of Jyotirvidya Parisanstha Pune India by SGurjar Jyotirvidya Parisanstha JVP Pune India Oldest association of Amateur Astronomers of India Established in 1944 Presently active in Serious Astronomy observations ID: 580582
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Occultation Activities of Jyotirvidya Parisanstha, Pune Indiaby S.Gurjar
Jyotirvidya
Parisanstha
(JVP)
, Pune India Oldest association of Amateur Astronomers of India
Established in 1944
Presently active in Serious Astronomy observations
With 10” GOTO Newtonian Telescope mounted in our own Dome + DSLRs
&
Popularization of astronomy Slide2
Occultation Activities of Jyotirvidya Parisanstha, Pune India
Various Serious Observational activities:
Variable Star Observations: You may see the various variable stars observations accepted by AAVSO
Sky survey: for transients finding. We have data of 100 sq. deg. for 90 days last year to find the transients. Result: no transients found bright enough more than 11 mag.
Meteor Shower ZHR Counting
Comet Observations
Occultation photography and timingSlide3
Occultation Activities of Jyotirvidya Parisanstha, Pune India
Occultation was initially a just attraction / fantasy in sky for us.
Few Occultations we observed as follows in following slidesSlide4
Occultation Activities of Jyotirvidya Parisanstha, Pune India
Occultation of Saturn by Moon (Oct 15,1997)
Photograph by
Sameer
Godbole
/Deepak Joshi
No efforts of timing the occultation were doneSlide5
Occultation Activities of Jyotirvidya Parisanstha, Pune India
Occultation of
Aldebran
by Moon: (Report)
Date : 6 Feb 1998 02:29:54 +0530 (gmt+05.30) from :
Arvind
Paranjpye
to
: Joan and David Dunham
Subject:
Aldebaran
occultation reports Dear David, Reporting here timings of occultation of
Aldebaran
taken on 5 Feb 98 from
iucaa
(the coordinates reported to you by
N.C.Rana
/
Mridula
. No personal equation was obtained. The "ear and eye method" was used for timing the occultation.
Celestron
C8 and a 3" refractor was used. Feb.5,98-UT Feb.6,98-IST With C8 : 19:38:15.95 01:08:15.95 With 3" : 19:38:15.81 01:08:15.81 The sky condition was good but there were thin cloud. The lead role was played by
Aniruddh
Deshpande
,
Suhas
Gurjar
of the local Amateur Astronomers Association called Jyotirvidya Parisanstha Pune. By
Arvind
21:04 UT 5/2/98Slide6
Occultation Activities of Jyotirvidya Parisanstha, Pune India
20
th
March 1998: Occultation of a 8.5 magnitude star SAO 162764 by Venus (- 4.6 magnitude)
The occultation was predicted using Planetarium Software “Red Shift”
We tried to record it using CCD camera from IUCAA (Inter university Center for Astronomy and Astrophysics, Pune)
Due to very bright Venus, CCD was washed away, but we observed Venus heading towards the star SAO 162764. Slide7
Occultation Activities of Jyotirvidya Parisanstha, Pune India
23
rd
April 1998:Double occultation of Venus and Jupiter by Moon. It was day time event, at around 2 to 3 pm.
Previous Night Day time OccultationSlide8
Occultation Activities of Jyotirvidya Parisanstha, Pune India
21
st
May 2004:Partial occultation of Crescent Venus and by Crescent Moon.
It was fount out that from our home city there was no Venus occultation going to happen. But, from 200
Kms
north of us, it was going to happen. Thus, we travelled in between to
Khodad
, the world’s largest meter wavelength Radio Telescope GMRT location and captured this beautiful partial occultation of crescent Venus by similar shaped crescent moon.
The video was captured, … next slide.. One of those frames
Slide9
Occultation Activities of Jyotirvidya Parisanstha, Pune India
Slide10
Occultation Activities of Jyotirvidya Parisanstha, Pune India
On Feb 4, 2013: Asteroid 1243 Pamela occults with TYC 5507-01020-1 Star Magnitude 8.4 and Asteroid magnitude 14.8 broken star trail showing occultation.
The start Time was in sync
with NIST. The total Exposure
time was 180 sec.
The cut in trail was calculated
to be 11 seconds.
Camera used Canon 7D DSLR
Cut in the trailSlide11
Occultation Activities of Jyotirvidya Parisanstha, Pune India
On Feb 15, 2013: Asteroid 2012 DA14 was to pass very close to earth, just some 28000
kms
from earth’s surface. We captured its entire travel from south east to north azimuth.
flyby of asteroid 2012 DA14. Magnitude of Asteroid changed from 9.4 (while rising on Feb 15, at 23.31 IST) to 6.82 (on Feb 16 at 01.15 IST) and dropped back to around 3.30 am. This event was telescopic event even we could watch it using binoculars.Slide12
Occultation Activities of Jyotirvidya Parisanstha, Pune India
Occultation on 10th Dec 2014 : TYC 1766-01017-1 by
Bobrovnikoff
was observed from 5 different locations using telescopes.
The locations were chosen keeping in mind to record the observations in order to predict the size and shape of the asteroid.
Only One team among Five was successful in recording the observation.
Location 3: 18.3899, 74.0138
Observers:
Ram
Karanje
,
Harsha
Kulkarni
,
Sushen
Joshi
Equipments:
Skywatcher
8 inch Reflector on GOTO + Canon 5D Mark II.
This was recorded by trailing the star field and finding the break in star trail of TYC 1766-01017-1
Image in next slideSlide13
Occultation Activities of Jyotirvidya Parisanstha, Pune India
Star Trail Cut of 3 secSlide14
Occultation Activities of Jyotirvidya Parisanstha, Pune India
Oct 3. 2015:
It was decided that JVP need to take an opportunity to join Paul
Maley
, USA to understand the accurate ways of timing the occultations.
First time efforts were done to video record the
occulation
of HIP 12740 by asteroid
Dione
from Delhi.
Three of us arrived in
Gurgaon
Delhi, with 10” equatorial GOTO mount EQ6, Newtonian telescope, mounted with Video Camera (ordinary Security type video camera) + DVR + Laptop controls. We arrived two days in advance to set up our equipment as well as to visit Paul’s proposed site, so that Paul need not waste his time in searching the site. Also to try to make few more stations.
Laptop and DVR times were NIST sync. We could not make arrangements for GPS time stamping.
The results of the occultation time very much matched with Paul
Maley’s
results, though real time didn’t match.
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Occultation Activities of Jyotirvidya Parisanstha, Pune India
Oct 3. 2015:Slide16
Occultation Activities of Jyotirvidya Parisanstha, Pune India
Our Plans:
We have very good working member strength. Almost 100 young students interested in astronomy observations are available.
We are planning to make at least 10 sets of equipment including, appropriate imaging lens system + high sensitivity CCD cameras 0.00001
lux
sensitive + GPS time stamp insertion system + DVRs.
One trial Camera is already ordered, and will be in India shortlySlide17
Occultation Activities of Jyotirvidya Parisanstha, Pune India
Our Plans:
With more than 10 sets of equipment and equal number of trained teams, we plan to cover maximum possible occultations happening in India, within capability of our sets , at least near by to our home town. With 10+ stations at right angle line to the asteroid path, we will try to sufficient observational records, to enable us / IOTA to profile the asteroids. Slide18
Occultation Activities of Jyotirvidya Parisanstha, Pune India
What we need:
Finance
: We earn through various programs and spend for such activities. The funds raised by these means will not be sufficient to make our plans the reality very fast.
We will try to get some finance from various Astronomy related organizations in India like Indian Astronomical Society, Inter University Center for Astronomy and Astrophysics etc.
Not sure yet, if we can get some assistance from International organizationsSlide19
Occultation Activities of Jyotirvidya Parisanstha, Pune India
What we need:
Guidance:
We are sure, we will get full guidance from IOTA, David Dunham, Paul
Maley
, Brad
Timerson
,
Dave HeraldSlide20
Thanks