# How far out before some other star is brighter than the Sun? **URL:** \ **Category:** Factual Questions\ **Created:** [November 23, 2012, 5:28am UTC](https://boards.straightdope.com/t/how-far-out-before-some-other-star-is-brighter-than-the-sun/641873 "2012-11-23T05:28:04Z")\ **Posts on this page:** 20\ **Page:** 2
**Author:** ![dimmy\_derko](https://avatars.discourse-cdn.com/v4/letter/d/43a26b/32.png) [@dimmy\_derko](https://boards.straightdope.com/u/dimmy_derko)\ **Post date:** [November 24, 2012, 12:20am UTC](https://boards.straightdope.com/t/how-far-out-before-some-other-star-is-brighter-than-the-sun/641873/21 "2012-11-24T00:20:27Z")
> [@Alka\_Seltzer](#): > > Yes, but all at different speeds, wobbling in and out of the plane of the disc. If they were all travelling at vastly different speeds, wouldn’t that affect how we see the constellations? I thought we’d all have to be travelling at a similar enough speed, otherwise they wouldn’t remain so constant? They only alter fractionally over 1,000’s of years, so their relative speeds around the galaxy can’t be significantly different, can they? > [@Alka\_Seltzer](#): > > **It’s not like throwing a cigarette out of a car window**. Ignoring other factors, it doesn’t matter which way you accelerate a rocket, it’s velocity with respect to the solar system will be the same. Why though? If you throw something out of a car window, it isn’t gravity that sucks it back in, it’s the air pressure outside. In space, you don’t have to worry about that, so if you can “throw” something beyond earth’s gravitational pull, why doesn’t it just get left behind? > [@Alka\_Seltzer](#): > > Actually, the quickest way to get a space probe out of the solar system is to aim it at Jupiter, and use it’s strong gravity to perform a [gravitational slingshot](http://en.wikipedia.org/wiki/Gravitational_slingshot) maneuver. Space travel is counter-intuitive to me and trying to comprehend a quasar gives me an headache.. ---
**Author:** ![Chronos](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/chronos/32/134_2.png) [@Chronos](https://boards.straightdope.com/u/Chronos)\ **Post date:** [November 24, 2012, 3:23am UTC](https://boards.straightdope.com/t/how-far-out-before-some-other-star-is-brighter-than-the-sun/641873/22 "2012-11-24T03:23:04Z")
> [@](#): > > If they were all travelling at vastly different speeds, wouldn’t that affect how we see the constellations? I thought we’d all have to be travelling at a similar enough speed, otherwise they wouldn’t remain so constant? They only alter fractionally over 1,000’s of years, so their relative speeds around the galaxy can’t be significantly different, can they? The speeds are fairly high, but the distances are friggin’ _huge_, so it still takes a very long time for significant changes. > [@](#): > > Why though? If you throw something out of a car window, it isn’t gravity that sucks it back in, it’s the air pressure outside. In space, you don’t have to worry about that, so if you can “throw” something beyond earth’s gravitational pull, why doesn’t it just get left behind? Because in space, you don’t have any air. If you toss something out the “back window” of the Solar System, there’s nothing to “stop” it: It’ll just keep on going the same speed it was. So if it starts off going at a small speed (in any direction) relative to the rest of the system, it’ll keep on going at that same speed relative to the rest of the system. ---
**Author:** ![septimus](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/septimus/32/410_2.png) [@septimus](https://boards.straightdope.com/u/septimus)\ **Post date:** [November 24, 2012, 9:19am UTC](https://boards.straightdope.com/t/how-far-out-before-some-other-star-is-brighter-than-the-sun/641873/23 "2012-11-24T09:19:50Z")
> [@Alka\_Seltzer](#): > > Actually, the quickest way to get a space probe out of the solar system is to aim it at Jupiter, and use it’s strong gravity to perform a [gravitational slingshot](http://en.wikipedia.org/wiki/Gravitational_slingshot) maneuver. Looking at a graph on that page, Voyager 2 also got a big speedup from Saturn and a smaller speedup from Uranus. The flyby of Neptune led to a net slowdown, though changing the probe’s direction to leave the ecliptic. I’ve been curious about what limits the planning of such trajectories. Do the probes have thrusters to correct for inaccuracies in flyby predictions? Was it difficult to schedule flybys of all four of the large planets? ---
**Author:** ![Dr.Strangelove](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dr.strangelove/32/6613_2.png) [@Dr.Strangelove](https://boards.straightdope.com/u/Dr.Strangelove)\ **Post date:** [November 24, 2012, 10:08am UTC](https://boards.straightdope.com/t/how-far-out-before-some-other-star-is-brighter-than-the-sun/641873/24 "2012-11-24T10:08:14Z")
> [@Washoe](#): > > If I could pose a related question, I’ve often wondered this—how far do you have to be from the Sun before it looks like just another star? It’s probably not very far, astronomically speaking—probably just like a light-day or two, right? One way of answering the question is to find out how far you have to go before the Sun looks like a point of light to the naked eye (like all other stars do from Earth). The angular resolution of the eye is about 1 arc-minute, or 2.91e-4 radians. The diameter of the sun is 1.38e6 km, so using the small-angle formula gives us a distance of 4.74e9 km. Pluto’s orbit varies from 4.44e9 to 7.31e9 km, so it’s in the right ballpark–from that distance, the sun would still be the brightest star in the sky, but still look like a point. Another way of looking at it: how far away do we have to get before the Sun is no brighter than the brightest (non-Sun) star on Earth? Well, the Sun has a magnitude of -26.74, while the next brightest star Sirius has magnitude -1.47. If my calcs are right, that corresponds to a distance of 113240 AU. That’s 1.79 light-years–a good distance but still less than halfway to the next star. ---
**Author:** ![dimmy\_derko](https://avatars.discourse-cdn.com/v4/letter/d/43a26b/32.png) [@dimmy\_derko](https://boards.straightdope.com/u/dimmy_derko)\ **Post date:** [November 24, 2012, 10:41am UTC](https://boards.straightdope.com/t/how-far-out-before-some-other-star-is-brighter-than-the-sun/641873/25 "2012-11-24T10:41:00Z")
Can I ask a vaguely related question? If you were stood on the last object orbiting our sun(I know it used to be Pluto, but isn’t there supposed to be something else now?), bearing in mind there’ll be no twinkling unless you’re viewing it through an earth-like atmosphere, how different would it appear than all the other points of light? Would it appear to be significantly brighter than the North Star is compared to most other stars? How about another one? How bright would another star have to become to be visible during the day? Would a supernova be spotted by the naked eye on a clear sunnny day? ---
**Author:** ![Alka\_Seltzer](https://avatars.discourse-cdn.com/v4/letter/a/c89c15/32.png) [@Alka\_Seltzer](https://boards.straightdope.com/u/Alka_Seltzer)\ **Post date:** [November 24, 2012, 1:22pm UTC](https://boards.straightdope.com/t/how-far-out-before-some-other-star-is-brighter-than-the-sun/641873/26 "2012-11-24T13:22:10Z")
> [@septimus](#): > > Looking at a graph on that page, Voyager 2 also got a big speedup from Saturn and a smaller speedup from Uranus. The flyby of Neptune led to a net slowdown, though changing the probe’s direction to leave the ecliptic. I was simplifying a bit, sometimes it’s best to use multiple gravity assists. For example, the [Cassini probe](http://en.wikipedia.org/wiki/Cassini%E2%80%93Huygens#Venus_and_Earth_fly-bys_and_the_cruise_to_Jupiter) was swung by Venus twice and Earth once before heading out to Jupiter and on to it’s final destination Saturn. Fun fact, it take more energy to send a probe into orbit around Mercury than to escape the solar system. > [@septimus](#): > > Was it difficult to schedule flybys of all four of the large planets? The Voyagers made use of a rare alignment of the outer planets which won’t occur again for another 175 years, the [grand tour](http://en.wikipedia.org/wiki/Planetary_Grand_Tour). > [@dimmy\_derko](#): > > If you were stood on the last object orbiting our sun(I know it used to be Pluto, but isn’t there supposed to be something else now?), bearing in mind there’ll be no twinkling unless you’re viewing it through an earth-like atmosphere, how different would it appear than all the other points of light? As I said above, 150 to 450 times as bright as a full moon. It would hurt your eyes to look at it directly. > [@dimmy\_derko](#): > > How bright would another star have to become to be visible during the day? Venus, Jupiter and occasionally Mars can be seen during the day. The brightest star, Sirius, isn’t bright enough. > [@dimmy\_derko](#): > > Would a supernova be spotted by the naked eye on a clear sunnny day? That depends how close the supernova is. When [Betelgeuse](http://en.wikipedia.org/wiki/Betelgeuse#Approaching_supernova) supernovas, it is expected to outshine the moon, so would be easily visible. The last supernova visible to the naked eye during the day was in [1604](http://en.wikipedia.org/wiki/Kepler%27s_Supernova). The first was recorded in [185](http://en.wikipedia.org/wiki/SN_185), and there have been a handful since then. ---
**Author:** ![MikeS](https://avatars.discourse-cdn.com/v4/letter/m/919ad9/32.png) [@MikeS](https://boards.straightdope.com/u/MikeS)\ **Post date:** [November 24, 2012, 2:59pm UTC](https://boards.straightdope.com/t/how-far-out-before-some-other-star-is-brighter-than-the-sun/641873/27 "2012-11-24T14:59:48Z")
> [@dimmy\_derko](#): > > Can I ask a vaguely related question? > > If you were stood on the last object orbiting our sun(I know it used to be Pluto, but isn’t there supposed to be something else now?), bearing in mind there’ll be no twinkling unless you’re viewing it through an earth-like atmosphere, how different would it appear than all the other points of light? > > Would it appear to be significantly brighter than the North Star is compared to most other stars? According to the chart on [this Wikipedia article](http://en.wikipedia.org/wiki/Apparent_magnitude), the Sun would be brighter than the full moon on Earth if you were on Eris at the farthest point of its orbit, and a little dimmer than the full moon on Earth if you were on Sedna. It’d probably still be bright enough to cast shadows. By the way, just to be crystal-clear on this: it’s a common misconception that the North Star is the brightest star in the sky. It’s somewhere around [45th brightest.](http://en.wikipedia.org/wiki/List_of_brightest_stars) Even if you knew that already, I figured I’d throw that in to combat ignorance of other people who might read this thread. > [@](#): > > How bright would another star have to become to be visible during the day? Would a supernova be spotted by the naked eye on a clear sunnny day? According to the above link, an object would have to have an apparent magnitude below -4 (lower numbers mean brighter) to be visible on a clear sunny day. Some historical supernovas have indeed gotten brighter than that, most notably the one in [1006 AD.](http://en.wikipedia.org/wiki/SN_1006) ---
**Author:** ![Chronos](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/chronos/32/134_2.png) [@Chronos](https://boards.straightdope.com/u/Chronos)\ **Post date:** [November 24, 2012, 3:51pm UTC](https://boards.straightdope.com/t/how-far-out-before-some-other-star-is-brighter-than-the-sun/641873/28 "2012-11-24T15:51:31Z")
> [@](#): > > I’ve been curious about what limits the planning of such trajectories. Do the probes have thrusters to correct for inaccuracies in flyby predictions? Was it difficult to schedule flybys of all four of the large planets? In some ways, it’s more an art than a science. The _particular_ pattern of flybys that the Voyagers used only comes up every couple of centuries, but it’s not too uncommon that clever mission planners can come up with some interesting pattern of flybys or another. What’s interesting is that computers are fairly poor at this: Give a computer a rough trajectory plan, and it can smooth it out quite nicely, but it’s much harder to make the computer give you the rough plan. Oh, and the probes do all have onboard thrusters to do course corrections. Ideally, you shouldn’t strictly speaking need them, but ideal cases never actually happen. There are always some errors and imprecisions that you need to correct for on the fly. In practice, though, if you plan properly, you can get away with using very small thrusters and fuel reserves. ---
**Author:** ![ZenBeam](https://avatars.discourse-cdn.com/v4/letter/z/3ab097/32.png) [@ZenBeam](https://boards.straightdope.com/u/ZenBeam)\ **Post date:** [November 24, 2012, 4:26pm UTC](https://boards.straightdope.com/t/how-far-out-before-some-other-star-is-brighter-than-the-sun/641873/29 "2012-11-24T16:26:42Z")
> [@Alka\_Seltzer](#): > > As I said above, 150 to 450 times as bright as a full moon. It would hurt your eyes to look at it directly. To expand, based on **Dr. Strangelove** ’s calculation above, the Sun would be at just about the limit of resolving, so for any one rod or cone in your eye, the Sun will be just as bright as if you were looking at it in Low Earth Orbit. In LEO, the Sun will form an image over more of your retina, but will have the same intensity. So if you look at the Sun without protection from Pluto, you’ll be blinding yourself, one rod or cone at a time. ---
**Author:** ![deltasigma](https://avatars.discourse-cdn.com/v4/letter/d/e5b9ba/32.png) [@deltasigma](https://boards.straightdope.com/u/deltasigma)\ **Post date:** [November 25, 2012, 5:05am UTC](https://boards.straightdope.com/t/how-far-out-before-some-other-star-is-brighter-than-the-sun/641873/30 "2012-11-25T05:05:55Z")
This might be of interest - [100,000 stars](http://workshop.chromeexperiments.com/stars/) - and will give a graphic sense of perspective. ---
**Author:** ![whc.03grady](https://avatars.discourse-cdn.com/v4/letter/w/a6a055/32.png) [@whc.03grady](https://boards.straightdope.com/u/whc.03grady)\ **Post date:** [April 27, 2017, 5:43pm UTC](https://boards.straightdope.com/t/how-far-out-before-some-other-star-is-brighter-than-the-sun/641873/31 "2017-04-27T17:43:20Z")
> [@Alka\_Seltzer](#): > > > [@dimmy\_derko](#): > > > > How bright would another star have to become to be visible during the day? > > Venus, Jupiter and occasionally Mars can be seen during the day. The brightest star, Sirius, isn’t bright enough. Reviving my own zombie to fight some ignorance. Under the right conditions, Sirius (and possibly Canopus) _is_ a naked-eye object in broad daylight. [cite](http://adsabs.harvard.edu/full/1984JBAA...94..221H) [another](https://www.ncbi.nlm.nih.gov/pubmed/25967815) ---
**Author:** ![AHunter3](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/ahunter3/32/368_2.png) [@AHunter3](https://boards.straightdope.com/u/AHunter3)\ **Post date:** [April 27, 2017, 6:48pm UTC](https://boards.straightdope.com/t/how-far-out-before-some-other-star-is-brighter-than-the-sun/641873/32 "2017-04-27T18:48:21Z")
Another interesting question is “at what distance from both of them do Sirius AND the sun both fail to be the brightest stars in the sky?” Sirius is the brightest star in our sky because it’s a decently bright star that is pretty damn close to us (albeit not as close as alpha centauri). At some distance, it would start to fade in the background and be outshone by one of the no-kidding BRIGHT stars like Rigel, which might in fact be the one to first outshine Sirius. I guess Canopus and Betelgeuse would be good candidates too. ---
**Author:** ![Weisshund](https://avatars.discourse-cdn.com/v4/letter/w/ba8739/32.png) [@Weisshund](https://boards.straightdope.com/u/Weisshund)\ **Post date:** [April 27, 2017, 7:31pm UTC](https://boards.straightdope.com/t/how-far-out-before-some-other-star-is-brighter-than-the-sun/641873/33 "2017-04-27T19:31:31Z")
> [@Senegoid](#): > > I read somewhere that, from the distance of one of our own outer planets (Neptune or Uranus or maybe Pluto), our own sun looks much like another star. > > Sorry, don’t know where I read that, or how reliable that source might have been, or even how literally it might have been intended. There are some nasa photos that show the sun from that vicinity. There were not terribly different than the artist rendering posted here, but lower resolution looking. Sun is still a really really big thing to be seeing from pluto distance It does not look like another star, but not like the sun either. It more resembles like looking at a planet that is very bright, stars in the sky have no appreciable size to our eyes because they are so far away. I can not remember what they were from, one of the voyagers perhaps? Maybe someone remembers and can link one or something, i cant seem to find them. [Earth on the other hand is a speck from neptune](http://www.ancient-code.com/wp-content/uploads/2017/03/Earth-as-seen-from-Neptune.jpg) ---
**Author:** ![dtilque](https://avatars.discourse-cdn.com/v4/letter/d/d6d6ee/32.png) [@dtilque](https://boards.straightdope.com/u/dtilque)\ **Post date:** [April 27, 2017, 9:09pm UTC](https://boards.straightdope.com/t/how-far-out-before-some-other-star-is-brighter-than-the-sun/641873/34 "2017-04-27T21:09:18Z")
> [@AHunter3](#): > > Another interesting question is “at what distance from both of them do Sirius AND the sun both fail to be the brightest stars in the sky?” > > Sirius is the brightest star in our sky because it’s a decently bright star that is pretty damn close to us (albeit not as close as alpha centauri). At some distance, it would start to fade in the background and be outshone by one of the no-kidding BRIGHT stars like Rigel, which might in fact be the one to first outshine Sirius. I guess Canopus and Betelgeuse would be good candidates too. The answer depends on which direction you head. If you’re headed in the general direction of Sirius, you’ll have to go well past it (as in further beyond it than it is from Earth) before it stops being brightest. And there are other nearby stars that have similar absolute magnitude as Sirius. If you head in their general direction, they may become the brightest before more distant very bright stars. Altair (distance 16.6 ly, abs mag 2.2), Vega (distance 25 ly, abs mag 0.58), Fomalhaut (dist 25 ly, abs mag 1.72), and Procyon (dist 11 ly, abs mag 2.66) are candidates (compare with Sirius (dist 8.6 ly, abs mag 1.4). In the case of Procyon, you would also be headed not too far off the direction of Sirius, so you’d have to get fairly close before the little dog outshines the big dog. ---
**Author:** ![ftg](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/ftg/32/2801_2.png) [@ftg](https://boards.straightdope.com/u/ftg)\ **Post date:** [April 28, 2017, 11:34am UTC](https://boards.straightdope.com/t/how-far-out-before-some-other-star-is-brighter-than-the-sun/641873/35 "2017-04-28T11:34:51Z")
In a mere 1.35 million years there’s going to be better [contender](https://en.wikipedia.org/wiki/Gliese_710). ---
**Author:** ![Chronos](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/chronos/32/134_2.png) [@Chronos](https://boards.straightdope.com/u/Chronos)\ **Post date:** [April 29, 2017, 1:31am UTC](https://boards.straightdope.com/t/how-far-out-before-some-other-star-is-brighter-than-the-sun/641873/36 "2017-04-29T01:31:29Z")
> [@](#): > > Quoth **AHunter3** : > > Another interesting question is “at what distance from both of them do Sirius AND the sun both fail to be the brightest stars in the sky?” Just get close enough to alpha Cen (or any other star, really) that it passes both up. ---
**Author:** ![Dr.Strangelove](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dr.strangelove/32/6613_2.png) [@Dr.Strangelove](https://boards.straightdope.com/u/Dr.Strangelove)\ **Post date:** [May 1, 2017, 11:22am UTC](https://boards.straightdope.com/t/how-far-out-before-some-other-star-is-brighter-than-the-sun/641873/37 "2017-05-01T11:22:10Z")
I did a little data mining with the [HYG star database](http://www.astronexus.com/hyg), and our intuitions were mostly correct, with some minor surprises. Sirius is indeed the next brightest star, _almost_ no matter which direction you head. The best I found was in the direction of Barnard’s Star, 2.24 ly out. It’s almost opposite the direction of Sirius, but as said, Sirius is so much brighter than Sol that it outshines it as soon as you get a little distance. As best I can tell, there’s no direction where Sol is the brightest star and not also the closest. You just can’t get far enough away with Sirius dominating the neighborhood. > [@AHunter3](#): > > Another interesting question is “at what distance from both of them do Sirius AND the sun both fail to be the brightest stars in the sky?” As **Chronos** said, you want to head in the direction of Alpha Centauri. But you don’t get all the way there–as said above, Sol remains the closest star. Rigil Kentaurus is brighter than Sol, so you have to go less than halfway (2 ly). ---
**Author:** ![DrDeth](https://avatars.discourse-cdn.com/v4/letter/d/b487fb/32.png) [@DrDeth](https://boards.straightdope.com/u/DrDeth)\ **Post date:** [May 1, 2017, 5:14pm UTC](https://boards.straightdope.com/t/how-far-out-before-some-other-star-is-brighter-than-the-sun/641873/38 "2017-05-01T17:14:21Z")
> [@MikeS](#): > > According to the above link, an object would have to have an apparent magnitude below -4 (lower numbers mean brighter) to be visible on a clear sunny day. Some historical supernovas have indeed gotten brighter than that, most notably the one in [1006 AD.](http://en.wikipedia.org/wiki/SN_1006) Apparently, if one has excellent eyesight, and it’s dusk\* and\* you know exactly where to look, you _might_ be able to see Sirius. > **[Can You See Stars During the Daytime?](https://www.livescience.com/34335-see-stars-daytime.html)** > > Smart folks from Aristotle to Sir John Herschel have reported that stars are visible during the day from the bottoms of mine shafts and tall chimneys. Venus isnt hard to see during the day, if you know where to look. ---
**Author:** ![septimus](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/septimus/32/410_2.png) [@septimus](https://boards.straightdope.com/u/septimus)\ **Post date:** [May 2, 2017, 3:56am UTC](https://boards.straightdope.com/t/how-far-out-before-some-other-star-is-brighter-than-the-sun/641873/39 "2017-05-02T03:56:16Z")
> [@Chronos](#): > > In almost any direction, the first star to outshine the Sun is going to be Sirius. Yes. In almost any direction, [1] **Sol** (white main-seq) will be the brightest star for a while, then [2] **Sirius** (Alpha CanisMajor, white main seq.); but eventually, no matter which direction you head, [3] **Canopus** (Alpha Carinae, a bright white giant) will be brightest. Then long after Canopus has dwindled into obscurity, [4] **Alnilam** (Epsilon Orionis, the large blue supergiant star which is in the center of Orion’s belt) will be the brightest star. Maybe. **Rigel** (Beta Orionis, the blue-white supergiant that is the Hunter’s left foot) is interesting. In most directions, but not all, it will become the brightest at some point. For example, if you head for Canopus, Rigel will become the brightest after 660 light-years when you’ve left Canopus far behind. And if you head from Earth in the opposite direction, directly _away_ from Canopus, Rigel will become brightest briefly, after 225 light-years. There seems to be some controversy about the distance to **Deneb** , the blue-white supergiant in Cygnus. It is probably similar to Rigel in becoming the largest star at some point for most directions of travel from Earth. Questions: (1) Is it true that Alnilam (in the center of Orion’s belt) will eventually be the brightest star no matter in which direction you head? (2) What stars will eventually become the brightest if you head in some certain direction AND also become the brightest if you head in the OPPOSITE of that certain direction? I’ve implied that Sol, Sirius, Canopus, Alnilam, Rigel and probably Deneb all satisfy this. Are there any others? ---
**Author:** ![septimus](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/septimus/32/410_2.png) [@septimus](https://boards.straightdope.com/u/septimus)\ **Post date:** [May 2, 2017, 4:21am UTC](https://boards.straightdope.com/t/how-far-out-before-some-other-star-is-brighter-than-the-sun/641873/40 "2017-05-02T04:21:00Z")
> [@septimus](#): > > Yes. In almost any direction, … > [4] **Alnilam** (Epsilon Orionis, the large blue supergiant star which is in the center of Orion’s belt) will be the brightest star. Maybe. > … > There seems to be some controversy about the distance to **Deneb** , the blue-white supergiant in Cygnus. Using Wikipedia’s values, Deneb is 800 parsecs away and has a whopping -8.38 absolute magnitude. This is very different from the HYG data. With Wikipedia’s numbers, it is Deneb rather than Alnilam that dominates the sky at some point (once you get far enough away from Canopus) almost no matter which direction you travel. [Previous page](https://boards.straightdope.com/t/how-far-out-before-some-other-star-is-brighter-than-the-sun/641873.md?page=1) [Next page](https://boards.straightdope.com/t/how-far-out-before-some-other-star-is-brighter-than-the-sun/641873.md?page=3)