Re: Multi star guiding with PHD2 #EXOS2 #astrophotography #CloudyNights


Dave Cherry
 

Apologies Walter

Must have had one too many scotches!

Wong guy, wrong thread

 

Still.... what you say ,, I concur 😊

 

 

Me bad

 

Dave C

 

 

 

Sent from Mail for Windows 10

 

From: Walter Vinci
Sent: 30 March 2021 21:58
To: MAIN@ESPMC-Eight.groups.io
Subject: [ESPMC-Eight] Multi star guiding with PHD2 #EXOS2 #astrophotography #CloudyNights

 

Hi All,

You might be already aware of this, but latest PHD2 build enables multi star guiding. There is a long thread on cloudy nights
https://www.cloudynights.com/topic/743080-phd2-adds-multi-star-guiding/
I just wanted to mention it here since I believe it is especially relevant for weight-capable but entry level mounts like the exos2. my experience so far with my exos2 is that it needs to be guided aggressively. I typically have best rms with guiding exposures of 1s, despite picking up a lot of seeing fluctuations. Multi star guiding should allow for a more accurate guiding with very short exposures by averaging out a lot of seeing (three times  smaller rms due to seeing with nine guiding stars). Hopefully this new functionality allows to push further the limits of the exos2 for astrophotography.

I will try it this week. Let me know how it works for you,

Walter



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Walter Vinci

ES EXOS2-GT PMC-Eight
ES ED80
Starfield 0.8 Field Flattener/Reducer.
ZWO ASI290mm-mini & Orion 50mm Guide Scope
Canon EOS Rebel SL1
SharpCap, APT, PHD2, SiriL, Stellarium

 


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Scopes: Sky Watcher 200PDS, Skywatcher 72ED
Mount: Explore Scientific PMC8 EXO2
Cameras: ASI 294MCPRO Coooled, Altair guide cam + 50mm scope
Software: Sharpcap Pro ,PH2, Stelarium Startools

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