The physical size of the object or the apparent angle it subtends on the sky.
What it found was not a nova, but one of the oddest stars in the galaxy. This image, obtained with the Advanced Camera for Surveys on February 8, 2004, is Hubble's latest view of an expanding halo of light around a distant star, named V838 Monocerotis (V838 Mon). During its outburst the star brightened to more than 600,000 times our Sun's luminosity. A brief description of the methods used to convert telescope data into the color image being presented. Watch more of Slate’s Bad Astronomy videos with Phil Plait. AURA’s Space Telescope Science Institute in Baltimore, Maryland, conducts Hubble science operations. Dubbed V838 Monocerotis—the 838 th variable star found in the constellation Monoceros, the unicorn—it’s a luminous red star, well over 20,000 times brighter than the Sun.
V838 Monocerotis V838 Monocerotis is a red variable star, which floats in the constellation of Monoceros. When the star suddenly brightened, it sent out a flash of light that moved outward, illuminating the pre-existing cloud from the inside out. The science instrument used to produce the data. A stellar flash like this had never been seen before. What caused this outburst of V838 Mon? And you'll never see this message again. Something like 20,000 light-years from Earth lies a bizarre object. The illumination of interstellar dust comes from the red supergiant star at the middle of the image, which gave off a flashbulb-like pulse of light two years ago. This image, obtained with the Advanced Camera for Surveys on February 8, 2004, is Hubble's latest view of an expanding halo of light around a distant star, named V838 Monocerotis (V838 Mon).
In reality the dust shells are not expanding at all, but it is simply the light from the stellar flash that is sweeping out into the nebula. Red supergiants are known to undergo periodic paroxysms, for example, but such things are generally not this powerful. Interstellar distances can also be measured in parsecs. A name or catalog number that astronomers use to identify an astronomical object. This gives the illusion that the dust is expanding into space faster than the speed of light. We could have 25 Hubbles up there for 25 times 25 years and still only have scratched the surface of what’s out there to see. What makes this star so weird is its recent activity.
What it found was not a nova, but one of the oddest stars in the galaxy. This image, obtained with the Advanced Camera for Surveys on February 8, 2004, is Hubble's latest view of an expanding halo of light around a distant star, named V838 Monocerotis (V838 Mon). During its outburst the star brightened to more than 600,000 times our Sun's luminosity. A brief description of the methods used to convert telescope data into the color image being presented. Watch more of Slate’s Bad Astronomy videos with Phil Plait. AURA’s Space Telescope Science Institute in Baltimore, Maryland, conducts Hubble science operations. Dubbed V838 Monocerotis—the 838 th variable star found in the constellation Monoceros, the unicorn—it’s a luminous red star, well over 20,000 times brighter than the Sun.
V838 Monocerotis V838 Monocerotis is a red variable star, which floats in the constellation of Monoceros. When the star suddenly brightened, it sent out a flash of light that moved outward, illuminating the pre-existing cloud from the inside out. The science instrument used to produce the data. A stellar flash like this had never been seen before. What caused this outburst of V838 Mon? And you'll never see this message again. Something like 20,000 light-years from Earth lies a bizarre object. The illumination of interstellar dust comes from the red supergiant star at the middle of the image, which gave off a flashbulb-like pulse of light two years ago. This image, obtained with the Advanced Camera for Surveys on February 8, 2004, is Hubble's latest view of an expanding halo of light around a distant star, named V838 Monocerotis (V838 Mon).
In reality the dust shells are not expanding at all, but it is simply the light from the stellar flash that is sweeping out into the nebula. Red supergiants are known to undergo periodic paroxysms, for example, but such things are generally not this powerful. Interstellar distances can also be measured in parsecs. A name or catalog number that astronomers use to identify an astronomical object. This gives the illusion that the dust is expanding into space faster than the speed of light. We could have 25 Hubbles up there for 25 times 25 years and still only have scratched the surface of what’s out there to see. What makes this star so weird is its recent activity.
What it found was not a nova, but one of the oddest stars in the galaxy. This image, obtained with the Advanced Camera for Surveys on February 8, 2004, is Hubble's latest view of an expanding halo of light around a distant star, named V838 Monocerotis (V838 Mon). During its outburst the star brightened to more than 600,000 times our Sun's luminosity. A brief description of the methods used to convert telescope data into the color image being presented. Watch more of Slate’s Bad Astronomy videos with Phil Plait. AURA’s Space Telescope Science Institute in Baltimore, Maryland, conducts Hubble science operations. Dubbed V838 Monocerotis—the 838 th variable star found in the constellation Monoceros, the unicorn—it’s a luminous red star, well over 20,000 times brighter than the Sun.
V838 Monocerotis V838 Monocerotis is a red variable star, which floats in the constellation of Monoceros. When the star suddenly brightened, it sent out a flash of light that moved outward, illuminating the pre-existing cloud from the inside out. The science instrument used to produce the data. A stellar flash like this had never been seen before. What caused this outburst of V838 Mon? And you'll never see this message again. Something like 20,000 light-years from Earth lies a bizarre object. The illumination of interstellar dust comes from the red supergiant star at the middle of the image, which gave off a flashbulb-like pulse of light two years ago. This image, obtained with the Advanced Camera for Surveys on February 8, 2004, is Hubble's latest view of an expanding halo of light around a distant star, named V838 Monocerotis (V838 Mon).
In reality the dust shells are not expanding at all, but it is simply the light from the stellar flash that is sweeping out into the nebula. Red supergiants are known to undergo periodic paroxysms, for example, but such things are generally not this powerful. Interstellar distances can also be measured in parsecs. A name or catalog number that astronomers use to identify an astronomical object. This gives the illusion that the dust is expanding into space faster than the speed of light. We could have 25 Hubbles up there for 25 times 25 years and still only have scratched the surface of what’s out there to see. What makes this star so weird is its recent activity.
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