Search found 461 matches
- Thu Jun 15, 2023 9:59 am
- Forum: General Topics, Annoucements, Forum Life
- Topic: BAV ZOOM meetings
- Replies: 0
- Views: 9331
BAV ZOOM meetings
The German organization for variable stars (BAV) hereby announces a monthly ZOOM meeting as a discussion platform on the subject of variable stars. Photometric-spectroscopic topics from amateur and professional observation of variables are discussed in an informal manner. Here is the link to the fir...
- Wed Jun 07, 2023 8:28 am
- Forum: Be Stars survey
- Topic: Halpha versus HeI6678 in delta Sco
- Replies: 0
- Views: 5721
Halpha versus HeI6678 in delta Sco
Who ist interested to contribute with Halpha and HeI6678 spectra to the attached monitoring?
The monitoring is dealing with the question of the disk feeding process depending of photospherical matter. Ernst Pollmann
The monitoring is dealing with the question of the disk feeding process depending of photospherical matter. Ernst Pollmann
- Thu Jun 01, 2023 11:55 am
- Forum: General Topics, Annoucements, Forum Life
- Topic: BAV Magazine SPECTROSCOPY
- Replies: 4
- Views: 8212
Re: BAV Magazine SPECTROSCOPY
Dear colleagues,
I hereby announce that the newest issue of the "BAV-Magazine-Spectroscopy" is now available at:
https://bav-astro.eu/images/BAV_13-2023.pdf
Ernst Pollmann
I hereby announce that the newest issue of the "BAV-Magazine-Spectroscopy" is now available at:
https://bav-astro.eu/images/BAV_13-2023.pdf
Ernst Pollmann
- Sat Apr 01, 2023 10:32 am
- Forum: General Topics, Annoucements, Forum Life
- Topic: BAV Magazine SPECTROSCOPY
- Replies: 4
- Views: 8212
Re: BAV Magazine SPECTROSCOPY
James,
that´s the reason why a group of eight observers has dedicated this object.
You are very welcome to contribute with your spectra.
Attached you will find a Fig. that shows the current state of results. Ernst
that´s the reason why a group of eight observers has dedicated this object.
You are very welcome to contribute with your spectra.
Attached you will find a Fig. that shows the current state of results. Ernst
- Mon Feb 13, 2023 4:36 pm
- Forum: VV Cep
- Topic: VV Cep spectrum
- Replies: 2
- Views: 2895
Re: VV Cep spectrum
Dear Olivier,
could you be so kind to send me this spectrum via email?
Thanks in advance,
Ernst
could you be so kind to send me this spectrum via email?
Thanks in advance,
Ernst
- Sat Jan 07, 2023 9:21 am
- Forum: P Cygni
- Topic: P Cyg in Halpha uninteresting?
- Replies: 3
- Views: 7269
Re: P Cyg in Halpha uninteresting?
For P Cygni observers:
update of the Halpha flux periodic behavior.
Ernst Pollmann
update of the Halpha flux periodic behavior.
Ernst Pollmann
- Fri Dec 02, 2022 8:44 am
- Forum: General Topics, Annoucements, Forum Life
- Topic: BAV Magazine SPECTROSCOPY
- Replies: 4
- Views: 8212
BAV Magazine SPECTROSCOPY
The newest issue of the spectroscopy magazine BAVMS has been published.
See the following link:
https://bav-astro.eu/images/BAV-Magazin ... 2-2022.pdf
Ernst Pollmann
See the following link:
https://bav-astro.eu/images/BAV-Magazin ... 2-2022.pdf
Ernst Pollmann
- Wed Nov 30, 2022 10:52 am
- Forum: Supernovae
- Topic: SN 2021aefx in NGC1566 (Dorado)
- Replies: 17
- Views: 12808
Re: SN 2021aefx in NGC1566 (Dorado)
Some professionals do not see the sole (often too willing) provision of observation data as a reason for co-authorship. They are eager to get dates from us, and that's about it in many cases. One more reason for "professional amateurs" to scientifically interpret and publish their own data...
- Wed Nov 30, 2022 10:35 am
- Forum: Be Stars survey
- Topic: 28 Tau ARAS monitoring
- Replies: 60
- Views: 231217
Re: 28 Tau ARAS monitoring
The last periastron passage took place on 2022-11-15 (JD 2459898.7).
The new observation data of A. Leduc, E. Bertrand, B. Hanisch, J. Martin, A. Stiewing, E. Pollmann enables an actualized of the orbital period of the companion (see attachment).
Ernst Pollmann
The new observation data of A. Leduc, E. Bertrand, B. Hanisch, J. Martin, A. Stiewing, E. Pollmann enables an actualized of the orbital period of the companion (see attachment).
Ernst Pollmann
- Thu Nov 10, 2022 5:45 pm
- Forum: Spectroscopes and Softwares
- Topic: Automation
- Replies: 7
- Views: 2057
Re: Automation
Pete,
yes, I received it.
Please let´s communicate via eMail, that´s more comfortable from my side.
Ernst
yes, I received it.
Please let´s communicate via eMail, that´s more comfortable from my side.
Ernst