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How much brighter than Sirius would the Betelgeuse supernova be in your sky if it reached a maximum luminosity?
Wiki User
∙ 13y ago
The supernova would be so much brighter that it's hard to compare, at least 10 magnitudes brighter then Sirius. It would probably be about the same brightness as the full moon in the sky.
Wiki User
∙ 13y ago
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How long would it take to get to betelgeuse in a spaceship?
That depends on the speed of the spaceship. If it were traveling at the speed of light, which is the maximum speed that any object can reach, it would take 640 years to get there.
Is a supernova more luminious than a nova?
An object further away will appear less bright than the same object closer to us. However, a supernova can emit the same brightness as our Sun does in it's whole lifetime, in a very short period of time - a nova on the other hand, at maximum brightness is only about 100,000 times that of the Sun.
What observations characterize solar maximum?
Basically, a maximum of sunspots.
Sunspots are most numerous in the sun in solar maximum or solar minimum?
Solar Maximum
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maximum: 36 degrees C minimum: -123 degrees C
What can the maximum brightness of a supernova be compared to what?
There aren't really any comparisons to be made to a supernova. Let's try one; a supernova is as much brighter than the Sun is as the Sun is to a flashlight. A supernova will release as much energy in an hour as a regular star does in its entire 10-billion year life.
Is there any way you can determine if Betelgeuse has gone supernova earlier this month?
The only way we'll ever know if Betelgeuse has "gone supernova" is when we see it. Of course, by the time we see it, the event will actually have happened some 640 years earlier, because that's how long its light takes to reach our eyes. Despite being only about 10 million years old (young, by stellar standards,) Betelgeuse is very late in its life cycle. Astronomers estimate in has about a million years left, maximum. Of course, it may already have experienced its supernova; we just don't know yet because when we see Betelgeuse, we're seeing it as it appeared in approximately the year 1375.
Why does a type Ia supernova make a better indicator of distance than a type II supernova?
Type Ia supernovae [See Link] follow a characteristic light curve. This luminosity is generated by the radioactive decay of certain elements. The peak luminosity of the light curve was believed to be consistent across Type Ia supernovae as having a maximum absolute magnitude of about -19.3. This would allow them to be used as a secondary "standard candle" [See Link] to measure the distance to their host galaxies
In which constallation there are maximum no of bright stars?
The answer is not very specific; what threshold are you willing to accept as "bright"? Brighter than 1m? Brighter than 2m?
How do you measure the distance to a cepheid?
Cepheids have a certain relationship between their period, and their absolute luminosity. Thus, their absolute luminosity can be determined. Comparing this with their apparent luminosity allows us to calculate their distance.Cepheids have a certain relationship between their period, and their absolute luminosity. Thus, their absolute luminosity can be determined. Comparing this with their apparent luminosity allows us to calculate their distance.Cepheids have a certain relationship between their period, and their absolute luminosity. Thus, their absolute luminosity can be determined. Comparing this with their apparent luminosity allows us to calculate their distance.Cepheids have a certain relationship between their period, and their absolute luminosity. Thus, their absolute luminosity can be determined. Comparing this with their apparent luminosity allows us to calculate their distance.
What is the relationship between a Supernova and a Black whole?
It is speculated that a supernova (exploding star), after its reaching its maximum expansion, then collapses into itself, forming an incredibly dark and powerful gravitational force known as a black hole.
How long would it take to get to betelgeuse in a spaceship?
That depends on the speed of the spaceship. If it were traveling at the speed of light, which is the maximum speed that any object can reach, it would take 640 years to get there.
Is a supernova more luminious than a nova?
An object further away will appear less bright than the same object closer to us. However, a supernova can emit the same brightness as our Sun does in it's whole lifetime, in a very short period of time - a nova on the other hand, at maximum brightness is only about 100,000 times that of the Sun.
Which is brightest to the naked eye Venus or Jupiter?
It depends. As of March 2012, Venus is significantly brighter than Jupiter. However, Venus passed its maximum brightness around the beginning of March and will be getting dimmer.
Will the sun go supernova in 2012?
No. Our sun is to small to become a supernova. It will become a red giant and then turn into a white dwarf. This will take billions of years to occur. The sun is 5 billion years old. It will take another 5 billion years before this happens. So first of all it never will go supernova and the only change major change in the sun will be in 5,000,000,000 years. Long after your gone. you may be thinking of the solar cycle where the sun will be start a solar maximum in 2012 when more sunspots will occur but besides that you'll never notice unless your an astronomer.
What happens to the cut off voltage if the brightness of the light is increased in a photoelectric cell?
The cutoff voltage depends on the maximum kinetic energy of the emitted electrons. The brighter the light the more photons released. which means more electrons released. each photon will release an electron with the same maximum kinetic energy whether the light is bright or dim. therefor the cutoff voltage remains the same if the brightness is increased
When a minimum is reflected over the x-axis it becomes?
A maximum!A maximum!A maximum!A maximum!
