AAVSO Observer Code
SAMA
Affiliation
American Association of Variable Star Observers (AAVSO)
Full Name
Ari Siqueira
Location
Betim, Minas Gerais, BR
Background/Interesting Fact
First hooked on Astronomy during my mid-teens; fell in love with it in Athens/GA, USA, during Halley's comet perihelion in 1985-86.
Practicing photometric and spectroscopic observation of Be stars visible from the Southern Hemisphere.
Backyard DIY observatory at 19° 57' S / 44° 15' W, 780 m; 203-mm f/10 SCT & 80-mm f/5 achromatic refractor; J-C filters, Star'EX spectrograph.
Ph.D. in Molecular and Cellular Biology, University of Georgia, Athens/GA, 1988. Retired university professor since 2016 (UFMG, Brazil).
Affiliated with the AAVSO, the British Astronomical Association, the Variable Stars South/NZ, the Sociedade Astronômica Brasileira, the União Brasileira de Astronomia, the Liga Iberoamericana de Astronomía - Sección Estrellas Variables, and the Centro de Estudos Astronômicos de Minas Gerais.
Practicing photometric and spectroscopic observation of Be stars visible from the Southern Hemisphere.
Backyard DIY observatory at 19° 57' S / 44° 15' W, 780 m; 203-mm f/10 SCT & 80-mm f/5 achromatic refractor; J-C filters, Star'EX spectrograph.
Ph.D. in Molecular and Cellular Biology, University of Georgia, Athens/GA, 1988. Retired university professor since 2016 (UFMG, Brazil).
Affiliated with the AAVSO, the British Astronomical Association, the Variable Stars South/NZ, the Sociedade Astronômica Brasileira, the União Brasileira de Astronomia, the Liga Iberoamericana de Astronomía - Sección Estrellas Variables, and the Centro de Estudos Astronômicos de Minas Gerais.
CHOICE Courses Completed
| Variable Star Classification and Light Curves | 2022-04-03 |
| Introduction to Spectroscopy | 2022-07-18 |
| Developing A Visual Observing Program | 2022-08-03 |
| Photometry using VPhot | 2022-11-18 |
| CCD Photometry, Part I | 2023-05-08 |
| CCD Photometry, Part II | 2023-05-08 |
| How to use VSTAR | 2023-06-13 |