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Announcement: New Applications
We are excited to announce the launch of our new applications! We're opening up early access to our new applications for searching, downloading, and submitting photometric observations. You can now access these applications through these links:
We ask for your feedback in order to help us improve these applications. Please send feedback for the applications above to feedback@aavso.org. Note: please avoid duplicating submissions across the two submit applications.
I haven't reduced any magnitudes on this, but here is a low resolution spectrum taken with my ST-10xme and SA200 grating right after my photometric exposures:
I have had a couple of observations in V & B and looked at the B-V; using the VStar plug-in. It has blued markedly also like it did in previous brightenings.
thank you very much to everybody for the alert. Although yesterday clouds were present and disturbed the observation, I was able to catch this spectrum. Really impressive the P-Cygni profiles in H-beta and Fe II triplet. These bands display a gas-expansion speed of ca. 660 km/s for the H-beta band, and 600, 670 and 477 km/s for the Fe II triplet. Of course, these measures should be confirmed with a more resolution spectrum.
thanks!
Thank you a lot PAW, I like this kind of new observation, and Z CMa is an interesting star!
My estimation, yesterday 2017/02/24 19:12 UTC magn. +8.0, close to the maximum.
Michel
I haven't reduced any magnitudes on this, but here is a low resolution spectrum taken with my ST-10xme and SA200 grating right after my photometric exposures:
http://astroimage.info/spectra/Z%20CMa_25Feb17SA200.jpg
James Foster
Hi Guys
I have had a couple of observations in V & B and looked at the B-V; using the VStar plug-in. It has blued markedly also like it did in previous brightenings.
Robert.
Hello,
thank you very much to everybody for the alert. Although yesterday clouds were present and disturbed the observation, I was able to catch this spectrum. Really impressive the P-Cygni profiles in H-beta and Fe II triplet. These bands display a gas-expansion speed of ca. 660 km/s for the H-beta band, and 600, 670 and 477 km/s for the Fe II triplet. Of course, these measures should be confirmed with a more resolution spectrum.
Greetings,
Fran