General AAVSO Discussion

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There are still some seats open in the 2024 AAVSO CHOICE course Observing and Counting Sunspots that begins on Monday, September 2. The instructor is Raffaello Braga.

For information on the course please go here: https://www.aavso.org/choice-course-descriptions#Sunspots

To purchase the course (purchase = enroll = register for) go to: https://www.aavso.org/product/147

Hi everyone,

As a user of the N.I.N.A. Exoplanet/Variable Stars plugin, I've been in contact with the creator of the Variable Star plugin, @rbarbera, on the Discord NINA Plugin Discussions section.

Perusing my old observing notebooks, I have ten visual binocular and telescope observations of V4743 Sgr between 22/9/2002 and 18/10/2002. My estimates were based on magnitudes of comparison stars given in the old software package Redshift 3. They appear to be consistent with those already in the AAVSO database. Is there any value in me adding these observations at so late a date?

I have been doing photometry with only a V filter.  I have recently purchased a B filter and a filter wheel to use both filters when gathering data for a star.  I am currently looking at the focus off-set for the B filter.  How close do the FWHM of the star in the two filters need to be to be considered in focus?

Are you:

    New to visual variable star observing?
    Wondering how to create your observing program?
    Trying to decide what to observe visually?
    Interested in observing variables but not in complex data reduction?

Hello all,

Is anybody else having problems plate solving with AIJ?  Finally had a relatively clear night last night and got some photometry of T CcB but fails with plate solving.  Strange as I took the same images and could plate solve with nova.astrometry.net.  Also, it won't plate solve images that were previously quickly solved.  Strange we are running into these problems just as T CrB is set to explode.

Clear skies,

Steve

The AAVSO and the SuperNova Early Warning System team (SNEWS) are collaborating to monitor bright potential supernova progenitors. The targets are broadly distributed across the sky and all types of observing may be used, so this exciting campaign offers any interested observer the opportunity to contribute.

Join us tomorrow for a webinar looking at the campaign's progress to date. The session will feature talks from Professor Alec Habig, University of Minnesota, and Dr. Bert Pablo, AAVSO's Staff Astronomer.

When: Saturday, July 12, 2024 02:00 PM ET

Where: Online