It was just before moon set behind the hill. Moon was deformed flat due to differential atmospheric refraction. Earthlight was visible. South is up, and west is to the left. I was in southern hemisphere.

equipment: Takahashi FSQ-106ED, F3 Reducer 0.6x, and EOS 5D-SP3, modified by Seo-san on ZWO AM5 equatorial mount on the genuine tripod without autoguiding

exposure: 1 second at ISO 200 and f/3.0

site: 2,434m above sea level at lat. 24 39 52 south and long. 70 16 11 west near Cerro Armazones in Sierra Vicuña Mackenna in Coast Range of Chile

Ambient temperature was 15 degrees Celsius or 59 degrees Fahrenheit. Wind was mild. Sky was dark, and SQML was 21.54 at the night.

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Discovered by Mr. Lower and his son, Charles, in 1939. It is a rather faint emission nebula (surface brightness of about 10th magnitude) and is out-shown by the other stunning nebulae in the same constellation, Orion.

Optic: Sharpstar 90mm f/5.6 Askar FRA500
Mount: Ioptron CEM60 HP
Camera: QSI 583wsg
Filters: 31mm unmounted Astrodon gen. 2
Frames: Ha 3nm: 18X600sec - RGB 4X600sec each Bin1 -25°
Autoguider: ZWO ASI290MM mini on ZWO 30 F/4, Phd guiding
Processing: Pixinsight, Photoshop
NINA automation

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Nikon D810a and Rokinon 135mm f2 lens. 2 panel mosaic.
Reprocess of old data from 2018.

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Taurus molecular cloud (TMC-1) and Galactic Cirri
Credit: Giuseppe Donatiello

(superstack 135mm and 200mm arrays)

Tags:   TMC-1 Taurus Taurus Molecular Cloud galactic cirri galactic cirrus cloud

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