You can probably barely see it with a telescope, too.

通过望远镜也不一定能观察到。

youdao

The main advantage of fast focal ratios with a telescope used visually is a wider field of view.

快焦比的主要优点在于可以提供一个更宽的视角。

youdao

The trouble is, dark matter has never been directly observed with a telescope or any other device.

问题是，暗物质从未通过望远镜或其他设备直接被观测到。

youdao

This year also marks the four hundredth anniversary of the first recorded astronomical observations with a telescope by Galileo.

VOA: special.2009.10.27

He carried a telescope with him wherever he went.

不论到哪里他总是随身带着望远镜

耶鲁公开课 - 欧洲文明课程节选

In his first observations from Mount Wilson, Hubble used a telescope with a mirror one hundred fifty-two centimeters across.

VOA: special.2009.04.29

The Vatican Observatory is located inside the palazzo, complete with a telescope and a world-class collection of meteorites.

NPR: Vatican Sends Message: Pope's Retirement For Real

To achieve the same result of Alma with a traditional telescope, scientists would need to build one so big, that it would take up 15 sq km in surface space.

BBC: Alma telescope: Ribbon cut on astronomical giant

When Dr Koechlin and his team pointed it at Mars they could distinguish that planet's two tiny moons a task which would require a Newtonian telescope with a mirror at least 30cm across.

ECONOMIST: The search for alien life