Astronomical Forecast

Grain in Ear

          

Summer Solstice

The Sun

The sun travels in Taurus. Currently, solar activities are increasing. On the front surface of the Sun, 5 groups of sunspots can be observed through a telescope with a light filter device.

The Moon

On June 14th, 19:52, the moon becomes a full moon. The distance between this “supermoon” and the Earth is less than 360,000 kilometres. After sunset, the full moon rises from the south-eastern sky and shines brilliantly all night。

Mercury

Mercury travels in prograde motion in Taurus. It will reach its greatest western elongation on June 16th at 23:00. Its angular distance to the Sun is 23º and can be observed with a telescope before dawn.

Venus

Venus travels in prograde motion from Aries to Taurus. On June 11th, it is at conjunction with Uranus. In the low eastern sky before sunrise, extremely bright Venus can be seen with naked eyes, while it requires a telescope to find Uranus.

Mars

After passing through Cetus shortly, Mars continues to travel in prograde motion in Pisces. It rises around 2 o’clock in the morning,   and can be found in the south-eastern sky before sunrise.

Jupiter

Jupiter travels in prograde motion in Pisces. It rises around 1:30 in the morning and is located in the south-east sky before dawn.

Saturn

Saturn travels in retrograde motion in Capricornus. Before dawn, the third largest moon of Saturn, Iapetus, enters the shadow of Saturn. The eclipse of Iapetus begins at 00:09 and ends at 03:38, which can be observed with a telescope. Such event as seen from the Earth takes place about every 15 years.



轮值主编:张旸

制作、编辑:王科超

英文版设计:朱曼清

(金陵中学)ZHU manqing