The Ha emission region SH2-129, commonly called the Flying Bat Nebula, contains the Squid Nebula, designated Ou4, a mysterious, squid-like apparition. This nebula is very faint Oiii emission, but als...

The Giant Squid Nebula cataloged as Ou4, and Sh2-129 also known as the Flying Bat Nebula, are both caught in this cosmic scene toward the royal royal constellation Cepheus. Composed with 55 hours of narrowband image data, the telescopic field of view is …

2017年9月3日 · The red (Ha Signal) is sh2-129, the flying bat nebula. The blue squid nebula (OIII signal) in this image (OU4) was discovered by the French Amateur Astrophotographer Nicolas Outters in 2011. It is very faint.

2020年10月7日 · The Giant Squid Nebula cataloged as Ou4, and Sh2-129 also known as the Flying Bat Nebula, are both caught in this cosmic scene toward the royal royal constellation Cepheus. Composed with 55 hours of narrowband image data, the telescopic field of view is 3 degrees or 6 Full Moons across.

In the late 1950-ies the American astronomer Stewart Sharpless discovered the large nebula Sh 2-129 on the 48 inch Schmidt telescope photo plates of the «Palomar Observatory Sky Survey». In 1959 he published his discovery together with 313 H-II regions in a catalogue.

2022年8月1日 · The Giant Squid Nebula in Cepheus, cataloged as Ou4, which lies within the Flying Bat Nebula, SH2-129, both in Cepheus, is extremely faint, and was not discovered until 2011, by amateur astrophotographer Nicolas Outters of France.

SH2-129 is a relatively faint emission nebula in Cepheus, a neighbor of the larger and more often imaged IC 1396. Sometimes referred to as the "Flying Bat" nebula, this region is characterized by Ha emission as well as a small, mixed emission and reflection nebula (vdB 140), seen in the lower portion of the field, just to the left of center.

The surrounding red emission nebula is part of Sh2-129, also known as the Flying Bat Nebula. At the center, commonly called the Squid Nebula, is OU4. Amateur astronomer Nicolas Outters discovered this nebula in 2011. OU4 eluded detection because it is very faint and requires deep exposures with a 3nm OIII filter.

Sh2-129星云方位 赤经 21h11.8m赤纬 +59°59’ 这是位于仙王座西南部的Sh2-129星云，因其形态又被称为“飞蝠星云”。 Sh2-129星云外侧明亮、内侧暗淡，东侧呈圆形、向西北微微延伸。

撮影メモ： ケフェウス座に見られる非常に淡い散光星雲・Sh2-129です。 大きな円形の散光星雲・ IC1396 の約4度西に位置します。 円弧状の星雲のほぼ中央に見られる2つの星を囲むように，東半分だけの半円形をしているのが特徴です。