Cape Canaveral (US), Dec 20: Jupiter and Saturn will merge in the night sky Monday, appearing closer to one another than they have since Galileo's time in the 17th century.
Astronomers say so-called conjunctions between the two largest planets in our solar system aren't particularly rare.
Jupiter passes its neighbour Saturn in their respective laps around the sun every 20 years.
But the one coming up is especially close: Jupiter and Saturn will be just one-tenth of a degree apart from our perspective or about one-fifth the width of a full moon.
They should be easily visible around the world a little after sunset, weather permitting.
Toss in the winter solstice in the Northern Hemisphere, the longest night of the year and the summer solstice in the Southern Hemisphere and this just-in-time-for-Christmas spectacle promises to be one of the greatest of Great Conjunctions.
What is most rare is a close conjunction that occurs in our nighttime sky," said Vanderbilt University's David Weintraub, an astronomy professor.
"I think it's fair to say that such an event typically may occur just once in any one person's lifetime, and I think 'once in my lifetime' is a pretty good test of whether something merits being labeled as rare or special.
It will be the closest Jupiter-Saturn pairing since July 1623, when the two planets appeared a little nearer.
This conjunction was almost impossible to see, however, because of its closeness to the sun.
Considerably closer and in plain view was the March 1226 conjunction of the two planets when Genghis Khan was conquering Asia.
Monday's conjunction will be the closest pairing that is visible since way back then.
Saturn and Jupiter have been drawing closer in the south-southwest sky for weeks. Jupiter bigger and closer to Earth is vastly brighter.
I love watching them come closer and closer to each other and the fact that I can see it with my naked eyes from my back porch! Virginia Tech astronomer Nahum Arav said in an email.
To see it, be ready shortly after sunset Monday, looking to the southwest fairly low on the horizon.
Saturn will be the smaller, fainter blob at Jupiter's upper right. Binoculars will be needed to separate the two planets.
Despite appearances, Jupiter and Saturn will actually be more than 450 million miles (730 million kilometers) apart. Earth, meanwhile, will be 550 million miles (890 million kilometers) from Jupiter.
A telescope will not only capture Jupiter and Saturn in the same field of view, but even some of their brightest moons.
Their next super-close pairing: March 15, 2080.
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Chennai (PTI): For Kate, the dream was simple -- to watch her son Fahy Noah play for the Australian team in the Junior Hockey World Cup here and visit the Taj Mahal.
But her plans, like those of many others, have been upended by the operational crisis that has hit IndiGo, India's largest domestic airline.
"I am here for the first time and India is so kind and welcoming. We were hoping to see the Taj Mahal, but with the IndiGo problems, we are a bit scared now," Kate, who has come from Brisbane, told PTI outside the Mayor Radhakrishnan Hockey Stadium here.
"One family went on a rest day and got stuck overnight. I think we will have to cancel all our travel plans now, though seeing the Taj Mahal was on my bucket list for long," she said.
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This is the first time that 24 teams are participating in the Junior Hockey World Cup, being held in Chennai and Madurai from November 28 to December 10. For most players and their families, it is their maiden trip to India. Many NRIs have also flown in to support the Indian team.
However, the widespread flight delays and cancellations have thrown schedules into chaos. IndiGo cancelled thousands of flights last week, citing regulatory changes in the pilots' flight duty and regulations norms. This resulted in lakhs of passengers getting stuck at airports across the country.
Laura, who has come from Belgium with her entire family to support her son, said they are now travelling by road.
"We are happy to be here in this beautiful country. We went to Munnar and Madurai, and now we are planning to go to Puducherry and Mahabalipuram by road," she said.
"We had taken IndiGo flights earlier, but some other families who travelled on different days got stuck and somehow managed to come back by train. So we are not flying anywhere in India now. Road travel only and then back to Brussels next week," she said.
For 87-year-old Kenyan hockey legend Avtar Singh Sohal, a four-time Olympian and a lifelong supporter of Indian hockey, the crisis was particularly distressing. He spent 12 gruelling hours at the Chandigarh airport on December 4 before finally reaching Chennai just in time for the quarterfinals.
"Our IndiGo flight was delayed by 12 hours. We were at the airport from 7 am to 7 pm. They kept giving excuses -- the aircraft has not arrived, the pilot is not available. We had no idea what was actually happening," he said.
Accompanying Sohal was 85-year-old Tarlok Singh Mandair, a former treasurer of the English Hockey Association, who had flown in from London.
"It was a horrible experience. They kept changing the timings from 12 noon to 4 pm and we finally took off at 7:20 pm. They gave us sandwiches which were not even good," Mandair recalled.
"Our return flight is also on IndiGo, but now we are exploring other options," he said.
Jujhar Singh Plaha, 86, from London, who was on the same flight, said his excitement has turned into anxiety.
"We were so excited about this trip; hockey is our first love. But this (IndiGo crisis) spoiled our mood. Now we are worried about returning because at our age, we cannot travel long distances by train or road," he said.
Jason, the father of Australian player Roger Lachlan, has had an eventful trip to India so far -- beginning with the rain in Chennai triggered by Cyclone Ditwah.
"We are from Hobart -- home of Ricky Ponting and David Boon. We arrived after a cyclone, which caused heavy rain. Now the sun is out and we are enjoying ourselves," he said with a smile.
Jason, too, has shelved all further travel plans.
"No sightseeing now. We will just eat, swim and head back. I am loving masala dosa, masala tea and curries," he said.
Some fans from Bengaluru, who had booked their flight tickets months in advance, decided not to take a risk. They opted for refunds and drove down to Chennai on Sunday to catch the semifinal.
"With flight uncertainty and trains full, we drove down. We did not want to miss India in the semis," said Vinod Chinnappa, who drove for six hours to come here.
Even officials have not been spared by the flight disruptions.
Digvijay Singh, an official of the Hockey India League franchise, waited eight hours at the Patna airport to catch a flight to Chennai.
"I did not want to miss the India-Belgium quarterfinal, so I waited. I finished all episodes of (web series) Family Man at the lounge," he said.
"I had gone to Patna from Delhi for a meeting earlier in the day and then needed to connect to Chennai," Singh said.
With the World Cup set to wrap up in two days, uncertainty about people's plans to return home looms large.
With prices of alternative flights rising and train seats nearly impossible to find, fans, officials, families and journalists are monitoring travel apps as closely as match updates.
If the situation does not improve soon, returning home could be as challenging as winning matches on the field.
