What type of star is RS Puppis?
Cepheid variable star
RS Puppis (or RS Pup) is a Cepheid variable star around 6,000 ly away in the constellation of Puppis. It is one of the biggest and brightest known Cepheids in the Milky Way galaxy and has one of the longest periods for this class of star at 41.5 days.
Is Puppis a star?
Puppis, (Latin: “Stern”) constellation in the southern sky at about 8 hours right ascension and 30° south in declination. Its brightest star is Zeta Puppis, the nearest and brightest blue supergiant star, with a magnitude of 2.2.
What type of nebula is RS Puppis?
About the Object
| Name: | RS Puppis |
|---|---|
| Type: | Milky Way : Star : Type : Variable : Pulsating Milky Way : Nebula : Appearance : Reflection : Light Echo |
| Distance: | 6500 light years |
| Constellation: | Puppis |
| Category: | Nebulae Stars |
Where is the Puppis constellation?
southern hemisphere
The constellation Puppis, the stern, is located in the southern hemisphere of the sky. It can be seen from January through May and is visible at latitudes between 40 degrees and -90 degrees. It is a medium-sized constellation with a total area of 673 degrees.
What is a supernova light echo?
An echo on Earth results when a loud sound is heard directly and again after being reflected by a wall to the listener. Because of the longer path length taken by the redirected sound, it is heard slightly later than the original noise. A light echo works the same way.
How do Cepheid variables work?
A Cepheid variable (/ˈsɛfiːɪd, ˈsiːfiːɪd/) is a type of star that pulsates radially, varying in both diameter and temperature and producing changes in brightness with a well-defined stable period and amplitude. This discovery allows one to know the true luminosity of a Cepheid by simply observing its pulsation period.
Can you see Puppis in the northern hemisphere?
Puppis constellation is a very large constellation located in the southern hemisphere east of Canis Major in Milky Way. The constellation represents the stern of a ship. Only the brightest star is visible to all observers on the northern hemisphere, and the rest extends over the south one.
What does the Puppis constellation represent?
Puppis is a constellation located in the southern hemisphere. It represents the stern of a ship, as it was once part of a larger constellation named the Argo Navis, which represented the mythical Argonauts.
Who found the Puppis constellation?
Nicolas Louis de Lacaille
The cluster was discovered by Nicolas Louis de Lacaille in 1751. It is often called “one of the top open clusters in the sky.” It can be found 2.5 degrees to the northwest of the bright star Zeta Puppis.
What is a light echo from a star?
Hubble has captured the best sequence of images of the reverberation of light through space caused by the outburst of a star. This phenomenon is called a “light echo,” as it is reminiscent of sound waves echoing down a canyon and “revealing” its walls.
What is the most likely explanation for the light echo produced by v838?
This type of event is common in astronomy, and it’s called a light echo. Second, although we’re not exactly sure what caused the outburst, the most likely explanation is that two normal (but massive) stars merged together.