Associazione Romana Astrofili

157 FRASSO SABINO 42,22945555N 12,81150555E 465m s.l.m.

Minor Planet Observations [157 Frasso Sabino]

Not Available

Overview of FTU results

New FTU ohmic discharges with a liquid lithium limiter at I<SUB>P</SUB>
= 0.7-0.75 MA, B<SUB>T</SUB> = 7 T and n<SUB>e0</SUB> >= 5
× 10<SUP>20</SUP> m<SUP>-3</SUP> confirm the spontaneous
transition to an enhanced confinement regime, 1.3-1.4 times
ITER-97-L, when the density peaking factor is above a threshold value of
1.7-1.8. The improved confinement derives from a reduction of
electron thermal conductivity (χ<SUB>e</SUB>) as density increases,
while ion thermal conductivity (χ<SUB>i</SUB>) remains…

Photometry of Asteroid 13241 Biyo

Asteroid 13241 Biyo was observed at Virginio Cesarini Observatory
(Italy) on 1 night in March 2011. The resulting lightcurve shows a
synodic period of 2.199 ± 0.219 h and amplitude 0.99 ±0.03
mag. in the R band.

The post-nova population

We here present our on-going project to unveil the post-nova population
by re-discovering old novae that have been lost after the initial
outburst and of which the binary itself is unobserved. We take UBVR
photometry for the candidate selection, long-slit spectroscopy to
confirm these candidates, and time-resolved spectroscopy to measure the
orbital period of the newly confirmed post-novae. Some preliminary
results are shown as examples.

Fotometria dell'asteroide 13241 BIYO

Complimenti a Raniero Albanesi, Massimo Calabresi e Roberto Haver per la pubblicazione nel Minor Planet Bulletin in merito alla fotometria dell'asteroide 13241 Biyo!

L'asteroide 13241 Biyo è stato osservato all'Ossservatorio Virginio Cesarini durante una notte del Marzo 2011.

La curva di luce risultante mostra un periodo sinodico di 2.199 +/- 0.219 h e una ampiezza di 0.99 +/- 0.03 mag. nella banda R.

La scelta di fotometrare l'asteroide 13241 Biyo è stata suggerita da un lavoro astrometrico: stavamo analizzando la lastra n° ER653 del DSS scattate il 20/4/1991 a…