Questions tagged [solar-eclipse]
Questions about the complete or partial blocking of the sun by the moon.
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Is there a maximum practical telescope aperture for viewing (through a filter) a solar eclipse?
I grew up stargazing through various telescopes of increasing aperture sizes, and now that I can afford it, I'm about to invest in a more serious telescope to suit me for decades to come. My primary ...
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Orbit of the moon so that there are no eclipses
Theoretically speaking, what orbit should the earth's moon must take so that there are never any eclipses - solar or lunar? Is it mathematically possible to construct such an orbit?
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Attachment for viewing the sun with a telescope
In 2016 I got to see the transit of Mercury thanks to a group of volunteer astronomers. The astronomer had a device attached to the telescope eyepiece that allowed the light to project onto frosted ...
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The Occurrence Rate of Lunar/Solar Eclipses and Its Effect on a Planet
I was pondering over ideas for fantasy worlds and came across one that begged a question about the effect of eclipses on the Earth. If a total lunar/solar eclipse happened every 80 years or so instead ...
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How old are the total solar eclipses as we see them today? [closed]
I've seen it referenced often that "total solar eclipses" (of the kind we see today where the corona of the Sun is visible as opposed to all of it being blocked) have become possible only ...
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Why are total solar eclipses possible (probability wise) [duplicate]
Total solar eclipses are possible because the Moon is about 400 times smaller than the Sun and also 400 times closer than it is. In any planetary system, the odds of this should be near zero. Is there ...
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How common for all 7 planets to be above the horizon?
I was planning for the Solar Eclipse in April 8th 2024 and noticed that at the time of totality at my location in Western NY, all 7 planets will be above the horizon. Earlier in the day it's all of ...
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Using binoculars during solar eclipse totality
I'm hoping to see the April 2024 total eclipse (which would be my first), and am considering buying equipment to improve the view. Of course I'll have generic solar filter glasses, but I'm wondering ...
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By analytical geometry, how to calculate the fraction of the visible area of the Sun at a point during an eclipse?
Assume a perfectly spherical Sun and Moon, and ignore atmospheric effects for simplicity. I'm an observer in the origin of my coordinate system, and I know the positions of the centers of the Sun and ...
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How close is a typical New Moon to the Sun in the sky?
In a Solar Eclipse, the Sun, Earth and Moon are exactly colinear (well some area of the Earth where the eclipse is visible), and these are relatively rare.
But in addition, Sun, Earth and Moon are ...
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Solar eclipse impact on twilight
Has anyone observed the impact of the solar eclipse on twilight? I mean mostly the extension of the totality path in the atmosphere.
I mean the pattern below:
I - normal situation with total solar ...
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Is there an orbit around the earth that experiences a total solar eclipse by the Moon at least every month?
Is there a way to design an earth orbit so that it passes through the Moon's umbra with greater frequency than total solar eclipses occur on earth's surface?
What is the maximum frequency of eclipses ...
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What does it look like to view an annular solar eclipse with the naked eye?
How does the experience of an annular solar eclipse compare to a total solar eclipse? In particular, what does it look like to take a glimpse of an annular solar eclipse with the naked eye? How dark ...
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Is it possible to watch both annular and total eclipse at the same place?
I read that some rare eclipses are hybrid, where it can be annular near the beginning and/or end of its journey over the Earth's surface, and total in between. That begs the question, if a person is ...
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I am trying to find the dates for a solar eclipse where the Earth and Ceres are in line
In the game i'm working on a particular event happens during a solar eclipse while the Earth and Ceres are in line, or a few days before. I'm looking for dates between 2100 and 2300.
Anyone know a way ...
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Counting from the 21st century forward, what place on Earth will be last to experience a total solar eclipse?
All coordinates on Earth are equally likely to experience a solar eclipse, so it's just a matter of luck where the Moon's shadow happens to fall. But some place has to draw the short straw and be the ...
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How would solar and lunar eclipses differ if the moon was replaced by every planet in our solar system?
A solar eclipse on Earth lasts only around 7 minutes and some of them can be total, annular, partial, or hybrid. The moon's shadow on earth is small compared to the Earth's shadow on the moon. Usually,...
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What is the difference between a solar eclipse seen from Earth, the Moon, and from 1 one of Jupiter's Galilean moons (ex. Io)?
A solar eclipse viewed from Earth reveals the sun's corona and you can only see the brightest stars from Earth.
However a solar eclipse viewed from the moon would show the red ring around Earth.
I ...
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What experiments can be performed during a solar and lunar eclipse respectively?
As an amateur astronomer, I intend to perform a few simple experiments during total solar and lunar eclipses. However, I am not aware of all the parameters that can change during these eclipses and ...
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What is the meaning of a local solar eclipse start time before sunrise or end time after sunset?
I was doing calculations for the forthcoming solar eclipse and the following question arose.
All times below are in Indian Standard Time:
For Chennai:
Eclipse Start: 17:14,
Sunset: 17:41,
Eclipse End: ...
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How do I calculate my desired distance of mirror from screen?
I plan on using flat mirror projection, among other methods, to view Tuesday's partial eclipse.
How do I calculate the distance my flat mirror has to be from my screen in order for it to cast a sharp, ...
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What are some methods that could do it like a pair of binoculars or a telescope would, without actually using either?
I'm an astronomy enthusiast in highschool. A partial solar eclipse will be visible from my country in 9 days, but it will take place during a school day. What are some projection methods that'll ...
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How dark are eclipses of Jupiter's moon by the planet?
On Earth, an eclipse of the Sun (by the Moon) can get pretty dark, but not as that dark as a regular night. Usually it would look like civil twilight at maximum darkness.
This is primarily because of ...
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Is it possible to block the surrounding light in a solar eclipse if we made the moon bigger or closer to the earth?
Is it possible to block the surrounding light in a solar eclipse if we made the moon bigger or closer to the earth? In an eclipse, you always see a ring of light surrounding the moon, but I am ...
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Do the Sun's rays get focused at or near the L1 Lagrangian point?
I have seen so many schematic pictures of eclipses (solar and lunar), and in all of them, the Sun's rays are focused at a specific point (left of the Earth in lunar eclipses and a slightly left of the ...
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Is it possible to narrow down possible dates for the following eclipse pattern?
I am searching for an year which satisfies the following criteria.
Dates are in Gregorian calendar.
Criteria
Year range 3800 BC to 500 BC
Solar Eclipse of any kind between October 14 and October 22 ...
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Why aren't there eclipses every month when the moon's orbit is aligned with the ecliptic as a result of lunar precession?
I can understand why we don't have eclipses every month when the inclinations of the ecliptic plane and the moon's orbital plane are different. But the inclination of the moon's orbital plane changes ...
user44426
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Why does the difference between terrestrial times and universal time, $\Delta T$, have such a strange behaviour?
I was reading about ancient astronomy, and one of the main phenomena described is eclipses. Now, I read this 2016 paper by Stephenson, Morrison and Hohenkerk, in which they determine the values of the ...
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Solar planets' aphelion longitudes in 2021?
What is the ecliptic longitude of the aphelion of each of the solar planets (Moon, Mercury, Venus, Earth, Mars, Jupiter, Saturn) currently in 2021 and from the observer's point of view on the earth? ...
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When could solar eclipse happen in a way that Sun's disk is diminishing from below?
I'm trying to solve this task:
During a solar eclipse, an observer noticed that the diminishment of the Sun's disk began directly from below. Where and when could this be?
Concerning "where&...
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Could there be an eclipse tomorrow if the Pleiades is covered by the Moon tonight?
I'm trying to solve this task:
Suppose today there is a covering of the Pleiades star cluster by the Moon. Could there be an eclipse of the sun tomorrow? The moon?
I think the answer to both is no, ...
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How to calculate eclipses on a planet in a binary star system
I posted this question on the physics page but decided it might be best if I post it here instead as it may be a more astronomy related question. I also haven't received any answers over there so far ...
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How to find the the diameter of the moon during a total solar eclipse?
I am not able to find the diameter of the moon. I have the following question in my physics textbook:
During a total solar eclipse the moon almost entirely covers the sphere of the sun. Write the ...
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Is it safe to look at an annular eclipse during sunrise using a medium?
Will looking at an annular eclipse reflection through a bowl of water damage your sight?
I already tried viewing its reflection through a bowl of water.
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Sun traveling North & South in this graphic?
"CBS This Morning" showed this graphic for the 2024 Eclipse that will be seen from America.
I would have expected a solar eclipse to follow an East to West path across the USA since, at ...
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Is it safe to look at an annular eclipse during sunrise? [duplicate]
I'm lucky enough to be where an annular eclipse will happen at the same time as sunrise. Usually, it's dangerous to look at an eclipse directly. However, the sun appears much less bright at sunrise.
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Safety while using a telescope to view a total solar eclipse
I have an 8-inch reflector telescope and a solar filter that goes on the front aperture to view the Sun (most recently to view the transit of Mercury). If I were to use this telescope during a total ...
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What is the probability of having a solar eclipse on a planet?
If we go by our planets 5/8 of our planets have solar eclipses.
What is the probability of a planet having a solar eclipse based off other simulations?
Is there a more accurate way to calculate the ...
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What’s an Earth-Sun-Moon eclipse called?
I understand we would all die and this is a common “think about your question before you ask it” thing in high school, but what would we call an eclipse where the Sun gets in between Earth and the ...
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How much dimmer is a partial solar eclipse that goes from -26.71 to -25.89?
Based on what I found in Stellarium, for Vlissingen, Netherlands, on July 2, 1666 there was a partial eclipse with a change of apparent brightness -26.71 to -25.89.
Is it valid to say based on the ...
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Why is solar corona in visible light filamentary?
There is a video on YouTube (unfortunately in Czech) where Miloslav Druckmüller talks about structure of the solar corona in visible light. He explains that the filaments, clearly visible on his ...
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How long do other planets in our solar system have total solar eclipses?
Jupiter, Saturn, Uranus and Neptune — can all have total solar eclipses so how long do they last?
https://www.livescience.com/amp/60037-do-other-planets-have-solar-eclipses.html
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What is the duration of the era during which it will be possible to perceive a total solar eclipse?
Total solar eclipses occur because the Moon and the Sun have the same apparent size in Earth's sky — the Sun is about 400 times wider than the Moon, but the Moon is about 400 times closer.
It's my ...
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Can a planet in our system eclipse the sun as seen from another one?
When the Sun, Earth and Moon get properly aligned, we get eclipses, where the Sun is partially or totally hidden by the Moon when seen from Earth.
Is it possible for one planet of the solar system to ...
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When does a solar eclipse become noticeable?
For a human viewer located on Earth, is there an approximate apparent magnitude at which a solar eclipse becomes apparent in the form of a noticeable change in ambient brightness?
Assume normal ...
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How accurate is Stellarium at depicting the Earth, from the Moon, approaching a solar eclipse (from Lunar perspective)?
This is how Stellarium depicts the positions of the Earth and Sun 24 hours before the solar eclipse (from Lunar perspective) on Jan. 13, 2131
A close up of the Earth on that day (Jan 12) shows no ...
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How to calculate the point on the globe with maximum magnitude with given Besselian elements and given time for a partial solar eclipse?
I am currently working on improvement of an Android app that calculates solar eclipses. For many days now I have not been able to solve a mathematical problem concerning solar eclipses, so I decided ...
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How much of the Sun's disk must be covered for a visible shadow to be cast?
At first it seems like the answer is obvious, $100$% or more, that's what a total solar eclipse is after all. But after seeing satellite images of the June 21st 2020 annular eclipse, the shadow cast ...
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How did DSCOVR capture the Moon's shadow on Earth during the August 21 2017 solar eclipse without the Moon itself also being visible?
In this gif you can clearly see the Moon's shadow moving from the West Coast of the U.S. towards the East Coast during the August 21 2017 eclipse.
DSCOVR (the satellite that imaged this) is located at ...
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Calculating Solar eclipse magnitude with the besselian elements
Calculating Solar eclipse magnitude with the besselian elements
What is the mathematic formula for calculating the magnitude of a solar eclipse using Besselian elements?