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Superimpose more than one lightcurve with VSTAR

coliac
Affiliation
American Association of Variable Star Observers (AAVSO)
Thu, 03/23/2023 - 09:43

Dear all

I did images in B and R of a star and uploaded to aavso

I would like to see the difference of shape in the two lightcurves by superimposing the 2 LC

I do not know how to do.

Thanks for the process

Regards

Jean

coliac
Affiliation
American Association of Variable Star Observers (AAVSO)
Sat, 03/25/2023 - 05:21
Dear Degen

Thank for your…

Dear Degen

Thank for your answer, but you mean using a plugin ?

When I click on the button, an error message appears "error reading remote plugin information"

I cannot install any plugins

Jean

Degen1103
Affiliation
American Association of Variable Star Observers (AAVSO)
Sat, 03/25/2023 - 06:13
Plugins

Did I understand right, that you already loaded two light curves and want to shift one upon other? If yes - use plugin after its updating and re-opening VStar:
https://www.aavso.org/vstar-plugin-library

If not - use firstly "add to current" option (in File -> New star from... menu) for loading additional dataset.

David Benn
Affiliation
Astronomical Society of South Australia (ASSAU)
Sat, 03/25/2023 - 10:21
Plugins

Thanks for replying Degen.

Jean, your plugin URL may be old. Go to File -> Preferences -> Plug-ins and click the Set Defaults button.

Also obviously ensure you have an Internet connection at the time. 

David

David Benn
Affiliation
Astronomical Society of South Australia (ASSAU)
Sun, 03/26/2023 - 10:56
There are plans to do this

Hi Jean

There are plans to do this. For example, see:

There are plans to do many things limited primarily by:

  1. available time of volunteer developers
  2. prioritisation of open issues

We try to be fairly reactive to needs as they arise, and of course bug fixes take priority much of the time, but the more we hear the need for a particular feature, the sooner it is likely to be implemented. There are also at times issues we just find interesting and worthwhile that will also be worked on and sometimes anticipate user needs before they have been expressed, e.g. the observation transformer class of plugins.

A new release has steadily been worked on since mid last year. So, stay tuned but definitely let us know what features should be prioritised.

David

mpyat2
Affiliation
American Association of Variable Star Observers (AAVSO)
Thu, 04/06/2023 - 10:30
A palliative solution:…

A palliative solution: Flexible Format Reader #DATEADD directive:

#DATEADD=(value to be added to date values, default = 0.0)

May appear in any line (i.e. to change the value to be added to dates)

Example (MJD is converted to JD with “#DATEADD” directive):

#NAME=T Umi
#data from NSVS (MJD)
#DELIM=tab
#FIELDS=time,mag,magerr
#DATE=JD
#DATEADD=2450000.5
1318.163916 8.697 0.01 0
1318.164236 8.683 0.01 0
1318.219486 8.664 0.01 0
1318.219806 8.655 0.01 0
1325.211736 8.791 0.01 0
1325.212046 8.793 0.01 0
...