NGC 6992, NGC 6960 - 10.10.2022 at 22.51 - 10.10.2022 at 23.53 Helsinki Observation number 110824

• Observation target
• • Deep space object
• Designation
• • NGC 6992, NGC 6960
• Constellation
• • Cygnus

• Nebulae
• • Emission nebula

    In an emission nebula the hot stars nearby cause the gas glow. This should not mix with reflection nebula, where the gas is only lit up by nearby stars.

    The appearance of a gas nebula is irregular, and the fainter parts of it need bigger instruments to be visible.

     

    

    Emssion nebulae in Cepheus. The bigger part is composed of the nebulae Cederblad 214 (Ced214) and NGC 7822. The lower round nebula is called Sharpless 170 (Sh2-170). Image J-P Metsävainio.

     

    

    The Orion nebula. Image Samuli Vuorinen.

     

    

    In this 4-degree-field there are emission nebulae Sh2-157, Sh2-158, Sh2-159, Sh2-161 and Sh2-162 (or NGC 7635 aka Bubble Nebula) and open clusters M52 and NGC 7510. Image Juha Kepsu.

     

    

    NGC 281 aka Pacman Nebula. The object is in Cassiopeia. Image J-P Metsävainio.

     

    

    NGC 896 in Cassiopeia is the tip of Heart Nebula (IC 1805). Image Timo Inkinen.

  • Supernova remnant

    Supernova remnant is the remnant of the big star died in supernova explosion. The supernova remnants are quite irregularly shaped. Rather many of them ring-like strusture.

    The moderate big instruments and possibly special filters are needed to see supernova remnants.

     

    

    The Crab Nebula was born in a star explosion in  1054. This is the easiest supernova remnant in the sky to observe. Image Tero Hirvikoski.

     

    

    The supernova remnant Simesis 147 is in Taurs and Auriga. Image J-P Metsävainio.

     

    

    The Veil Nebula in Cygnus is wide-area supernova remnant in the sky. There is a detailed image of the boxed area. Image J-P Metsävainio.

     

    

    This detail of Veil Nebula is known as Pickering's Triangle. Image J-P metsävainio.

     

    

    A strip of Veil Nebula. Image Rauno Päivinen.

Stand: iOptron CEM60

Image tube and camera: Sky-Watcher 80ED pro-series + Sky-Watcher 0.85x shortener/smoother + ZWO ASI071MC Pro

Filter: Optolong L-eXtreme

Tracking tube and camera: Orion ShortTube 80mm + ZWO ASI224MC

Engine focuser: ZWO EAF

As imaging software I use: NINA - Nighttime Imaging 'N' Astronomy 2.0, PHD2

Image calibration, stacking and processing: PixInsight 1.8.9-1