M45 - Pleiades: The Seven Sisters Star Cluster.

…lies about 444 light years away toward the constellation of the Bull (Taurus). A common legend with a modern twist is that one of the brighter stars faded since the cluster was named, leaving only six of the sister stars visible to the unaided eye. The actual number of Pleiades stars visible, however, may be more or less than seven, depending on the darkness of the surrounding sky and the clarity of the observer's eyesight.

Tech card:

Imaging telescope: Explore Scientific 127mm ED TRIPLET APO.

Imaging camera: ZWO ASI294MM-Pro.

Mount: iOptron CEM60.

Guiding camera: ZWO ASI290MM mini.

Focal reducer: Explore Scientific 0.7 Reducer/Flattener.

Accessory: ZWO OAG · ZWO EAF Electronic Auto Focuser · ZWO ASIAIR Pro · ZWO 8x 1.25" Filter Wheel (EFW).

Frames: Astrodon Gen 2 LRGB E Series: 80x120" (2h 40' ) (gain: 120.00) -20C bin 1x1.

Integration: 2h 40'

Darks: 50.

Flats: 30.

Flat darks: 30.

Avg. Moon age: 3.55 days.

Avg. Moon phase: 13.62%

Bortle Dark-Sky Scale: 4.00.

RA center: 03h46m41s.

DEC center: +24°09′32″

Pixel scale: 0.706 arcsec/pixel.

Orientation: 91.368 degrees.

Field radius: 0.943 degrees.

Re-process of my data of Feb. 15, 2021.

Imaging location: Abu Dhabi desert, UAE.

Copyright:Wissam Ayoub

This colorful shot covers a field of view about the size of the full Moon within the boundaries of the constellation Cygnus. It highlights the bright edge of a ring-like nebula traced by the glow of ionized hydrogen and oxygen gas. Embedded in the region's interstellar clouds of gas and dust, the complex, glowing arcs are sections of bubbles or shells of material swept up by the wind from Wolf-Rayet star WR 134, brightest star near the center of the frame. Distance estimates put WR 134 about 6,000 light-years away. Shedding their outer envelopes in powerful stellar winds, massive Wolf-Rayet stars have burned through their nuclear fuel at a prodigious rate and end this final phase of massive star evolution in a spectacular supernova explosion. The stellar winds and final supernovae enrich the interstellar material with heavy elements to be incorporated in future generations of stars.
Tech card:
Imaging telescope: Explore Scientific 127mm ED TRIPLET APO.
Imaging camera: ZWO ASI1600MM Pro-Cool.
Mount: iOptron CEM60.
Guiding camera: ZWO ASI290MM mini.
Focal reducer: Explore Scientific 0.7 Reducer/Flattener.
Accessory: ZWO EAF Electronic Auto Focuser · ZWO ASIAIR Pro · ZWO OAG · ZWO 8x 1.25" Filter Wheel (EFW).
Frames:
Chroma 3nm Ha: 10x600" (gain: 200.00) -20C bin 1x1.
Chroma 3nm OIII: 22x600" (gain: 200.00) -20C bin 1x1.
Total integration: 5.3 hours.
Darks: ~30.
Flats: ~30.
Flat darks: ~60.
Avg. Moon age: 18.13 days.
Avg. Moon phase: 87.56%
Bortle Dark-Sky Scale: 4.00.
Temperature: 20.00.
Pixel scale: 1.159 arcsec/pixel.
Imaging location: Abu Dhabi desert, UAE.
A re-process of my data of Dec. 3 and 4, 2020.
I tried to boost the OIII channel and tried to pull out some more details.

Copyright: Wissam Ayoub

Image Description:

M82 is also known as the Cigar Galaxy for its elongated visual appearance, it is a starburst galaxy with a superwind. In fact, through ensuing supernova explosions and powerful winds from massive stars, the burst of star formation in M82 is driving the prodigous outflow of material. The filaments extend for over 10,000 light-years. Some of the gas in the superwind, enriched in heavy elements forged in the massive stars, will eventually escape into intergalactic space. Triggered by a close encounter with nearby large galaxy M81, the furious burst of star formation in M82 should last about 100 million years or so. M82 is 12 million light-years distant, near the northern boundary of Ursa Major.

Tech card:

Imaging telescope: Teleskop Service TS 10" RC.

Imaging camera: ZWO ASI294MM-Pro.

Mount: iOptron CEM60.

Guiding camera: ZWO ASI290MM mini.

Focal reducer: Teleskop Service CCD47 0.67x reducer for RC telescopes.

Accessory: ZWO ASIAIR Pro · ZWO OAG · ZWO 8x 1.25" Filter Wheel (EFW).

Frames:

Astrodon Gen2 E-Series Tru-Balance Lum: 20x180" (gain: 120.00) -15C bin 2x2.

Astrodon Gen2 E-Series Tru-Balance Red: 20x180" (gain: 120.00) -15C bin 2x2.

Astrodon Gen2 E-Series Tru-Balance Green: 18x180" (gain: 120.00) -15C bin 2x2.

Astrodon Gen2 E-Series Tru-Balance Blue: 20x180" (gain: 120.00) -15C bin 2x2.

Chroma 3nm Ha: 10x600" (gain: 200.00) -15C bin 2x2.

Total integration: 5.6 hours.

Darks: ~50.

Flats: ~30.

Flat darks: ~30.

Avg. Moon age: 26.66 days.

Avg. Moon phase: 9.26%

Bortle Dark-Sky Scale: 4.00.

RA center: 9h 55' 52"

DEC center: +69° 40' 56"

Pixel scale: 0.707 arcsec/pixel.

Orientation: -95.583 degrees.

Field radius: 0.150 degrees.

Imaging dates: April 8, 2021, April 9, 2021.

Imaging location: Abu Dhabi desert, UAE.

Copyright: Wissam Ayoub

Image Description and Details :

Imaging telescopes or lenses: Explore Scientific 127mm ED TRIPLET APOImaging cameras: ZWO ASI1600MM Pro-CoolMounts: iOptron CEM60Guiding cameras: ZWO ASI290MM miniFocal reducers: Explore Scientific 0.7 Reducer/FlattenerSoftware: Adobe Photoshop CC · PixInsight 1.8.8 RipleyFilters: Chroma 3nm OIII · Chroma 3nm Ha · Astronomik LRGB 1.25"Accessory: ZWO EAF Electronic Auto Focuser · ZWO OAG · ZWO 8x 1.25" Filter Wheel (EFW)Dates:Oct. 14, 2020 , Oct. 15, 2020Frames:Chroma 3nm Ha: 32x600" (gain: 200.00) -10C bin 1x1Chroma 3nm OIII: 33x600" (gain: 200.00) -10C bin 1x1Astronomik LRGB 1.25": 90x30" (gain: 200.00) -10C bin 1x1Integration: 11.6 hoursDarks: ~43Flats: ~30Bias: ~100Avg. Moon age: 27.41 daysAvg. Moon phase: 5.33%Bortle Dark-Sky Scale: 4.00Temperature: 28.00Locations: UAE desert, Abu Dhabi, United Arab EmiratesData source: my own.



Copyright Information: Wissam Ayoub