9 measurements spanning 8 days, net +30. Dots are measurements; the straight line between them is drawn to join them, not to claim we know the path taken in between — snapshots are recorded only when a count changes, so gaps mean “no change observed”, never “interpolated”. The vertical axis spans 15,197–15,236 and does not start at zero.
Measurement log — every subscribers count we have recorded
Measured (UTC)
Subscribers
Change
14 Aug 2026, 05:16
15,231
+11
12 Aug 2026, 19:47
15,220
-2
11 Aug 2026, 18:32
15,222
+20
10 Aug 2026, 14:55
15,202
-12
9 Aug 2026, 11:51
15,214
-12
8 Aug 2026, 10:55
15,226
+6
7 Aug 2026, 09:12
15,220
+19
6 Aug 2026, 11:00
15,201
no change
6 Aug 2026, 10:59
15,201
first reading
Engagement
28 posts held, back to 23 July 2026 — the reader has not yet reached the start of this channel’s public history, so older posts may sit further back, unread. Read across 22 pagesof Telegram’s post history, 20 posts per page.
ERR · 30 days
9.87%
avg views ÷ 15,231 subscribers
Avg views / post
1,500
28 posts measured
Reaction rate
1.35%
reactions ÷ views · ER floor
Posts in window
28
of 28 held
ERR is average views per post over the last 30 days divided by subscribers, the definition TGStat uses, so this figure is comparable with the one you will see elsewhere. It falls structurally as a channel grows: a high ERR on a small channel and a low one on a large channel describe reach mathematics, not quality. We publish the figure and the sample it came from and pass no verdict on it.
ER is defined industry-wide as (forwards + reactions + comments) ÷ views— note the denominator is views, not subscribers. Telegram’s public web preview carries views and reactions but not forward or comment counts, so the reaction rate above is the reactions term only and is therefore a floor: the true ER for this channel is higher by an amount we have not measured and will not estimate.
What these figures were computed from
Window
Rolling 30 days · latest post in window 14 August 2026
Posts held
28 (23 July 2026 – 14 August 2026)
Views total
42,088
Reactions total
570
Forwards / comments
not exposed by the public surface — not measured, not estimated
Readings taken
15 Aug 2026, 07:35 UTC
Views are a single reading per post, taken at the time above. A post published in the last day or two is still accumulating views, which pulls the 30-day average down slightly. That is a property of the standard definition rather than a fault in it, so we keep the definition rather than “correcting” the number into something nobody can reproduce.
Precision. Telegram publishes view counts on its public widget in short form — 8.12K, 3.7M — so any reading at or above 1,000 reaches us rounded to three significant figures, and only counts below 1,000 are exact. Averages and rates derived from them are shown to the same precision rather than to the unit: a figure like 3,701,250 would assert digits nobody measured.
Reaction counts are published per emoji and rounded the same way, so a total below 1,000 is exact and a larger one is a sum that may carry a rounded component from each emoji above 1,000. Because it is a sum, it does not look rounded — read a large reaction total as three significant figures per contributing emoji rather than as the figure it prints.
What this channel posts
Photos
≈4,980
Videos
≈2,090
Links
≈234
Lifetime counters from Telegram’s own channel header, read 15 August 2026 — not the date at the top of this page, which is when the subscriber count was last read. A count marked ≈ was rounded by Telegram before we ever saw it — t.me prints these counters in full below 1,000 and to three significant figures above, so ≈142,000 means somewhere between 141,500 and 142,499.
Video runtime
5m 16s
Average length
1m 19s
Measured directly from 4 videos with a duration reading, out of the posts we hold for this channel — not this channel’s whole posting history, only the sample this register has actually read. An exact reading to the second, taken from the post itself rather than from Telegram’s own rounded chrome, so it carries no ≈ mark.
Reaction mix
570 reactions across 28 posts, in 16 distinct kinds. The most used accounts for 63.2% of them.
Every reaction kind recorded on the sample, most used first
Reaction
Count
Share
Share, drawn
❤
360
63.2%
👍
121
21.2%
💔
30
5.26%
💘
16
2.81%
💯
11
1.93%
🕊
9
1.58%
👏
8
1.40%
🤓
5
0.877%
😭
3
0.526%
🍓
1
0.175%
👌
1
0.175%
👎
1
0.175%
😴
1
0.175%
🤡
1
0.175%
🤷♂
1
0.175%
🦄
1
0.175%
No sentiment is inferred, and none should be read in. This table is ordered by count and by nothing else. Emoji do not carry stable meaning across languages or communities — 🙏 is thanks in one channel and mourning in another — so we publish which ones were pressed and how often, and pass no judgement on what an audience meant by them.
Precision. Telegram publishes reaction counts per emoji and short-forms each one — 4.34K, 1.2M — so any single kind at or above 1,000 reaches us at three significant figures, and only counts below 1,000 are exact. The shares above are ratios of those figures and carry the same error. This is also why the total here can differ slightly from a reaction total printed elsewhere on the page: both are sums of the same rounded parts, taken over samples with different edges.
Coverage. Reactions were read on 28 of the 28 sampled posts in this sample. Summed by Telegram’s own count on each post — not by adding up the per-emoji breakdown above — those same posts carry 570reactions in total: the kind of figure the paragraph above means by “a reaction total printed elsewhere on the page”.
Measured over the 28 most recent posts we hold, published 23 July 2026 to 14 August 2026, using the newest reading held for each. Telegram Stars are excluded: they are a payment, not a reaction, and they have their own section.
🌓افق رویداد #سیاهچاله یک سطح جامد نیست بلکه یک ویژگی است که حدود سیاهچاله را مشخص میکند. علت سیاه بودن #افقرویداد هم این است که هیچ پرتوی نور یا تابش دیگری نمیتواند از دام گرانش آن بگریزد.
به خاطر داشته باشید هرگز نمیتوان از افق رویداد یک سیاهچاله به عقب برگشت، ولی قوانین انیشتین هنوز در آنجا کار میکنند.
ولی در عمق بیشتر منطقهای به نام #افق_کوشی وجود، که در آنجا قوانین نسبیت انیشتین به کلی بیاعتبار میشوند!
╭…
🌓این تصویر، خورشید را در ۵ میلیارد سال آینده از روی قمر یخی مشتری با نام #اروپا نشان میدهد.
🔹پیشبینی میشود در آن روز، #یخهای این قمر به ضخامتِ ۲۰ کیلومتر در اثر گرمای شدید خورشید ذوب شده، و روی آب شناور میشوند.
🔸در حال حاضر سطح قمر اروپا پوشیده از یخ است و شواهد نشان میدهد یک #اقیانوسِ آب مایع، حدود ۲ برابر کل آب اقیانوسهای زمین، در زیر آن حبس شده است.
╭┅═ঈ🌎ঊ═┅╮
🆔 @keyhan_n1
╭┅═ঊ🌗 ঈ═┅╮
🌓عظمت هستی را نمیتوان درک کرد ولی شاید تصورات بتواند به شما کمک کند.
🔹قطر زمین ۱۲،۸۰۰ کیلومتر است، قطر خورشید تقریبا ۱۱۰ برابر قطر زمین و فاصله زمین تا خورشید ۱۰۸ برابر قطر خورشید است.
ستارهشناسان فاصله زمین تا خورشید را برابر یک واحد نجومی در نظر میگیرند.
🔸نزدیکترین ستاره با نام #پروکسیما سنتوری در فاصلهٔ ۲۷۰ هزار واحد نجومی یا ۴.۲ سال نوری از زمین قرار دارد، ۳۰ میلیون خورشید نیاز است تا فاصلهٔ بین زمین و پروک…
🌓خورشیدگرفتگی کامل در راه است/ روز در کدام نقاط زمین شب میشود؟
🔹چهارشنبه این هفته، برای اولین بار در دو سال اخیر، خورشید گرفتگی کامل در بخشهایی از #گرینلند، ایسلند، شمال اسپانیا و شمال شرقی پرتغال قابل رویت است و برای دقایقی، با ناپدید شدن کامل خورشید، آسمان برای لحظاتی تاریک میشود.
🔸این خورشیدگرفتگی در بخشهایی از اروپا، #آفریقا و آمریکای شمالی، به صورت جزئی دیده خواهد شد و در آن تنها بخشی از نور خورشید از دید پ…
🌓 دانشمندان بالاترین وضوح و شفافیت ویدئویی از سطح خورشید را تا به امروز ثبت کردهاند که ساختارهای آشفته و گردابی را با جزئیاتی بیسابقه نشان میدهد.
🔹سطح #خورشید در واقع یک سوپ پلاسمای ناپایدار و جوشان است که تا حدود ۵۵۳۸ درجه سانتیگراد گرم میشود.
╭┅═ঈ🌎ঊ═┅╮
🆔 @keyhan_n1
╭┅═ঊ🌗 ঈ═┅╮
🌓سحابی سراسب در فاصله ۱۵۰۰ سال نوری و در صورت فلکی شکارچی واقع شده است.
این سحابی یک سحابی تاریک است و با تلسکوپهای معمولی قابل رویت نیست.
🔹از آنجا که ما تاریخ ۱۵۰۰ سال قبل این #سحابی را مشاهده میکنیم، ممکن است هم اکنون شکل واقعی این سحابی با چیزی که ما مشاهده میکنیم بسیار متفاوت باشد.
╭┅═ঈ🌎ঊ═┅╮
🆔 @keyhan_n1
╭┅═ঊ🌗 ঈ═┅╮
🌓تنها ۴ قرن پیش بسیاری از مردم معتقد بودند ما در جهانی زندگی میکنیم که زمین در مرکز آن واقع شده، و تمام ستارگان به دور آن میچرخند.
🔹با پیشرفت علم اکنون دریافتیم که ما دور از مرکز هر چیزی در جهان هستیم، ما در دریایی از ستارگان در کهکشان راه شیری غرق شده و در مکان خاصی از این کهکشان قرار نداریم.
🔸ما در اطراف یک ستارهٔ معمولی، در حاشیه یک کهکشان با بیش از میلیاردها #ستاره مانند خورشید قرار داریم.
🔹این برای ما افخا…
🌓دو جهان در کنار یکدیگر
🔹سمت چپ بخشی از ماده تاریک در جهان را نشان میدهد این ماده قابل رویت نیست و فقط از طریق آثار گرانشی روی #اجرام دیگر شناخته میشود. #دانشمندان معتقدند بیش از ۸۰ درصد جرم جهان از ماده تاریک بوجود آمده است.نقشه ماده ی تاریک براساس اطلاعات مشاهده شده ی #دانشمندان از جهان شبیه سازی شده و در آن کهکشانها در میان الیافی از مواد تاریک محصور شدهاند.
🔸تصویر سمت راست نقشه ی انشعاب نورونهای مغز انسان ر…
🌓مدل جدید ناسا نشان میدهد زمین مانند سیبزمینی است
🔹مدل جدید #ناسا نشان میدهد زمین کاملاً کروی نیست و به دلیل توزیع نابرابر جرم، شبیه سیبزمینی با برآمدگی و گودی است (تفاوت واقعی فقط ۱۹۰ متر).
╭┅═ঈ🌎ঊ═┅╮
🆔 @keyhan_n1
╭┅═ঊ🌗 ঈ═┅╮
🌓اگر حیات #هوشمند در جهان پدیدهای معمول باشد، با قدمت ۱۳.۷ میلیارد سالهٔ جهان، ما میبایست جدیدترین تمدن باشیم.
🔸سرعت #نور جستجو برای یافتن فرازمینیها را محدود میکند. طبق قانون هابل، سیگنالهای ما هرگز نمیتواند به کهکشانهایی که در فاصلهای بیشتر از ۱۲ میلیارد سال نوری از ما قرار دارند برسند زیرا در آن مرزها، بافت فضا با سرعت نور در حال #انبساط است.
🔹اگر ما در زمان مناسب نتوانیم سیگنالهای خود را ارسال کنیم، ان…
💔14👍7❤5😭1
Showing the 12 most recent of 28 posts we hold for @keyhan_n1. View and reaction counts are the latest single reading for each post, not a live figure, and a recent post is still accumulating both. A view count marked ≈ was rounded by Telegram before we ever saw it — t.me prints views in full below 1,000 and to three significant figures above, so ≈1,200,000 means somewhere between 1,150,000 and 1,249,999. Unmarked counts are exact. Text is reproduced from the public post preview and truncated for length.
Citation-graph rank
Citation-graph rank — 507,383 of 1,480,688entries in the measured graph. A weighted position computed from the forward and mention edges below — republished posts weigh more than named mentions — and recomputed periodically, over the whole graph. Published only as this ordinal position, never as a score: a position is a fact, and a score printed beside one channel’s name would read as a verdict this register does not make. The two counts beneath stay separate for the same reason mentions are never summed with forwards anywhere else on this page — a named-by count costs nothing to manufacture. The top 100 by this measure, or how it is computed.
Forward network
Republished by
Channels on the register that have forwarded this channel's posts into their own feed.
Built only from forwarded posts we have actually read, on both sides. Coverage is early and deliberately incomplete: a missing link means we have not read the post that would prove it, never that the relationship does not exist. Counts are distinct forwarded posts observed, so they only ever go up as we read more.
Mentions
Named by 8 registered channels — every channel on the register whose own posts have named this one, by its current username or any other username it currently holds, merged from two separately captured readings of the same fact so a namer caught by only one of them is not missed and a namer both caught is not counted twice. A username this channel has since dropped is not matched — that handle may belong to someone else now, and crediting today’s namer to yesterday’s owner would misattribute it.
Named by
Channels on the register whose posts name this channel's handle.
A mention is a weaker signal than a forward and is counted separately for that reason — naming a channel is not republishing it, and a handle in a post body is easy to place deliberately. The post counts beside each row below are distinct posts in which the handle appeared, from posts we have read on both sides — the “Named by N registered channels” figure above is a different count, of distinct NAMING CHANNELS rather than posts, and is not the sum of the rows under it.
Cite this entry
A live page changes as we take new readings, so a citation should name the measurement it is based on, not just the URL. The line below cites the subscriber count as measured 14 August 2026 — this
entry's latest reading, not the date you are reading this.
“کیهان شناسی” (@keyhan_n1), 15,231 subscribers as measured 14 August 2026. Telegram Register, tgregister.com/channel/keyhan_n1.
Full measurement history, CC BY 4.0. Every reading this register holds for this entry, not just the latest one, as a dated, downloadable record: CSV · JSON. Free to use with attribution to tgregister.com. Each file carries its own generation timestamp, which is the figure to cite for exactly when the data was retrieved.