Crescent Nebula

Description and Details:‍ ‍
Crescent Nebula (NGC 6888)

Blown into space by the fierce stellar winds of a massive Wolf-Rayet star, the Crescent Nebula, cataloged as NGC 6888, is a glowing shell of ionized gas in the rich starfields of Cygnus. Roughly 5,000 light-years away, this emission nebula marks a brief and violent phase in the life of a star nearing its explosive end. The nebula’s intricate arcs and filaments formed as fast, energetic winds from the central star slammed into slower material ejected earlier in its evolution, compressing the gas into the luminous, sculpted bubble seen here.

Often imaged in narrowband light, the Crescent Nebula reveals a dramatic contrast between hydrogen, oxygen, and sulfur emissions, highlighting both its delicate internal texture and chaotic outer shock fronts. These glowing tendrils trace the interaction between stellar outflows and the surrounding interstellar medium, offering a striking look at how massive stars reshape their cosmic neighborhoods long before they end as supernovae. In both science and beauty, NGC 6888 stands as a vivid reminder that even a star’s final chapters can create structures of extraordinary complexity.

Data:
Location: New Zagreb, Croatia
Dates (16 nights): 14.6.2025. - 18.6.2025. - 20.6.2025. - 22.6.2025. - 24.6.2025 - 25.6.2025. - 28.6.2025 - 29.6.2025 - 1.7.2025 - 2.7.2025. - 3.7.2025 - 22.7.2025 - 23.7.2025 - 13.8.2025 - 14.8.2025 - 15.8.2025
Telescope: SW 130PDS
Camera: ZWO ASI585MC PRO
Filter: Optolong L-Ultimate 1.25"
Mount: SkyWatcher HEQ5 Pro
Guiding: ZWO ASI120MMS + SVBONY 120MM F4

EXP: 1152x180s (57hr36min)
EXP: 661x300s (55hr05min)
Total: 112 hr 41 min

‍ ‍Name: Neven Krcmarek