We are excited to announce the launch of our new forums! You can access it forums.aavso.org. For questions, please see our blog post. The forums at aavso.org/forum have become read-only.
Announcement: New Applications
The existing WebObs will soon be replaced by WebObs 2.0! Please use this application to submit future observations: Submit Photometric Observations
Yes, I confirm that the equinox is J2000. However, in 99% of cases all the "modern" catalogs use this equinox.
For confirmation: the coordinates are J2000. Typically, the coordinate accuracy is about 0.25arcsec.
Arne