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THE NEW SECTION SSV-UAI-GRAV

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Title: THE NEW SECTION SSV-UAI-GRAV


1
THE NEW SECTION SSV-UAI-GRAV
  • PADOVA 2010 March 21
  • Arne Henden meets SSV UAI GRAV
  • by
  • Ivo Peretto

2
The new union.
15-17 May 2009 An important date which
establishes the new collaboration between the SSV
UAI and GRAV
Group photo at the last meeting of Marana
Crespadoro (VI) Photo by Riccardo Papini
3
The SSV UAI
The SSV UAI (Union of Italian Amateur Astronomers
Variable Stars Section ) is the historical
section of the italian variable stars observers
headed by Angelo Frosina
4
Il G.R.A.V.
The Astronomical Research Group was founded in
2004 by two amateur astronomers, Flavio Zattera
and Ivo Peretto, as an alternative to SSV UAI,
with the intention of promoting culture and the
study of variable stars.
5
The collaboration
  • Since the beginning the atmosphere between the
    two groups was friendly, and it developed into
    the National Meeting, who took place in the
    following townes
  • Prato 2004
  • Montarrenti (Siena) 2005
  • Ravenna 2006
  • Padova 2007
  • Marana di Crespadoro (VI) 2009

6
The structure of the SSV UAI GRAV
The first fundamental step of this collaboration
was the construction of the website within the
portal, based on the protocol Wiki that allows
the complete autonomy of the individual
subsections.
Chief of this new section is Ivo Peretto
7
Site structure homepage
Current events and news to stay informed
Common section dedicated to beginners and
introduction to variable stars
Access links to individual subsections
8
THE SUBSECTIONS
After 5 years of collaboration between SSV UAI
and GRAV could some experience on the target to
be proposed. It was thus decided to create 4
subsection as follows
SSV UAI GRAV
SKY LIVE PROJECT I.Peretto
VISUAL SECTION F.Verza
EB SECTION M.Vincenzi
RR LYR SECTION AND SHORT PERIOD VARIABLE
STARS R.Papini
9
STRUCTURE OF THE SUBSECTION
Each chairman is free to decide how to organize
its own section, but in any case there will be
always a footprint common with the other
sections. Here below there is an example of the
Section RR_ Lyrae variable stars
10
1.Introduction of Variable Star Physical and more
11
2.How to send data
12
3.Stars to observe, period, visibility, ephemeris
For each star of the program you can download the
map with the reference stars and all the data
you need for the observation
13
3.Stars to observe, period, visibility, ephemeris
With this page you can organize your obervations
14
4.Link section
15
Brief description of each section
  • VISUAL SECTION
  • RR LYR SECTION AND SHORT PERIOD VARIABLE STARS
  • EB SECTION
  • SKY LIVE PROJECT

16
VISUAL SECTION
Although it may seem anachronistic to estimate
the variable stars in view, we think that this
section can help a neophyte to take the first
steps toward the comprehension of the variable
stars. Particular attention was given to
estimation methods such as fractional method, the
method of Pogson or of Argelander, which are all
explained in the site. There are also stars, who
because of their brightness, can be estimated
only with the visual method or with a photometer
for example the case of Epsilon Aurigae.
17
SHORT PERIOD VARIABLE STARS
This subsection is introduced by Riccardo Papini
after this section
18
EB SECTION
This subsection is introduced by Marco Vincenzi
after this section
19
SKY LIVE PROJECT
This section is a novelty. We had the chance to
create a working group that uses the remote
fully robotic telescopes placed in Pedara (CT)
on the slopes of Etna, in order to observe with
the aid of the CCD variable stars. The Skylive is
a new and innovative project of the UAI that
allows the acces to every recorded person and use
remote telescopes, CCD camera and filters (the
Tele4 has BVRI filters). This project is not
dedicated only to variable stars so we decided to
observe variable stars which can be estimated
just once a week then the choice has fallen on
Cepheid variable stars. Periodically, the chief
Ivo Peretto, establishes the targets.
www.skylive.it
20
SKY LIVE PROJECT
TELESCOPE Model 12 MEADE LX200 Focal lenght
1840 f/6.13 CCD ST10XME Field 18.7 x
277 Photometric Filters VBRI
21
SKY LIVE PROJECT
Just download this light program to be connected
to remote telescopes and give your contribution
to the study of variable stars.
22
SKY LIVE PROJECT
Multifilters observations of BB HER (guide
project)
23
SKY LIVE PROJECT
preliminary analysis of BB HER
Analysis of data only in V-band
24
SKY LIVE PROJECT
preliminary analysis of BB HER
After preliminary analysis of raw data it was
possible to calculate the O-C data 0.12 days in
line with the predictions of astronomers for this
star
25
SKY LIVE PROJECT
The future of SKYLIVE
An interesting program that we would like to
develop for 2010 includes 1) New Suspect
Variable (NSV) 2) Novae (AAVSO program)
26
Plans for the near future
There are many ideas that we would like to
develop short-term 1) completion of the Internet
site, in every section 2) developing a enter
level program for beginners 3) unification of
methods of observation and estimation of variable
stars using CCD 4) creating an online database
5) development of multi-band photometry with the
telescope remotely Skylive of UAI 6) creating a
section dedicated to the deepening of issues
related to the study of variable stars with
particular attention to astronomical data
analysis software 7) increased collaboration with
professional astronomers and with associations of
variability in the world as the AAVSO 8)
formulation of a course for beginners variability
propose national amateur groups 9) greater
involvement of associations of amateur
astronomers to study variable stars through
participation in national meetings and promotion
campaigns
27
There are many challenges that await us in the
next future, but the enthusiasm shown by our
members with their desire to grow makes us
believe that we had taken the right direction.
  • A SPECIAL THANKS TO
  • SUBSECTIONS CHAIRPERSONS
  • Riccardo Papini
  • Marco Vincenzi
  • Fabio Verza
  • COLLABORATORS
  • Alessandro Marchini
  • -Stefano Mandelli

WE LOOK FORWARD TO THE NEXT MEETING 15-16 MAY
2010 AMELIA (TR) VI MEETING DELLE STELLE
VARIABILI
THANKS Ivo Peretto
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