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Astrogate

🌟 آشنایی با بوئوتس، چوپان آسمانی

بهار در نیم‌کره شمالی، زمان مناسبی برای جستجوی صورت فلکی بوئوتس است که اغلب به عنوان "چوپان" شناخته می‌شود. بوئوتس یکی از صورت‌های فلکی با ارتباط کشاورزی است. آسمان شب پر از حیوانات مزرعه‌ای مانند گاو نر (ثور)، قوچ (حمل) و بز دریایی (جدی) است. بوئوتس اغلب به عنوان یک چوپان یا شخم‌زننده تصویر می‌شود که گاوهای دب اکبر را در اطراف قطب هدایت می‌کند. این صورت فلکی میزبان آرکتوروس، چهارمین ستاره درخشان در آسمان شب است که یک غول نارنجی است. بوئوتس از هر دو نیم‌کره قابل مشاهده است و در نیم‌کره جنوبی نزدیک به افق شمالی ظاهر می‌شود.

🔭 برای اطلاعات بیشتر، مقاله‌ی کامل را در Sky & Telescope بخوانید:
👉 آشنایی با بوئوتس، چوپان آسمانی

📝 گردآوری و ترجمه توسط پویا باپیرآقایی، فارغ‌التحصیل کارشناسی زمین‌شناسی از دانشگاه تهران.

🖇️ Astrogate_ut

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136 viewsMay 25 at 16:49

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Create: 2025-05-25
Last Update: 2025-06-26 01:26:13

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ASTROGATE_UT Telegram Group Telegram | DID YOU KNOW?

Unlimited members in Telegram group now

Telegram has made it easier for its users to communicate, as it has introduced a feature that allows more than 200,000 users in a group chat. However, if the users in a group chat move past 200,000, it changes into "Broadcast Group", but the feature comes with a restriction. Groups with close to 200k members can be converted to a Broadcast Group that allows unlimited members. Only admins can post in Broadcast Groups, but everyone can read along and participate in group Voice Chats," Telegram added.

Telegram auto-delete message, expiring invites, and more

elegram is updating its messaging app with options for auto-deleting messages, expiring invite links, and new unlimited groups, the company shared in a blog post. Much like Signal, Telegram received a burst of new users in the confusion over WhatsApp’s privacy policy and now the company is adopting features that were already part of its competitors’ apps, features which offer more security and privacy. Auto-deleting messages were already possible in Telegram’s encrypted Secret Chats, but this new update for iOS and Android adds the option to make messages disappear in any kind of chat. Auto-delete can be enabled inside of chats, and set to delete either 24 hours or seven days after messages are sent. Auto-delete won’t remove every message though; if a message was sent before the feature was turned on, it’ll stick around. Telegram’s competitors have had similar features: WhatsApp introduced a feature in 2020 and Signal has had disappearing messages since at least 2016.