IC 410 - The Tadpoles

 Posted: Apr 12th, 2021
Show astrometry on hover
NGC
IC
HD
Technical Info
Telescope/Lens: Celestron RASA 8
Camera: ZWO ASI 1600MM Pro
Mount: Skywatcher EQ8-R
Guide Scope: Lunt 500mm f/8
Guide Camera: ZWO ASI178MM
Software: Pixinsight 1.8
Exposure:
30 x 300" ISO/Gain: 0 - Baader Ha
20 x 300" ISO/Gain: 0 - Baader Oiii
20 x 300" ISO/Gain: 0 - Baader S2
White zoneLight Pollution:
 Moskva, Russia
 Apr 11th, 2021
5 h 50 m
1923
Resolution: 4725x3574 px
Scale: 3295 KB
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Comments

Very impressive for a white zone! I can't even imagine how you can get such a result with all those LED streetlights, even with narrowband filters!
13 Apr, 2021 Reply
Sharky Replied to Max_astro
Thank you! Low SNR can be overcome by increasing the total integration time, multiplied by the efficiency of the f/2 system. Fortunately, nothing interferes with this on the balcony—not a single night with suitable weather is missed. But a magnitude of 10 is probably the lower brightness limit for my setup.
13 Apr, 2021 Reply
Max_astro Replied to Sharky
F2!? What coma corrector do you have that gives such a flat field!? Or is it an aplanatic system?
13 Apr, 2021 Reply
Sharky Replied to Max_astro
This is a RASA - a Schmidt camera with a field corrected for a flat sensor.
13 Apr, 2021 Reply

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