M 50 and vdB87

About image
M 50 is a bright open cluster in Monoceros constellation: it has about 200 stars and is located at an approximate distance of 3000 light years.
Due to its brightness, it is a quite easy target also from my home terrace from which I obtained this image, under a Bortle 8 sky.
So I was quite surprised to see that in the botton left side of the image also the faint VdB 27nebula was recorded, in spite of a total integration time not particularly long.
The image is a crop of the original frame.
Technical data
Optic Tecnosky Apo refractor LT 130-910 with Riccardi reducer 0.75x (focal lenght 692mm, f/5.3)
Mount Skywatcher EQ8
Camera Moravian G3-16200 CCD with external filter wheel 7 positions
Filters Baader 50mm unmounted RGB
Guiding system Artesky Ultraguide 70mm
Exposure details R 40x120" bin1 -15C
G 40x120" bin1 -15C
B 40x120" bin1 -15C
Total integration 4h
Acquisition Voyager, PHD2
Processing Pixinsight 1.8, Photoshop CS5, NoiseXTerminator, BlurXterminator, StarXTerminator
SQM-L 18.2
Location Rescaldina (Italy), home terrace
Date 2/3/4 March 2025
© Roberto Marinoni 2019 - All rights reserved