Groups
Groups
Sign in
Groups
Groups
Open PHD Guiding
Conversations
Labels
About
Send feedback
Help
Open PHD Guiding
Contact owners and managers
1–30 of 6903
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
Report group
0 selected
Jeff Kelly
,
Bruce Waddington
2
8:04 PM
Recalbrating
PHD2 was trying to tell you what was wrong with this alert: 20:47:55.497 00.000 28328 Alert: PHD2 is
unread,
Recalbrating
PHD2 was trying to tell you what was wrong with this alert: 20:47:55.497 00.000 28328 Alert: PHD2 is
8:04 PM
Rita Castilho
,
Bruce Waddington
6
5:54 PM
apparent mount disconnect
Dear Bruce, I am confirming that the mount-software disconnect disappeared for the second night in a
unread,
apparent mount disconnect
Dear Bruce, I am confirming that the mount-software disconnect disappeared for the second night in a
5:54 PM
Marco Malziotti
,
Bruce Waddington
5
10:24 AM
Celestron advanced VX - Suggested parameters to improve backlash
A few questions before trying for the third time. What does "GA measurement" mean? Where do
unread,
Celestron advanced VX - Suggested parameters to improve backlash
A few questions before trying for the third time. What does "GA measurement" mean? Where do
10:24 AM
Luca Bartolucci
, …
steve
4
9:46 AM
Trouble getting stable guiding graphs in PHD2
Dear Bruce and Steve, First of all, I apologize for my late reply—I have been extremely busy with
unread,
Trouble getting stable guiding graphs in PHD2
Dear Bruce and Steve, First of all, I apologize for my late reply—I have been extremely busy with
9:46 AM
lukfer sentencia
, …
Brian Valente
5
8:42 AM
ASI2600MC PRO and ASI120 Mini conflict when used simultaneously with NINA and PHD2
It seems that both programs are connecting to the main camera. For some reason, PHD2 doesn't
unread,
ASI2600MC PRO and ASI120 Mini conflict when used simultaneously with NINA and PHD2
It seems that both programs are connecting to the main camera. For some reason, PHD2 doesn't
8:42 AM
Don Waters
8:06 AM
logs from last night
https://openphdguiding.org/logs/dl/PHD2_logs_6WGq.zip Would you look at these please, and give me
unread,
logs from last night
https://openphdguiding.org/logs/dl/PHD2_logs_6WGq.zip Would you look at these please, and give me
8:06 AM
Ben Marshall
,
Brian Valente
10
Oct 10
Issue with The Sky Pro 64 bit
So this is the ascom settings. The error is the yellow banner at the top telling me ascom does not
unread,
Issue with The Sky Pro 64 bit
So this is the ascom settings. The error is the yellow banner at the top telling me ascom does not
Oct 10
Manuel Shaw
, …
Brian Valente
8
Oct 9
Guiding
The mount's weight capacity is independent of the issue you are having. Over capacity may affect
unread,
Guiding
The mount's weight capacity is independent of the issue you are having. Over capacity may affect
Oct 9
Kenn Hopkins
,
Brian Valente
5
Oct 7
Guiding stopped: The scope starting slewing
Kenn >>>PEC MATCH OVERRUN as mentioned on the PEMPro forum, that error has nothing to do
unread,
Guiding stopped: The scope starting slewing
Kenn >>>PEC MATCH OVERRUN as mentioned on the PEMPro forum, that error has nothing to do
Oct 7
Manuel Shaw
Oct 7
guiding stopped
unread,
guiding stopped
Oct 7
Manuel Shaw
Oct 7
guiding stopped
unread,
guiding stopped
Oct 7
Manuel Shaw
,
Bruce Waddington
2
Oct 6
Guiding failure
Please follow the instructions and upload both your guide and debug log files to our server: https://
unread,
Guiding failure
Please follow the instructions and upload both your guide and debug log files to our server: https://
Oct 6
gary
, …
Brian Valente
5
Oct 5
Guiding with a Paramount - pulse guiding or direct guiding with NINA?
Thanks Brian! Gary On Oct 5, 2025, at 1:39 PM, Brian Valente <bval...@gmail.com> wrote: Gary
unread,
Guiding with a Paramount - pulse guiding or direct guiding with NINA?
Thanks Brian! Gary On Oct 5, 2025, at 1:39 PM, Brian Valente <bval...@gmail.com> wrote: Gary
Oct 5
gary
Oct 4
Guiding in NINA Sequence with a Paramount - pulse guiding, direct guiding or both?
Trying to sort out a conflict between online papers. One says select 'Direct Guiding' the
unread,
Guiding in NINA Sequence with a Paramount - pulse guiding, direct guiding or both?
Trying to sort out a conflict between online papers. One says select 'Direct Guiding' the
Oct 4
Ed M
,
Brian Valente
2
Oct 4
Does PHD2 now make dynamic adjustments?
>>> Is PHD2 now making dynamic changes to its settings in response to changing conditions?
unread,
Does PHD2 now make dynamic adjustments?
>>> Is PHD2 now making dynamic changes to its settings in response to changing conditions?
Oct 4
Ettore Guido “Astrofilo66” Basiglio Ribaudo
Oct 4
Worm cge pro
I finally had my cge pro serviced and this is the result, a smooth ride.
unread,
Worm cge pro
I finally had my cge pro serviced and this is the result, a smooth ride.
Oct 4
jdh_astro
, …
Bruce Waddington
16
Oct 3
Star Streak Troubleshooting
Thanks for letting us know, Jonathan. You've also demonstrated for yourself how differential
unread,
Star Streak Troubleshooting
Thanks for letting us know, Jonathan. You've also demonstrated for yourself how differential
Oct 3
Malcolm Park
,
Brian Valente
11
Oct 1
comet tracking
good to know, thanks for the ideas! Malcolm On Wednesday, 1 October 2025 at 11:40:22 UTC-4 bval...@
unread,
comet tracking
good to know, thanks for the ideas! Malcolm On Wednesday, 1 October 2025 at 11:40:22 UTC-4 bval...@
Oct 1
Morten B Kristensen
,
Brian Valente
2
Oct 1
Best practice for old mount and sw?
Hi Morten Please upload the logs for your guiding, it will tell us more about how you have the mount
unread,
Best practice for old mount and sw?
Hi Morten Please upload the logs for your guiding, it will tell us more about how you have the mount
Oct 1
Morten B Kristensen
, …
Brian Valente
5
Oct 1
QHY 5L-IIC for guiding in PHD2?
Good to hear, thanks for the update On Wed, Oct 1, 2025 at 5:12 AM Morten B Kristensen <
unread,
QHY 5L-IIC for guiding in PHD2?
Good to hear, thanks for the update On Wed, Oct 1, 2025 at 5:12 AM Morten B Kristensen <
Oct 1
Michael Heald
,
Brian Valente
3
Oct 1
Guide Pixel Scale and PHD2?
Thanks. I've decided to go ahead and update the guide camera. Best regards. Mike On Tuesday,
unread,
Guide Pixel Scale and PHD2?
Thanks. I've decided to go ahead and update the guide camera. Best regards. Mike On Tuesday,
Oct 1
Miguel G
,
Brian Valente
7
Sep 30
Drift-correct graph interpretation
thanks Brian for the explanation. I would give a shot to ppec as suggested. Regards El sáb, 27 sept
unread,
Drift-correct graph interpretation
thanks Brian for the explanation. I would give a shot to ppec as suggested. Regards El sáb, 27 sept
Sep 30
John Schultz
, …
Bruce Waddington
5
Sep 29
PHD2 guiding repeatedly stops working with NINA
Yes, please just set it and leave it alone. Bruce On Monday, September 29, 2025 at 7:51:17 PM UTC-7
unread,
PHD2 guiding repeatedly stops working with NINA
Yes, please just set it and leave it alone. Bruce On Monday, September 29, 2025 at 7:51:17 PM UTC-7
Sep 29
Nick Ambrose
, …
Bruce Waddington
10
Sep 29
PDH2 crashing for no reason
I can give you a version of the executable with debug symbols but it will take me a couple of days
unread,
PDH2 crashing for no reason
I can give you a version of the executable with debug symbols but it will take me a couple of days
Sep 29
gizm...@yahoo.com
, …
Bruce Waddington
6
Sep 28
PHD2 doesn't stop guiding when finishing Light Frames in SGP
Let me expand on my initial response and perhaps save you some time. When doing automated imaging,
unread,
PHD2 doesn't stop guiding when finishing Light Frames in SGP
Let me expand on my initial response and perhaps save you some time. When doing automated imaging,
Sep 28
Chris Gittins
, …
Bruce Waddington
13
Sep 28
GEM45 issue
For completeness, I've attached screen captures of calibration data and guiding results after
unread,
GEM45 issue
For completeness, I've attached screen captures of calibration data and guiding results after
Sep 28
KJRitch
, …
Brian Valente
9
Sep 27
Guide Corrections for RA and DEC Delayed
According to Astronomy.tools Guidescope Suitability calculator when I chose my C8 with Hyperstar and
unread,
Guide Corrections for RA and DEC Delayed
According to Astronomy.tools Guidescope Suitability calculator when I chose my C8 with Hyperstar and
Sep 27
David Ridge
,
Bruce Waddington
10
Sep 27
wondering about the wandering
thanks for your analysis. 10000+ users, 9433 unique setups. That must be fun trying to corral that
unread,
wondering about the wandering
thanks for your analysis. 10000+ users, 9433 unique setups. That must be fun trying to corral that
Sep 27
Paul Wilson
,
Brian Valente
8
Sep 25
Continuing calibration error
Actually there's a feature coming in the next Dev release to make this easier Sounds like you
unread,
Continuing calibration error
Actually there's a feature coming in the next Dev release to make this easier Sounds like you
Sep 25
Kenn Hopkins
,
Brian Valente
3
Sep 24
Turing off/on PEC
sorry, I had a Senior moment I meant to post it to the Losmandy Group. Kenn On Wednesday, September
unread,
Turing off/on PEC
sorry, I had a Senior moment I meant to post it to the Losmandy Group. Kenn On Wednesday, September
Sep 24