Celestial hourglass

February 26, 2020

The latest image published February 20, 2020 from the international Gemini Observatory showcases the striking planetary nebula CVMP 1. This object is the result of the death throes of a giant star and is a glorious but relatively short-lived astronomical spectacle. As the progenitor star of this planetary nebula slowly cools, this celestial hourglass will run out of time and will slowly fade from view over many thousands of years.

Located roughly 6500 light-years away in the southern constellation of Circinus (The Compass) this astronomical beauty formed during the final death throes of a massive star. CVMP 1 is a planetary nebula; it emerged when an old red giant star blew off its outer layers in the form of a tempestuous stellar wind [1]. As this cast-aside stellar atmosphere sped outwards into interstellar space, the hot, exposed core of the progenitor star began to energize the ejected gases and cause them to glow. This formed the beautiful hourglass shape captured in this observation from the international Gemini Observatory, a facility of NSF's National Optical-Infrared Astronomy Research Laboratory.

Planetary nebulae like CVMP 1 are formed by only certain stars -- those with a mass somewhere between 0.8 and 8 times that of our own Sun [2]. Less massive stars will gently fizzle out, transitioning into white dwarfs at the end of their long lives, whereas more massive stars live fast and die young, ending their lives in gargantuan explosions known as supernovae. For stars lying between these extremes, however, the final stretch of their lives results in a striking astronomical display such as the one seen in this image. Unfortunately, the spectacle provided by a planetary nebula is as brief as it is glorious; these objects typically persist for only 10,000 years -- a tiny stretch of time compared to the lifespan of most stars, which lasts billions of years.

These short-lived planetary nebulae come in myriad shapes and sizes, and several particularly striking forms are well known, such as the Helix Nebula which is captured in this image from 2003 which combined OIR Lab facilities at Kitt Peak National Observatory with the Hubble Space Telescope. The great diversity of shapes stems from the diversity of progenitor star systems, whose characteristics can greatly influence the ensuing planetary nebula. The presence of companion stars, orbiting planets, or even the rotation of the original red giant star can help determine the shape of a planetary nebula, but we don't yet have a detailed understanding of the processes sculpting these beautiful astronomical fireworks displays.

But CVMP 1 is intriguing for more than just its aesthetic value. Astronomers have found that the gases making up the hourglass are highly enriched with helium and nitrogen, and that CVMP 1 is one of the largest planetary nebulae known. These clues together suggest that CVMP 1 is highly evolved, making it an ideal object to help astronomers understand the later lives of planetary nebulae.

Astronomical measurements have revealed the characteristics of CVMP 1's central star. By measuring the light emitted from the gas in the planetary nebula, astronomers infer that the temperature of the central star is at least 130,000 degrees C (230,000 degrees F). Despite this scorching temperature, the star is doomed to steadily cool over thousands of years. Eventually, the light it emits will have too little energy to ionize gas in the planetary nebula, causing the striking hourglass shown in this image to fade from view.

The international Gemini Observatory, comprises telescopes in the northern and southern hemispheres, which together can access the entire night sky. Similar to many large observatories, a small fraction of the observing time of the Gemini telescopes is set aside for the creation of color images that can share the beauty of the Universe with the public. Objects are chosen for their aesthetic appeal -- such as this striking celestial hourglass.
-end-
Notes

[1] Despite their name, planetary nebulae have nothing to do with planets. This misnomer originates from the round, planet-like appearance of these objects when viewed through early telescopes. As telescopes improved, the striking beauty and stellar origin of planetary nebulae became more obvious, but their original name has persisted.

[2] Which in turn implies that our own Sun will form a planetary nebula after burning through its hydrogen fuel, around 5 billion years from now.

More information

NSF's National Optical-Infrared Astronomy Research Laboratory, the US center for ground-based optical-infrared astronomy, operates the international Gemini Observatory (a facility of NSF, NRC-Canada, CONICYT-Chile, MCTI-Brazil, MCTIP-Argentina, and KASI-Republic of Korea), Kitt Peak National Observatory (KPNO), Cerro Tololo Inter-American Observatory (CTIO), the Community Science and Data Center (CSDC), and the Vera C. Rubin Observatory. It is managed by the Association of Universities for Research in Astronomy (AURA) under a cooperative agreement with NSF and is headquartered in Tucson, Arizona. The astronomical community is honored to have the opportunity to conduct astronomical research on Iolkam Du'ag (Kitt Peak) in Arizona, on Maunakea in Hawai'i, and on Cerro Tololo and Cerro Pachón in Chile. We recognize and acknowledge the very significant cultural role and reverence that these sites have to the Tohono O'odham Nation, to the Native Hawaiian community, and to the local communities in Chile, respectively.

Contacts

Peter Michaud
NewsTeam Manager
NSF's National Optical-Infrared Astronomy Research Laboratory
Gemini Observatory, Hilo HI
Desk: +1 808-974-2510
Cell: +1 808-936-6643
Email: pmichaud@gemini.edu

Association of Universities for Research in Astronomy (AURA)

Related Nebula Articles from Brightsurf:

Stars and skulls: New ESO image reveals eerie nebula
This ethereal remnant of a long dead star, nestled in the belly of The Whale, bears an uneasy resemblance to a skull floating through space.

Scientists detect crab nebula using innovative gamma-ray telescope
The prototype Schwarzschild-Couder Telescope (SCT)--developed by scientists at the Columbia University in collaboration with researchers from other institutions--is part of an international effort, known as the Cherenkov Telescope Array (CTA), which aims to construct the world's largest and most powerful gamma-ray observatory, with more than 100 similar telescopes in the northern and southern hemispheres.

On the origin of massive stars
This scene of stellar creation, captured by the NASA/ESA Hubble Space Telescope, sits near the outskirts of the famous Tarantula Nebula.

Astrophysicists link brightening of pulsar wind nebula to pulsar spin-down rate transition
Astrophysicists have discovered that the pulsar wind nebula (PWN) surrounding the famous pulsar B0540-69 brightened gradually after the pulsar experienced a sudden spin-down rate transition (SRT).

Hubble celebrates its 29th birthday with unrivaled view of the Southern Crab Nebula
This incredible image of the hourglass-shaped Southern Crab Nebula was taken to mark the NASA/ESA Hubble Space Telescope's 29th anniversary in space.

Lifting the veil on star formation in the Orion Nebula
Writing in 'Nature', an international research team including astronomers from Cologne describe their discovery that stellar wind from a newborn star in the Orion Nebula is preventing more stars from forming nearby.

Hubble reveals cosmic Bat Shadow in the Serpent's Tail
The NASA/ESA Hubble Space Telescope has captured part of the wondrous Serpens Nebula, lit up by the star HBC 672.

Ultra-close stars discovered inside a planetary nebula
An international team of astronomers have discovered two stars in a binary pair that complete an orbit around each other in a little over three hours, residing in the planetary nebula M3-1.

Stars vs. dust in the Carina Nebula
The Carina Nebula, one of the largest and brightest nebulae in the night sky, has been beautifully imaged by ESO's VISTA telescope at the Paranal Observatory in Chile.

Discovery of a structurally 'inside-out' planetary nebula
The Instituto de AstrofĂ­sica de AndalucĂ­a (IAA-CSIC) in Spain, the Laboratory for Space Research (LSR) of the University of Hong Kong (HKU), and an International team comprising scientists from Argentina, Mexico and Germany have discovered the unusual evolution of the central star of a planetary nebula in our Milky Way.

Read More: Nebula News and Nebula Current Events
Brightsurf.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.