Image Description and Details : Location: Upper Austria
Date taken: April 2022
Distance: 20 million light years
Diameter: 170,000 light years
Exposure: RGB each 40 x 300 sec.
Luminance: 245 x 150 sec.
H-Alpha: 45 x 900 sec
Total: 31.4 hrs

Calibration: BIAS / Flats / DarkFlats
Mount: Skywatcher EQ6-R PRO
Telescope: Lacerta Fotonewton 250/1000
Corrector: Lacerta GPU coma corrector
Filter: Antlia LRGB-V Pro
Antlia 3nm Pro H-Alpha
Camera: QHY268m @ Gain 0 / 56 at -15°C
Guiding: QHY OAG with QHY5III462c and PHD2
Software: APP / Photoshop CC

Copyright: Daniel Nimmervoll

Image Description and Details : Celestron EDGE HD 8"
Ioptron CEM60
ZWO ASI 2600MM
Baader CMOS Filters
Pleiades Pixinsight

H-alpha: 14x600" (2h 20')
H-alpha: 15x1200" (5h)
Blue: 20x180" (1h)
Blue: 15x500" (2h 5') (gain: 100.00)
Green: 20x180" (1h)
Green: 16x500" (2h 13' 20")
Red: 21x180" (1h 3')
Red: 16x500" (2h 13' 20")
Luminance: 62x500" (8h 36' 40")
Integration time: 25h 31' 20"

Copyright: David Quiles Amato

Image Description and Details :

M101 taken with a Newton 250 f/4, AZEQ6 and a ATIK ONE monochrome camera.
53 exposure hours in LRGB-Ha (38 L, 11 RGB, 4 Ha), under various Moon conditions and always polluted sky (SQM 19,7 without Moon)
But the seeing was good, allowing great resolution.
Hundreds of very far and faint galaxies can be seen in the background.
Done at 35 km North of Paris and 15 North of Roissy.


Copyright: Olivier Aguerre

Image Description and Details :

I know that M101 is a classic target, but it is so beautiful...

Telescope: 24 inch reflector; Camera: FLI PL16803. Total exposure: 19h 20 min: LHaRGB. Processing: CCDStack-Photoshop CC. Location: New Mexico



Copyright: Josep Drudis