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NGC 2403

Галактика в созвездии Жирафа, входящая в группу М 81. Была открыта Уильямом Гершелем 1 ноября 1788 года.

Галактика NGC 2403 входит в состав группы галактик M81. Помимо NGC 2403 в группу также входят ещё 40 галактик.

Снимал 1 января - в окнах между северным сиянием. В сумме около 9 часов.

Телескоп, объектив:
Sky-watcher 200PDS
Камера:
ZWO ASI 294 MM Pro
Монтировка:
МТ-120
Телескоп-гид:
Orion 80/400
Камера-гид:
ZWO Asi 662mc

Софт:
DeepSkyStacking, Pixinsight
Аксессуары:
Starizona 0.75 Nexus Reducer, ZWO EFW, ZWO EAF

Экспозиция:
26 x 300 ISO/Gain: 120 - R
21 x 300 ISO/Gain: 120 - G
21x300 ISO/Gain: 120 - B
38x300 ISO/Gain: 120 - Ha

Зелёная зона засветки
деревня Новая Дорога, Россия

https://deepskyhosting.com/eHUWJea

www.group-telegram.com/es/astrodaybook.com/335

220 viewsJan 5 at 13:08

group-telegram.com/astrodaybook/335

Create: 2025-01-05
Last Update: 2025-01-24 16:57:26

NGC 2403

Галактика в созвездии Жирафа, входящая в группу М 81. Была открыта Уильямом Гершелем 1 ноября 1788 года.

Галактика NGC 2403 входит в состав группы галактик M81. Помимо NGC 2403 в группу также входят ещё 40 галактик.

Снимал 1 января - в окнах между северным сиянием. В сумме около 9 часов.

Телескоп, объектив:
Sky-watcher 200PDS
Камера:
ZWO ASI 294 MM Pro
Монтировка:
МТ-120
Телескоп-гид:
Orion 80/400
Камера-гид:
ZWO Asi 662mc

Софт:
DeepSkyStacking, Pixinsight
Аксессуары:
Starizona 0.75 Nexus Reducer, ZWO EFW, ZWO EAF

Экспозиция:
26 x 300 ISO/Gain: 120 - R
21 x 300 ISO/Gain: 120 - G
21x300 ISO/Gain: 120 - B
38x300 ISO/Gain: 120 - Ha

Зелёная зона засветки
деревня Новая Дорога, Россия

https://deepskyhosting.com/eHUWJea

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Telegram | DID YOU KNOW?

Date: 2025-01-24|

Since its launch in 2013, Telegram has grown from a simple messaging app to a broadcast network. Its user base isn’t as vast as WhatsApp’s, and its broadcast platform is a fraction the size of Twitter, but it’s nonetheless showing its use. While Telegram has been embroiled in controversy for much of its life, it has become a vital source of communication during the invasion of Ukraine. But, if all of this is new to you, let us explain, dear friends, what on Earth a Telegram is meant to be, and why you should, or should not, need to care. At its heart, Telegram is little more than a messaging app like WhatsApp or Signal. But it also offers open channels that enable a single user, or a group of users, to communicate with large numbers in a method similar to a Twitter account. This has proven to be both a blessing and a curse for Telegram and its users, since these channels can be used for both good and ill. Right now, as Wired reports, the app is a key way for Ukrainians to receive updates from the government during the invasion. On December 23rd, 2020, Pavel Durov posted to his channel that the company would need to start generating revenue. In early 2021, he added that any advertising on the platform would not use user data for targeting, and that it would be focused on “large one-to-many channels.” He pledged that ads would be “non-intrusive” and that most users would simply not notice any change. Right now the digital security needs of Russians and Ukrainians are very different, and they lead to very different caveats about how to mitigate the risks associated with using Telegram. For Ukrainians in Ukraine, whose physical safety is at risk because they are in a war zone, digital security is probably not their highest priority. They may value access to news and communication with their loved ones over making sure that all of their communications are encrypted in such a manner that they are indecipherable to Telegram, its employees, or governments with court orders. As a result, the pandemic saw many newcomers to Telegram, including prominent anti-vaccine activists who used the app's hands-off approach to share false information on shots, a study from the Institute for Strategic Dialogue shows.
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