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 AT2025abao (= Nova M31 2025-10a?) (= MASTER OT J003848.65+404607.5) (= TCP J00384865+4046079), TNS discovered 2025/10/17.480 by Koichi ItagakiFound in M31 at R.A. = 00h38m48s.620, Decl. = +40°46'08".30Located 2677".0 west and 1801".0 south of the center of M31 (Klaus Wenzel image) (Klaus Wenzel imag… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fnyancotan.hatenadiary.com%2Fentry%2F2025%2F11%2F06%2F075025" title="M31 に「新星 2025 - 10a」光度 15等級 - 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/20251106/20251106074024.jpg Hatena Blog https://hatena.blog 2025-11-06 07:50:25 rich https://nyancotan.hatenadiary.com/entry/2025/11/06/075025 1.0 100%