NGC 7129 - 15.3.2023 at 23.32 - 16.3.2023 at 00.03 Janakkala, Tervakoski Observation number 113517

• Observation target
• • Deep space object
• Designation
• • NGC 7129
• Constellation
• • Cepheus
• Darkness
• • Good

• Seeing
• • Good
• Nebulae
• • Reflection nebula

    Reflection nebula is gas only lit up by nearby stars. It should not be mix up with emission nebula, where hot stars nearby cause the gas glow. But then reflection nebulae are visible in the same areas with emission nebulae. The appearance of reflection nebulae is irregular, and many of them need bigger instruments to be visible.

     

    

    Reflection nebulae are glowing blue around the stars of Pleyades. Image Juha Parvio.

     

    

    The blue glowing reflection nebula NGC 1333 around the bright star is in Perseus. Image Timo Inkinen.

     

    

    The bluish reflection nebula NGC 2023 is located lower left from the Horsehead Nebula. The Horsehead Nebula itself is a dark nebula in the front of red emission nebula IC 434. In the left side there is NGC 2024 aka Flame Nebula. Image Samuli Vuorinen.

     

    

    NGC 7538 in Cepheus is a combination of reflection and emission nebula. Image Timo Inkinen.

     

    

    Rflection nebulae (LBN 550, 552 and 555) and dark nebulae (LDN 1228) in Cepheus. Image Juha Kepsu.

     

    

    Reclection nebula vdB 141 in Cepheus. Image Tero Turunen.

Vaonis Vespera

190 images

Observation duration 31 min

Exposure 10s

Gain 20db