The Unistellar Odyssey smart telescope made me question what stargazing means

Published

4 months ago

May 30, 2024

admin

Old versus new — The Unistellar Odyssey smart telescope made me question what stargazing means The age-old pursuit of looking at the heavens is finally getting an upgrade.

Tim Stevens – May 29, 2024 11:00 am UTC Enlarge / The Sky-Watcher HEQ5 Pro and the Unistellar Odyssey Pro.Tim Stevens reader comments 125

It’s been 300 years since Galileo and Isaac Newton started fiddling around with lenses and parabolic mirrors to get a better look at the heavens. But if you look at many of the best amateur telescopes today, you’d be forgiven for thinking they haven’t progressed much since.

Further ReadingThe $3,000 eVscope makes stargazing easy and funThough components have certainly improved, the basic combination of mirrors and lenses is more or less the same. Even the most advanced “smart” mounts that hold them rely on technology that hasn’t progressed in 30 years.

Compared to the radical reinvention that even the humble telephone has received, it’s sad that telescope tech has largely been left behind. But that is finally changing. Companies like Unistellar and Vaonis are pioneering a new generation of scopes that throw classic astronomy norms and concepts out the window in favor of a seamless setup and remarkable image quality.

But is it really stargazing if you’re looking down at your smartphone instead of up at the stars? That’s what I endeavored to find out with the help of two generations of “smart” telescopes, one old and one new, brought together during the recent solar eclipse. Old versus new

In the “old” corner is my GSO six-inch, a Newtonian reflector with a few upgrades. It’s a basic scope, on the high-end of entry-level by amateur astronomer standards, but a solid base for learning. Besides, the real money is in the mount and eyepieces. For eyepieces, I tested using a Baader Hyperion Zoom Mark IV and a Hyperion 5 mm. Advertisement

The bulk of the cost of this setup, though, is in the mount, a Sky-Watcher HEQ5 Pro. This is among the more advanced of the classic style of “smart” telescopes, an equatorial mount that, once correctly aligned (more on that in a moment), can find celestial objects and track them across the sky using a device called a SynScan 6. Enlarge / The Sky-Watcher HEQ5 Pro.Tim Stevens

The SynScan and the Sky-Watcher use a technology broadly called “GoTo,” a general term for a mount that can find celestial objects in the sky. These scopes first appeared in the late 1980s, and they’ve seen little progress since.

To find those celestial objects, you’ll generally need to know their Messier (M) or New General Catalogue (NGC) numbers, and you put them into a handheld controller that offers all the finesse of a Speak & Spell. (SynScan does make a smartphone app, but it replicates the same user experience, earning it two-star ratings on both the Apple App Store and Google Play Store.)

The total cost for a setup like this? About $2,500.

That’s a significant investment, but it’s mighty affordable compared to the $3,999 Unistellar Odyssey Pro. For that, you get a disconcertingly small telescope, a positively rudimentary-looking tripod mount, and not much else.

But if cost is an object (as it most certainly is for me), you will probably want to buy the $2,499 Unistellar Odyssey instead. Ditching the Pro designation saves you $1,500 and only costs you one feature: an eyepiece on the side, which you probably don’t want anyway.

How do you use a telescope with no eyepiece? That’s where this all starts to get complicated. Page: 1 2 3 Next → reader comments 125 Advertisement Channel Ars Technica ← Previous story Next story → Related Stories Today on Ars

Sports

Sources: Nats demote All-Star after all-nighter

Published

2 hours ago

September 21, 2024

admin

Sources: Nats demote All-Star after all-nighter

Jeff Passan, ESPNSep 21, 2024, 01:47 PM ET
Close

The Washington Nationals demoted All-Star shortstop CJ Abrams to the minor leagues after he stayed out all night at a Chicago-area casino, leaving only hours before a Friday day game against the Chicago Cubs, sources told ESPN’s Jesse Rogers.

The 23-year-old Abrams led off for the Nationals and went 0 for 3 with a walk and strikeout in Friday’s game, which started at 1 p.m. CT. He was informed of the demotion Friday night, sources said. He will be sent to West Palm Beach, home of the Nationals’ minor league complex.

Because Abrams has been with Washington for the entirety of the season, the demotion will not affect his service time. Players earn a full year of service with 172 days on the major league roster, and Abrams already has exceeded that threshold.

Abrams could, however, file a grievance through the Major League Baseball Players Association to fight for lost pay if he believes the demotion unjust. He would lose around $30,000 of his $752,000 salary for missing the season’s final week. Abrams will be arbitration-eligible this winter, entering the system for the first of four times as a Super 2.

Acquired as one of the centerpieces of the Juan Soto trade two years ago, Abrams parlayed a breakout first-half into an All-Star selection, hitting .268/.343/.489 with 15 home runs and 15 stolen bases over the Nationals’ first 89 games. He struggled significantly in the second half, slashing .203/.260/.326, and Abrams’ defense has been a weakness throughout the season.

Still, the Nationals did not intend to send him to the minor leagues until they learned of his time spent at the casino, which was first reported Friday by CHGO.

“I just want it to be known it wasn’t performance-based,” Nationals manager Dave Martinez told reporters Saturday. “It’s an internal issue. I’m not going to give specifics.”

World

At least 44 people killed in Israel strikes on Lebanon and Gaza in last 24 hours

Published

2 hours ago

September 21, 2024

admin

At least 44 people killed in Israel strikes on Lebanon and Gaza in last 24 hours

At least 44 people have been killed in Israeli strikes on Lebanon and Gaza in the last 24 hours.

A strike on the Lebanese capital Beirut killed at least 31 people including three children and seven women, the country’s health minister Firas Abiad said.

Fifteen of the 68 wounded in the attack remain in hospital.

Ali Harake, the head of the rescue team searching through the rubble, told Sky News his team is still looking for between 17 and 18 missing people – though he fears none have survived.

Follow the latest updates on the Middle East

It is understood two apartment blocks in a densely populated southern neighbourhood collapsed in the strike – the deadliest attack on Beirut in decades.

Top Hezbollah commanders are believed to have been meeting in the basement of one of the buildings.

Hezbollah has confirmed two of its senior commanders, Ibrahim Aqil and Ahmed Wahbi, died in the strike while an Israeli military spokesperson said that at least 16 Hezbollah militants were killed.

Wahbi oversaw the military operations of the Radwan special forces – a commando unit that seeks to infiltrate and carry out attacks in Israel – until early 2024. Aqil was also a top commander for the Iran-backed group.

The Palestinian militant group Hamas has described the killing of Aqil as a “crime” and a “folly”, adding Israel will “pay the price”.

Meanwhile, at least 13 people have been killed in Israeli strikes on Gaza City, according to a local report.

The strikes are believed to have hit several schools sheltering displaced people in the southern part of the city.

The strikes come after Hezbollah launched one of its most intense bombardments of northern Israel in nearly a year of fighting, largely targeting Israeli military sites.

Israel’s Iron Dome missile defence system intercepted most of the Katyusha rockets.

Hezbollah said its latest wave of rocket attacks was a response to past Israeli strikes on southern Lebanon.

It came days after mass explosions of Hezbollah pagers and walkie-talkies killed at least 37 people, including two children. Some 2,900 others were wounded in the assault which has been widely attributed to Israel.

World

Fire rips through arms depot deep inside Russia after huge Ukrainian drone attack – as Zelenskyy prepares to meet Trump

Published

2 hours ago

September 21, 2024

admin

Fire rips through arms depot deep inside Russia after huge Ukrainian drone attack - as Zelenskyy prepares to meet Trump

A fire has ripped through a Russian missile depot in the Tver region deep inside the country after it was targeted in a Ukrainian drone attack, the defence ministry in Moscow has said.

Footage shows a second Ukrainian drone attack on the southwestern Russian region of Krasnodar also triggered a fire and caused a series of explosions.

Russia’s defence ministry has claimed its forces shot down 101 Ukrainian drones over Russian territory and occupied Crimea during the overnight attacks.

The drone strikes were carried out as Ukrainian leader Volodymyr Zelenskky said he is hoping to meet Donald Trump next week when he travels to the US – where he will present US President Joe Biden with a “victory plan” in relation to the war.

Meanwhile, Ukraine’s foreign minister said Russia appears to be planning strikes on Ukrainian nuclear facilities before the winter.

Posts on local Telegram channels said a Ukrainian drone attack struck an arms depot near the town of Toropets, in Russia’s Tver region – which is about 380 kilometres (240 miles) northwest of Moscow and about 500 kilometres (300 miles) from the Ukrainian border on Saturday.

Russian authorities closed a 100-kilometre (62-mile) stretch of a highway and evacuated passengers from a nearby rail station.

The depot appeared to be just miles from a Russian weapons arsenal storing missiles, bombs and ammunition in Tver that was struck by Ukrainian drones early Wednesday, injuring 13 people and also causing a huge fire.

Meanwhile, at least 1,200 people were evacuated from Russia’s southwestern Krasnodar region after an ammunition depot and missile arsenal were struck in the second drone attack overnight, the local governor has said.

Most of those evacuated were staying with friends and relatives, Veniamin Kondratyev, the governor of Krasnodar region, said on the Telegram messaging app.

There were no immediate reports of casualties in either Tver or Krasnodar.

Ukraine warning of attacks on nuclear sites

It comes as Kyiv is urging the International Atomic Energy Agency (IAEA) and Ukraine’s allies to establish permanent monitoring missions at the country’s nuclear plants as it warns they could be targeted in Russian attacks.

“In particular, it concerns open distribution devices at (nuclear power plants and) transmission substations, critical for the safe operation of nuclear energy,” foreign minister Andriy Sybiha wrote on X.

Zelenskyy prepares for US trip

Meanwhile, the Ukrainian leader has said he plans to meet Republican presidential candidate Mr Trump on either Thursday or Friday next week.

During the trip, Mr Zelenskyy will present Mr Biden with a so-called victory plan as he hopes to bring about an end to the conflict.

The Ukrainian president has said the plan will include long-range striking capabilities and other weapons long sought by Kyiv, and will serve as the basis for any future negotiation with Russia.

He is also expected to push Washington to lift restrictions on long-range missile strikes inside Russia.

Mr Zelenskyy will attend sessions of the UN Security Council and General Assembly and also plans to meet vice president Kamala Harris, the Democratic candidate in this year’s US election, in separate meetings on 26 September.

The developments come as three sources have told Reuters that Iran did not include mobile launchers with the close-range ballistic missiles that Washington has accused Tehran of delivering to Russia for use against Ukraine.

The sources – a European diplomat, a European intelligence official and a US official – said it was not clear why Iran did not supply launchers with the Fath-360 missiles, raising questions about when and if the weapons will be operational.