spectro-aras.com

page opened in the database:
https://aras-database.github.io/databas ... 2024c.html
with also an echelle spectrum secured by Colin Elridge.

Update

Steve Shore (University of Pisa) gave a very informative talk about the nova phenomenon observed at multi-wavelengths from gamma to radio. Link to the video: https://us06web.zoom.us/rec/share/JeGyj_CXpXZ6Gsq9ykTr_gGoZskTRsrqCmNFMlvjuUoL1PwZPRsnbV3LIQDhpVHs.WC3C6fJZRMMJ1R0k We’ll organize soon a new ...

Thanks.
I fixed the issue

http://www.astronomie-amateur.fr/DocsSp ... V3_en.xlsm

François

Spectrum secured at SMM Joan Guarro remte station with an echelle NOU-T R =9000 Flux calibration using V Band magnitude. novavul2024.png The spectrum is strongly reddened (see the shape of the continuum and the strength of interstellar Na I). Fe II (42) mutliplet appears clearly. OI lines (7776, 844...

QW Sge is signaled in outburst (ATel)
Monitoring of the outburst is suggested.

V1413 Aql is begining an eclipse. Thank to David Boyd for launching the alert. The maximum could be reached about 18-08-2024 . Monitoring of the event is recommended. AAVSO visual light curve showing the complex and unusual behavior nand some of the eclipses. V1413Aql_Vis.png https://aras-database.g...

A new nova in Northern Sky

PNV J19430751+2100204

RA = 19 43 07.5
DE = +21 00 20.4

Page opened in the database: https://aras-database.github.io/databas ... l2024.html

Faint enhancement of B and V mag
Current orbital cycle in black.
It will be interesting to see how Balmer lines reacts.

After a short "flare" (less than 10 days) T CrB returns to very activity with H alpha very faint. H alpha lux from flux calibrated spectra: http://www.astronomie-amateur.fr/EruptiveStars/TCrB/TCrB_Halpha_2024.png Link to the page: http://www.astronomie-amateur.fr/EruptiveStars/TCrB0.html F...