Search found 7 matches
- Thu Oct 21, 2021 7:05 am
- Forum: Symbiotic Stars
- Topic: Suspected/Misclassified Symbiotics: spectra required
- Replies: 128
- Views: 143478
Re: Suspected/Misclassified Symbiotics: spectra required
Hello everyone, thanks to Jaroslav for giving us this new and exciting challenge. From his list I decided to treat the simplest Gaia object, Gaia10dxh, and acquired some spectra yesterday 20 October from my observatory located in the light pollution of a small town. After a comparison with the star ...
- Tue May 04, 2021 11:42 am
- Forum: Novae
- Topic: Nova Sgr 2021 (a)
- Replies: 3
- Views: 4051
Re: Nova Sgr 2021 (a)
Hallo everybody, here my simply comparison at low resolution made using alpy600 not flux calibratied. I can see an evolution in the spectrum noting an incresing of expansion gas from around 900km/s to 1600 km/s. It would be very interesting to continue acquiring spectra to evaluate the evolution but...
- Fri Apr 16, 2021 8:32 am
- Forum: Novae
- Topic: Nova Sgr 2021b - Second nova of the year in Sgr
- Replies: 4
- Views: 4638
Re: Nova Sgr 2021b - Second nova of the year in Sgr
Hallo everybody, here my comparison at low resolution of this Nova taken from 3800A to 7900A. At low resolution I noticed an incrase of the basic lines and a splitting of the h alpha line. I also noticed an incrise of the OI (?) line at the extreme end of the spectrum. Would it be possible an overla...
- Tue Nov 05, 2019 6:19 pm
- Forum: Novae
- Topic: ASASSN-19aad, possible nova
- Replies: 8
- Views: 8424
Re: ASASSN-19aad, possible nova
Hallo everybody, here my last spectrum of ASASSN-19aad taken yesterday evening. The profile evolved over the days showing a very broad and pronounced H Alpha emission line. In my low resolution spectrum we can see also weak emission lines as FeII (5018.4 A, 5169 A, 6248 A, 6456 A) and maybe a CII li...
- Thu Jul 19, 2018 12:12 pm
- Forum: Outbursts, Alerts, Monitoring
- Topic: TCP J18292290-1430460 = Nova Sct 2018
- Replies: 43
- Views: 80563
Re: TCP J18292290-1430460, mag 10 in Sct
Hallo everybody, here my last spectra compared with the 4th July consistent with those reported at low resolution. Since we use a Newton telescope togheter with an Alpy setup, i am strong interest to know more information about calibration spectra and problems about the weight of the cameras and the...
- Mon Apr 25, 2016 8:59 pm
- Forum: Outbursts, Alerts, Monitoring
- Topic: AG Dra brightening
- Replies: 38
- Views: 32986
Re: AG Dra brightening
Hallo everybody,
these are my first low resolution spectrum here on aras group. I did theme using an alpy600 coupled with a 200 mm newton telescope. I attached the last spectrum of AG Dra made this night and a comparison made to show some changes in He and O VI spectrum lines
these are my first low resolution spectrum here on aras group. I did theme using an alpy600 coupled with a 200 mm newton telescope. I attached the last spectrum of AG Dra made this night and a comparison made to show some changes in He and O VI spectrum lines
- Mon Apr 18, 2016 6:53 am
- Forum: Introduction / Présentation
- Topic: Hallo, presentation
- Replies: 3
- Views: 3773
Hallo, presentation
Hallo to all ARAS members, I am Paolo Cazzato, I live close to Lecce and I do my observing from the polluted sky of Salento extreme south of Italy. I have been interested in astronomy since 1997 when I was fascinated from the Hale Bopp comet. Since then I have been using my small telescopes for obse...