nyancotan https://blog.hatena.ne.jp/nyancotan/ nyancotan's diary 天体写真 in Hokkaido https://nyancotan.hatenadiary.com/ 新星・超新星 SN 2025ahqr in M108 discovered by ZTF 発見の報は・・ 2025ahqr (= ZTF25acepvuo) (= PS25irr) discovered 2025/11/23.548 at R.A. = 11h11m25s.977, Decl. = +55°40'29".77 Mag 18.5:12/19 (18.1:11/27), Type Ia-02cx (z=0.002328) (zhost=0.002322) (host M108) (References: AstroNote 2025-345, おおぐま座 です。 さて今日は暗くなる頃から猛吹雪と… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fnyancotan.hatenadiary.com%2Fentry%2F2025%2F12%2F26%2F081322" title="メシエ天体に超新星 in M108 &amp; ホワイトアウト - nyancotan&#39;s diary 天体写真 in Hokkaido" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> https://cdn-ak.f.st-hatena.com/images/fotolife/n/nyancotan/20251226/20251226080700.jpg Hatena Blog https://hatena.blog 2025-12-26 08:13:22 rich https://nyancotan.hatenadiary.com/entry/2025/12/26/081322 1.0 100%