SN 1885A (also S Andromedae) was a supernova in the Andromeda Galaxy, the only one seen in that galaxy so far by astronomers. It was the first supernova ever seen outside the Milky Way, …

SN 1885A （也稱為 仙女座S）是一顆曾於 仙女座星系 （M 31）出現的 超新星，也是目前唯一一顆在該星系被發現的超新星，以及天文學家第一次觀測到 銀河系 外的 超新星 [1]，虽然当时 …

1885年8月19日爱尔兰业余天文学家艾萨克·瓦德（Issac Ward）、爱沙尼亚Dorpat天文台的Ernst Hartwig(1851-1923)等名观测者独立发现位于仙女座星系的明亮淡红色天体----仙女座S(天文学 …

The spectral data on S Andromedae, or SN 1885A, which indicate that it was a type I supernova, are reexamined, and it is concluded that SN 1885A belongs to a supernova class distinct from …

SN 1885A（也称为仙女座S）是一颗曾于 仙女座星系 （M 31）出现的 超新星，以及第一颗被观测到位于 银河系 外的超新星。 1885年 8月19日，业余天文爱好者Isaac Ward在贝尔法斯特市（ …

自1885年以来，即使一年之中只发现了一颗超新星，字母表示法也一直被使用（例如：sn 1885a、sn 1907a等），而一次一年之内只发现一颗超新星是1947年发现的sn 1947a。1987年以前，超 …

SN 1885A is a Supernova Remnant located in the constellation of Andromeda in the northern hemisphere. SN 1885A is not a Messier Object and doesn't have a Messier Number. SN …

SN 1885A was a supernova in the Andromeda Galaxy, the only one seen in that galaxy so far by astronomers. It was the first supernova ever seen outside the Milky...

Observations by Hartwig, Wolf, Dunér and Bigourdan are used to show that SN 1885a reached M V (max) = −18.8 ± 0.5 on 17 or 18 August 1885. The lightcurve of S And is found to have …

2024年10月29日 · From the 2.6\sigma tentative detection in X-ray, our analysis shows that non-thermal emission is expected to dominate the SN 1885A emission. Comparing our results with …