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Questions tagged [solar-eclipse]

Questions about the complete or partial blocking of the sun by the moon.

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Plotting the path of an eclipse

NASA has published 5000 years of future solar eclipses at https://eclipse.gsfc.nasa.gov/SEpubs/5MCSE.html . They have included in them a number of low fidelity maps, and the parameters to calculated ...
PearsonArtPhoto's user avatar
0 votes
1 answer
118 views

Can anyone point me to pictures of a region of the night sky during a total eclipse and with the sun not present?

Can anyone show me where I can find at least one photograph of the region of the night sky during a total eclipse and another at night with the Sun not present? I'm interested in the data that ...
Ted Jackson's user avatar
1 vote
0 answers
47 views

What is the difference between a solar eclipse's (a) magnitude and the (b) moon/sun size ratio?

After watching a Smarter Every Day 2 YouTube video featuring Gordon Telepun, I purchased his ebook Eclipse Day 2024 and More off the Google Play store. In the book, he has a link to Xavier Jubier’s ...
Curious Layman's user avatar
1 vote
0 answers
51 views

Has anyone attributed a specific Baily's bead to a specific feature on the Moon? If so, when was this first done?

From Wikipedia's Baily's beads: Lunar topography has considerable relief because of the presence of mountains, craters, valleys and other topographical features. The irregularities of the lunar limb ...
uhoh's user avatar
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16 votes
2 answers
6k views

Why is there a year 1 B.C., a year 0, and a year 1 A.D. in NASA’s Five Millennium Canon of Solar Eclipses?

I was looking through NASA’s Five Millennium Canon of Solar Eclipses, and I am really confused by the fact that there is a year -1, 0, and 1. I was always taught that there was no year 0, that we just ...
Curious Layman's user avatar
0 votes
0 answers
34 views

Is there a known magnitude of the sun that needs to be covered for the diamond ring effect or Bailey’s beads to occur?

During a total solar eclipse, there is this brief, roughly 1-20 seconds during which some absolutely incredible, indescribable phenomenon occurs. It was the most beautiful thing I have ever seen. They ...
Curious Layman's user avatar
0 votes
0 answers
35 views

Is it possible for both transition points in a hybrid eclipse to occur so close together they can be seen from the same spot on earth?

There are 4 categories of eclipses. There are partial, annular, total, and hybrid eclipses. In a partial eclipse, part of the moon covers the earth casting its penumbra on earth. Judging from my ...
Curious Layman's user avatar
0 votes
0 answers
25 views

Is there any way to know how much time of totality is experienced during a hybrid eclipse in NASA’s 5 Millennium Canon of Solar Eclipses?

I was just looking through NASA’s 5 Millennium Canon of Solar Eclipses. It’s really a fantastic list, having the max time of totality and all. I was trying to figure out what the maximum amount of ...
Curious Layman's user avatar
2 votes
1 answer
64 views

Eclipse phenomena in annular vs partial solar eclipses

It was previously established that even very "deep" (magnitude close to 1) partial solar eclipses - for example, such as viewed from Toronto a few days ago - don't exhibit most of the ...
Karl Knechtel's user avatar
0 votes
0 answers
32 views

upper and lower bounds for how big the moon could be whilst still letting you see the sun's corona during totality

It's often said that the reason total eclipses are possible is because altho the moon is 400 times smaller than the sun it's also 400 times closer than the Sun. But it occurs to me that the apparent ...
neubert's user avatar
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4 votes
0 answers
96 views

Sun and moon same angular radius - how unlikely is this? [duplicate]

How many planets do we expect, statistically, in the universe, have a sun and a moon with such a similar angular diameter as we do on earth? How many habitable planets? Is it possible to calculate ...
Rabbi Kaii's user avatar
29 votes
2 answers
4k views

How precise are future Solar eclipse timing, path and dates, what could change timing/path?

News says that next Solar eclipse in USA will be in 2044 and 2045 . For 2045 eclipse eclipse begin time is calculated up to the seconds. Duration for USA is mentioned as 1h, 26m, 35s also. I am not ...
puzzled's user avatar
  • 607
1 vote
1 answer
66 views

What would the orbit diameter of the Moon be for an 'eclipse free' orbit period?

Let's see if I'm looking at this properly. In a simplistic way (ignoring orbit precession and other minor effects) if the Moon had a period of 365.25 days / 12 (30.438 days) and Moon was positioned in ...
BradV's user avatar
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15 votes
1 answer
5k views

What caused pink flares during the eclipse

During the solar eclipse totality, I noticed pink lights on the rim around the moon. In a telescope, they were obviously flare like. Id like to know what causes them to have that color. Not knowing ...
Cort Ammon's user avatar
0 votes
2 answers
171 views

Shadow Bands: How can atmospheric turbulence obscure the sun-crescent immediately before a total solar eclipse? and why are they 'bands'?

The most known explanation for the Shadow Bands, which is visible right before and after a total solar eclipse, is that some air particles refract the light of the thin sun-crescent, preventing them ...
George Lee's user avatar
0 votes
1 answer
14k views

Is it safe to view a solar eclipse with the naked eye during totality?

I thought I knew the answer to this up until today I read an article by an eye doctor who said one should keep the eclipse glasses on even during totality. Now I am somewhat confused. Can anyone ...
Sedumjoy's user avatar
  • 1,201
6 votes
5 answers
2k views

What are the best options for watching total or partial solar eclipse during bad weather conditions?

What are the best alternatives for watching either a total or a partial solar eclipse during inclement weather conditions? I can watch partial solar eclipse at home, without driving anywhere. I can ...
Timur Shtatland's user avatar
3 votes
4 answers
675 views

Can emergency blanket material be used for making a homemade solar filter for a digital camera?

Can emergency blanket material be used for making a homemade solar filter for use with a digital camera? It seems to be aluminized Mylar.
Geremia's user avatar
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1 vote
0 answers
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What Exactly Causes Lunar Nodal Precession?

I'm trying to understand what exactly causes lunar nodal precession. Based on this article, my understanding is that precession of the plane of the moon's orbit is what causes the motion of the Moon's ...
Stephen W.'s user avatar
3 votes
1 answer
145 views

Delta T used by US Naval Observatory

I'm trying to compare some eclipse calculations to that by the U.S. Naval Observatory, specifically, these results. One thing I just don't understand is how they come up with a Delta T of 72.8s. ...
hanno's user avatar
  • 133
8 votes
3 answers
4k views

Can a lunar eclipse happen at night and be followed by a solar eclipse the next day?

Is it possible for a lunar eclipse to occur during the night and then be followed by a solar eclipse the next day? Could these two events happen consecutively, and if so, how rare is this phenomenon?
Kala Bicho's user avatar
5 votes
7 answers
3k views

The darkness that is equivalent to the block of 99.5% of the sun

In the incoming April total eclipse in North America, if a city's sun is said to be 99.5% blocked, What darkness can it reach compared to the period of dawn or dusk or evening? I ask this question ...
E Zhang's user avatar
  • 212
-1 votes
1 answer
196 views

Why is the lunar disk completely black during solar eclipses?

I noticed that during solar eclipses the lunar disk looks completely black, it is impossible to see any relief details on it. At other times, the unlit part of the Moon is quite clearly visible. An ...
Vladimir Orlov's user avatar
1 vote
1 answer
2k views

How to confirm that I am in the center of the path of totality for the Solar Eclipse of April 08 2024 using GPS or Android/Iphone App?

There is going to be a Solar Eclipse on April 08 2024. I will need to travel to be in path of totality from California/Florida. I am trying to get a Android or iPhone App that can tell me if i have ...
puzzled's user avatar
  • 607
3 votes
1 answer
137 views

Details of the Moon's night photographed in a total solar eclipse

I didn't know that in photographs of total solar eclipses you could see details of the Moon's night. To my surprise, look at this beautiful photo of the solar eclipse of 2024/04/23 taken by amateur ...
Albert's user avatar
  • 2,264
1 vote
0 answers
90 views

Kepler's description of lunar mountains before telescope

This question Why is the lunar relief not visible in photographs of solar eclipses? Reminds me of something that I remember that Johannes Kepler wrote. When telescopes discovered mountains and ...
M. A. Golding's user avatar
0 votes
0 answers
161 views

Do solar eclipse paper glasses need to list both the ISO and CE stamp to be compliant or is the ISO sufficient?

I purchased them at the checkout at Walmart. They are Manufactured by American Paper Optics, LLC. Visionscientific.com ISO 12312-2. However I don't see the CE on the glasses. Are they still OK? The ...
Sedumjoy's user avatar
  • 1,201
6 votes
2 answers
3k views

Why is the lunar relief not visible in photographs of solar eclipses?

I looked at a lot of high-quality images of solar eclipses and noticed the following thing: In all the photographs I've seen, the lunar disk has a completely clear outline, in which it is impossible ...
Vladimir Orlov's user avatar
19 votes
1 answer
21k views

How do I know it is safe to remove eclipse glasses when viewing a total solar eclipse?

I know this sounds like a really stupid question. But since I have never seen one or even used solar eclipse glasses I assume when I can no longer see the sun through the glasses then it is safe to ...
Sedumjoy's user avatar
  • 1,201
4 votes
1 answer
169 views

Visualized shapes of areas of total and partial solar eclipse

I'm looking for an animated (showing how the situation changes as time passes) online map of a solar eclipse (can be a past or future one, it's for educational purposes) showing areas on Earth with ...
ByteEater's user avatar
  • 143
0 votes
0 answers
86 views

What is the name of this eclipse cycle (if there is one)?

Today I navigated to Wikipedia's "Eclipse Cycle" page and found that they had updated their table of eclipse cycles with many more named cycles. However, one particular cycle that I had ...
user22542's user avatar
  • 240
6 votes
1 answer
291 views

When was the last time a total solar eclipse on Neptune courtesy of Triton occured, and when will be the next?

If Triton had an equatorial orbit, then solar eclipses would occur around the Neptunian equinox - same as with Saturn and Uranus. But Triton's orbit is infamously inclined to Neptune's equator, so ...
user267545's user avatar
12 votes
1 answer
2k views

What do Saturn's rings look like during a total solar eclipse, viewed from one of its moons?

Assuming the observer is standing on one of Saturn's moons, with an atmosphere and angle that allows them to see Saturn and its rings in the sky, what do the rings look like during a total solar ...
SaintDiabolus's user avatar
1 vote
1 answer
187 views

How often do eclipses occur at any given place, if we include partial eclipses?

There are dozens of places where you can see how often total eclipses occur at the same location on average. My question is, how often do eclipses occur at any given place, if we include partial ...
George Lee's user avatar
4 votes
1 answer
188 views

Comet and eclipse

It seems likely the 12P/Pons-Brook comet will be visible at the same time as the 2024-04-08 American eclipse. How unusual is this and what can science say about what will appear? What other historical ...
David's user avatar
  • 337
10 votes
5 answers
9k views

During a total solar eclipse is it possible to see solar flares with the naked eye?

I read that it might be possible but I am wondering can I actually see small flames jetting from the surface around the circumference of the eclipse assuming they are active at the time? There is a ...
Sedumjoy's user avatar
  • 1,201
3 votes
1 answer
811 views

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 ...
Nick Williams's user avatar
8 votes
2 answers
301 views

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?
Dr. user44690's user avatar
3 votes
1 answer
315 views

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 ...
sv_lane's user avatar
  • 133
0 votes
0 answers
29 views

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 ...
Slush's user avatar
  • 1
0 votes
1 answer
249 views

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 ...
Rohit Pandey's user avatar
1 vote
0 answers
51 views

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 ...
Rohit Pandey's user avatar
7 votes
2 answers
844 views

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 ...
scm's user avatar
  • 301
3 votes
4 answers
4k views

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 ...
Daniel Griscom's user avatar
2 votes
1 answer
184 views

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 ...
arda güler's user avatar
6 votes
3 answers
320 views

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 ...
Bennet's user avatar
  • 213
3 votes
1 answer
265 views

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 ...
Geographos's user avatar
2 votes
0 answers
65 views

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 ...
vwoods's user avatar
  • 21
2 votes
0 answers
901 views

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 ...
Jack Daus's user avatar
4 votes
1 answer
199 views

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 ...
longtry's user avatar
  • 403

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