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Open PHD Guiding
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Welcome to the
Open PHD Guiding
(PHD2) forum, telescope guiding software for astro-photographers.
To get help with PHD2, please upload your log files - here's how:
How to ask for help with PHD2
.
If you are new to PHD2, we urge you to read the
documentation
and
follow these tips:
Use the forum search tools - most questions have been answered many times
Read and follow the
Best Practices Guide
Use the New-Profile-Wizard to define and manage your equipment configurations
Avoid making changes to guiding parameters without knowing exactly what they do
After you get a good calibration run and a Guiding Assistant Run, per the Best Practices, run the
Baseline Assessment
Forum guidelines for vendors
.
Mark all as read
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Stuart Taylor
, …
mj.w...@gmail.com
24
6:30 AM
guide star lost, low mass
It's COELIX, but looks like CdC does a good job too/ Michael Wiltshire UK On Sunday, 14 August
unread,
guide star lost, low mass
It's COELIX, but looks like CdC does a good job too/ Michael Wiltshire UK On Sunday, 14 August
6:30 AM
Batuhan DERELİ
,
Bruce Waddington
2
Aug 13
Sw EQ5pro and PHD2LOG and ZWO ASI AIR Detail PROBLEM
Sorry, we don't support the ASI Air products here, you should ask ZWO for help. Bruce On Saturday
unread,
Sw EQ5pro and PHD2LOG and ZWO ASI AIR Detail PROBLEM
Sorry, we don't support the ASI Air products here, you should ask ZWO for help. Bruce On Saturday
Aug 13
Richard Thomas
, …
bw_m...@earthlink.net
5
Aug 13
PHD2 fails to calibrate after meridian flip
Hi all, Thanks for the tips and advice. I was able to try a few things out last night and I think I
unread,
PHD2 fails to calibrate after meridian flip
Hi all, Thanks for the tips and advice. I was able to try a few things out last night and I think I
Aug 13
Bobby Sapovits
, …
bw_m...@earthlink.net
7
Aug 13
Dithering with APT and ZWO AM5 mount shut down PHD2
And this might also explain why the front part of the debug log file was missing. Hmmmm. Our friend
unread,
Dithering with APT and ZWO AM5 mount shut down PHD2
And this might also explain why the front part of the debug log file was missing. Hmmmm. Our friend
Aug 13
Chuck Schreiner
,
bw_m...@earthlink.net
3
Aug 13
Guide star lost, low mass or low SNR
Thanks, Bruce On Friday, August 12, 2022 at 8:05:01 PM UTC-7 bw_m...@earthlink.net wrote: There's
unread,
Guide star lost, low mass or low SNR
Thanks, Bruce On Friday, August 12, 2022 at 8:05:01 PM UTC-7 bw_m...@earthlink.net wrote: There's
Aug 13
Graeme Durden
,
bw_m...@earthlink.net
3
Aug 13
Guiding was Good Then Bad
Thanks for your response Bruce. It was a lengthy slew and I image from indoors now working over
unread,
Guiding was Good Then Bad
Thanks for your response Bruce. It was a lengthy slew and I image from indoors now working over
Aug 13
Rick Cohen
, …
bw_m...@earthlink.net
5
Aug 12
GEM28 guiding performance
You can't try to use a saturation setting that doesn't match the data being returned by the
unread,
GEM28 guiding performance
You can't try to use a saturation setting that doesn't match the data being returned by the
Aug 12
Stuart Taylor
, …
Brian Valente
32
Aug 12
PHD2 can't connect to my guide cam
thanks. Yes. Everything is up to date. I'm running ASCOM 6.6 and ZWO drivers 3.19 On Fri, Aug 12,
unread,
PHD2 can't connect to my guide cam
thanks. Yes. Everything is up to date. I'm running ASCOM 6.6 and ZWO drivers 3.19 On Fri, Aug 12,
Aug 12
MikeSchi
Aug 11
CEM70EC and "Mount has high precision encoders" option
I just purchased a CEM70EC mount and currently using the default PHD2 settings. I'm trying to
unread,
CEM70EC and "Mount has high precision encoders" option
I just purchased a CEM70EC mount and currently using the default PHD2 settings. I'm trying to
Aug 11
MiguelE
, …
bw_m...@earthlink.net
11
Aug 11
Possible use of NINA's Manual Rotator/Framing Wizard Camera Angle
Hi Miguel. This isn't something we want to do, it would basically violate some basic design
unread,
Possible use of NINA's Manual Rotator/Framing Wizard Camera Angle
Hi Miguel. This isn't something we want to do, it would basically violate some basic design
Aug 11
gary
, …
Bruce Waddington
15
Aug 11
Pattern of RA Spikes after Good Calibration - Ideas to Resolve?
Hi Bruce So, that's about what the RMS from both nights tells us. With the incorrect FL of 250mm,
unread,
Pattern of RA Spikes after Good Calibration - Ideas to Resolve?
Hi Bruce So, that's about what the RMS from both nights tells us. With the incorrect FL of 250mm,
Aug 11
Sam Park
, …
Bruce Waddington
11
Aug 9
Unable to get mount movement with PHD2
Glad you got that figured out. But I think you previously messed up some of the calibration
unread,
Unable to get mount movement with PHD2
Glad you got that figured out. But I think you previously messed up some of the calibration
Aug 9
JS
, …
bw_m...@earthlink.net
20
Aug 9
Comet Guiding on AP1200
If you've checked the box for 'mount coordinates', I think you would do the “straight
unread,
Comet Guiding on AP1200
If you've checked the box for 'mount coordinates', I think you would do the “straight
Aug 9
Kaban
,
bw_m...@earthlink.net
3
Aug 8
Sticky lock and scripted operation. Feature for PHD2 Broker?
Hello, Bruce. Yes, i tested it manually and it works. If i guide on the target star i just write down
unread,
Sticky lock and scripted operation. Feature for PHD2 Broker?
Hello, Bruce. Yes, i tested it manually and it works. If i guide on the target star i just write down
Aug 8
M S
, …
Brian Valente
6
Aug 8
Dark library failing. I believe it sees my older library. How do I delete a previous library?
Ok guys I am idiot. I was using the Ascom ASI camera setting instead of the ZWO camera setting. Once
unread,
Dark library failing. I believe it sees my older library. How do I delete a previous library?
Ok guys I am idiot. I was using the Ascom ASI camera setting instead of the ZWO camera setting. Once
Aug 8
Kevin Wisdom
, …
Bruce Waddington
15
Aug 8
PHD2 ASCOM calibration failure and poor guiding
Hi, Bruce To be honest, I've completely lost track of all the things I've tried, so it wouldn
unread,
PHD2 ASCOM calibration failure and poor guiding
Hi, Bruce To be honest, I've completely lost track of all the things I've tried, so it wouldn
Aug 8
Les Moore
, …
Bruce Waddington
5
Aug 7
Basic Question on Mount Connection
Thanks to all for help On Sunday, August 7, 2022 at 10:19:26 AM UTC+1 Les Moore wrote: Hi, I am
unread,
Basic Question on Mount Connection
Thanks to all for help On Sunday, August 7, 2022 at 10:19:26 AM UTC+1 Les Moore wrote: Hi, I am
Aug 7
Carter Loewen
, …
mj.w...@gmail.com
6
Aug 6
"Calibration Failed, star did not move enough"
Hi Carter You've only now mentioned what mount you have, and that it doesn't have a Dec motor
unread,
"Calibration Failed, star did not move enough"
Hi Carter You've only now mentioned what mount you have, and that it doesn't have a Dec motor
Aug 6
Sebastian K
, …
bw_m...@earthlink.net
11
Aug 5
PDH Silent Crash Last Night
Hi Bruce, Absolutely. I can follow up with tech discussion on GitHub. #1. Affirmative. #2. TBD.
unread,
PDH Silent Crash Last Night
Hi Bruce, Absolutely. I can follow up with tech discussion on GitHub. #1. Affirmative. #2. TBD.
Aug 5
Ofer Goldberg
,
Bruce Waddington
3
Aug 5
strange periodic spikes in DEC guiding
Thanks Bruce, I actually disabled the backlash compensation and saw similar behavior. I will make
unread,
strange periodic spikes in DEC guiding
Thanks Bruce, I actually disabled the backlash compensation and saw similar behavior. I will make
Aug 5
Rick Boudah
, …
bw_m...@earthlink.net
11
Aug 4
PHD2 Still Guiding When Cloudy
There's no “window” to show server traffic, the volume is typically too high for that to do you
unread,
PHD2 Still Guiding When Cloudy
There's no “window” to show server traffic, the volume is typically too high for that to do you
Aug 4
pique...@gmail.com
,
bw_m...@earthlink.net
4
Aug 4
transferring PHD2 to new PC
There are many reasons we do it this way including the fact that PHD2 is cross-platform and we rely
unread,
transferring PHD2 to new PC
There are many reasons we do it this way including the fact that PHD2 is cross-platform and we rely
Aug 4
Mike Dols
, …
bw_m...@earthlink.net
7
Aug 2
PHD2 shows no mount options for iOptron CEM25p. Driver issue?
@Brian: I guess its just installing the driver and it shows up in the mount pulldown? no need to
unread,
PHD2 shows no mount options for iOptron CEM25p. Driver issue?
@Brian: I guess its just installing the driver and it shows up in the mount pulldown? no need to
Aug 2
2Brain Poker
, …
David Kerber
20
Aug 2
Connecting Nikon DSLR Failure
Yes, that's how it is normally done. On 7/30/2022 2:32 PM, 2Brain Poker wrote: > Can u drift
unread,
Connecting Nikon DSLR Failure
Yes, that's how it is normally done. On 7/30/2022 2:32 PM, 2Brain Poker wrote: > Can u drift
Aug 2
Ana Ta
,
Bruce Waddington
7
Aug 1
PE is not periodic
No, the curve is NOT the result of guiding, it is showing you the native tracking error of your mount
unread,
PE is not periodic
No, the curve is NOT the result of guiding, it is showing you the native tracking error of your mount
Aug 1
Michael Richmond
, …
Brian Valente
5
Aug 1
problem with communications to Astro-physics 1200
>> When you do this, you should also use the “Aux-mount” option in PHD2, specifying the AP
unread,
problem with communications to Astro-physics 1200
>> When you do this, you should also use the “Aux-mount” option in PHD2, specifying the AP
Aug 1
2Brain Poker
,
Brian Valente
2
Aug 1
Manual Wrong? Can't Drift Align W/o connected mount?
Which polar alignment procedure are you using? I recommended SPA. Drift align requires you to have a
unread,
Manual Wrong? Can't Drift Align W/o connected mount?
Which polar alignment procedure are you using? I recommended SPA. Drift align requires you to have a
Aug 1
Paul Lu
,
bw_m...@earthlink.net
9
Jul 31
ASCOM DSLR EOS Ra keeps getting Exception thrown polling camera: Camera not connected
This is good, you've done some nice work, you've demonstrated that the ASCOM driver isn't
unread,
ASCOM DSLR EOS Ra keeps getting Exception thrown polling camera: Camera not connected
This is good, you've done some nice work, you've demonstrated that the ASCOM driver isn't
Jul 31
bob.m...@gmail.com
,
bw_m...@earthlink.net
3
Jul 30
Change request
I understand. I can implement this easily enough with VB.net, but I thought it may be useful to other
unread,
Change request
I understand. I can implement this easily enough with VB.net, but I thought it may be useful to other
Jul 30
Peter Fassler
,
Bruce Waddington
4
Jul 30
Connect to Moravian CCD camera fails
It will make things easier if you don't flop around with driver choices. If the ASCOM driver
unread,
Connect to Moravian CCD camera fails
It will make things easier if you don't flop around with driver choices. If the ASCOM driver
Jul 30