NASA’s Kepler discovers ‘invisible’ world
Washington: Astronomers believe that they have found an invisible world after detecting a planet, which revolve around its orbit in irregular interval.
NASA’s Kepler spacecraft has spotted a planet that alternately runs late and early in its orbit because a second, “invisible” world is tugging on it.
This is the first definite detection of a previously unknown planet using this method. No other technique could have found the unseen companion.
“This invisible planet makes itself known by its influence on the planet we can see,” said astronomer Sarah Ballard of the Harvard-Smithsonian Centre for Astrophysics (CfA), who is the lead author on the study.
“It’s like having someone play a prank on you by ringing your doorbell and running away. You know someone was there, even if you don’t see anyone when you get outside,” she added.
Both the seen and unseen worlds orbit the Sun-like star Kepler-19, which is located 650 light-years from Earth in the constellation Lyra.
So far, astronomers don’t know anything about the invisible world
Kepler-19c, other than that it exists.
It weighs too little to gravitationally tug the star enough for them to measure its mass. And Kepler hasn’t detected it transiting the star, suggesting that its orbit is tilted relative to Kepler-19b.
“Kepler-19c has multiple personalities consistent with our data. For instance, it could be a rocky planet on a circular 5-day orbit, or a gas-giant planet on an oblong 100-day orbit,” said co-author Daniel Fabrycky of the University of California, Santa Cruz (UCSC).
The study will be published in The Astrophysical Journal.
More from India
More from World
More from Sports
More from Entertaiment
- Trump-Sharif conversation: Team Donald denies Pakistan's claims
- Aware of Chinese submarine deployment at Balochistan's Gwadar port, says Navy chief
- Like SAARC, should India boycott Pak in Heart of Asia conference?
- Hizbul commander Musa issues threats of attacks in new video
- 'Heart of Asia' Conference begins in Amritsar; Sartaj Aziz to pay a visit on Sunday
- Gujarat businessman declares highest ever black money amount – Rs 13,000 crore!
- Army proves Mamata Banerjee wrong, releases letter showing West Bengal govt knew of exercise
- Rs 14,000 crore default case: Gujarat businessman detained, says money belongs to politicians, babus
- Manohar Parrikar exposes Mamata's attempt to politicise routine Army exercise in Kolkata
- Newly-wed couple Yuvraj Singh and Hazel Keech perform `bhangra` at Goa airport – Viral video