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APOD 2019 September 21 - Tulip Nebula, Sh2-101

Technical card

Dates:Sept. 3, 2019

40x300" ISO800
20x60" ISO800
Ha: 25x300" ISO1600
OIII: 15x300" ISO1600

Integration: 7.0 hours

Darks: ~20

Flats: ~40

Bias: ~100

Avg. Moon age: 4.65 days

Avg. Moon phase: 22.57%

Bortle Dark-Sky Scale: 4.00

Basic astrometry details job: 3246381

RA center: 19h 59' 48"

DEC center: +35° 27' 39"

Pixel scale: 2.516 arcsec/pixel

Orientation: 1.803 degrees

Field radius: 0.657 degrees

Resolution: 1500x1134

Locations: Hohe Wand, Wildgehege, Austria

Data source: Traveller


I really like this beautiful cosmic flower, but I can't decide if I like the crop better or the widefield.
Now, as the nights are getting longer and cooler, the images are getting better and less noisy.

Yippee!!! My "Tulip in the Swan" has become NASA's "Astronomy Picture of the Day"😃
So cool😎 already my second APOD this year. That has to be celebrated, a clear sky is forecasted tonight😄



Robert Eder
License: None (All rights reserved)



Description: crop


Description: APOD 2019 September 21

Sky plot

Sky plot


APOD 2019 September 21 - Tulip Nebula, Sh2-101, 


            Robert Eder

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