28/06/2026
The Tulip, The Crescent and WR134 (2 panel mosaic)
Full resolution highly recommended.
Astrobin Top Pic: https://www.astrobin.com/o14gt9/
The area of the sky containing The Tulip Nebula, The Crescent Nebula, and WR 134 is a dense, highly active star-forming region located within the constellation Cygnus (The Swan). Positioned along the plane of the Milky Way galaxy, this cosmic landscape spans roughly between the bright stars Sadr and Albireo. It is characterised by vast clouds of ionised gas, interstellar dust, and energetic stellar winds sculpted by massive, unstable stars.
The primary features of this stellar neighbourhood include:
The Crescent Nebula (NGC 6888): A bright emission nebula located approximately 5,000 light-years away. It is formed by the fierce stellar winds of the central Wolf-Rayet star WR 136, which collide with layers of gas previously ejected during its red giant phase.
The Tulip Nebula (Sharpless 2-101): An H II region emission nebula that resembles the silhouette of a tulip flower. Located about 6,000 light-years away, its gas glows primarily from the intense ultraviolet radiation of embedded young stars.
WR 134: A rare, highly luminous, and variable Wolf-Rayet star roughly 6,000 light-years distant. It burns at temperatures over 63,000 K and sheds its outer layers to blow a faint, distinctive, bluish bubble nebula visible in the Oxygen (O III) light spectrum.
Equipment used:
Mounts: Sky-watcher EQ3 Pro with upgraded tripod
Telescope: William Optics Redcat 51
Touptek ATR2600C Pro Cmos camera, cooled at - 10°C
Antlia ALP-T Dualband 3nm Ha & OIII 2" filter
Altair 2" Magnetic Filter Holder
ZWO EAF
Svbony SV165 guidescope
ZWO ASI120MM Mini guidecamera
Svbony SV241 Power/USB Hub
MeLE 4C quieter mini PC
Qhyccd Polemaster
Gemini 100mm Automatic Flat Panel
Software used:
Eqmod, SGP - N.I.N.A., PHD2, Stellarium, SharpCap for polar alignment
Date 23.04.2025 to 25.05.2026
Location:
Hemel Hempstead, Hertfordshire, bortle 5
Frames:
Antlia ALP-T Dualband 3nm Ha & OIII 2": 431×300″(35h 55′)
Total integration time: 35h 55′
Stacked and calibrated in AstroPixel Processor and processed in Pixinsight (with help from Blur Xterminator, Star Xterminator and Noise Xterminator) and Photoshop CC 2026
Full resolution: https://www.astrobin.com/o14gt9/
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More of my work on my website:
https://emilandronic.co.uk/