Finding of the observations of external planets' satellites using the plate archive. First results
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| Дата: | 2005 |
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Головна астрономічна обсерваторія НАН України
2005
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| Назва видання: | Кинематика и физика небесных тел |
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| Цитувати: | Finding of the observations of external planets' satellites using the plate archive. First results / S. Shatokhina, O. Yizhakevych // Кинематика и физика небесных тел. — 2005. — Т. 21, № 5-додаток. — С. 570-572. — Бібліогр.: 4 назв. — англ. |
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irk-123456789-797242015-04-04T03:02:44Z Finding of the observations of external planets' satellites using the plate archive. First results Shatokhina, S. Yizhakevych, O. SS1: Virtual Observatories and Data Archives 2005 Article Finding of the observations of external planets' satellites using the plate archive. First results / S. Shatokhina, O. Yizhakevych // Кинематика и физика небесных тел. — 2005. — Т. 21, № 5-додаток. — С. 570-572. — Бібліогр.: 4 назв. — англ. 0233-7665 http://dspace.nbuv.gov.ua/handle/123456789/79724 en Кинематика и физика небесных тел Головна астрономічна обсерваторія НАН України |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine |
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SS1: Virtual Observatories and Data Archives SS1: Virtual Observatories and Data Archives |
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SS1: Virtual Observatories and Data Archives SS1: Virtual Observatories and Data Archives Shatokhina, S. Yizhakevych, O. Finding of the observations of external planets' satellites using the plate archive. First results Кинематика и физика небесных тел |
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Article |
| author |
Shatokhina, S. Yizhakevych, O. |
| author_facet |
Shatokhina, S. Yizhakevych, O. |
| author_sort |
Shatokhina, S. |
| title |
Finding of the observations of external planets' satellites using the plate archive. First results |
| title_short |
Finding of the observations of external planets' satellites using the plate archive. First results |
| title_full |
Finding of the observations of external planets' satellites using the plate archive. First results |
| title_fullStr |
Finding of the observations of external planets' satellites using the plate archive. First results |
| title_full_unstemmed |
Finding of the observations of external planets' satellites using the plate archive. First results |
| title_sort |
finding of the observations of external planets' satellites using the plate archive. first results |
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Головна астрономічна обсерваторія НАН України |
| publishDate |
2005 |
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SS1: Virtual Observatories and Data Archives |
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http://dspace.nbuv.gov.ua/handle/123456789/79724 |
| citation_txt |
Finding of the observations of external planets' satellites using the plate archive. First results / S. Shatokhina, O. Yizhakevych // Кинематика и физика небесных тел. — 2005. — Т. 21, № 5-додаток. — С. 570-572. — Бібліогр.: 4 назв. — англ. |
| series |
Кинематика и физика небесных тел |
| work_keys_str_mv |
AT shatokhinas findingoftheobservationsofexternalplanetssatellitesusingtheplatearchivefirstresults AT yizhakevycho findingoftheobservationsofexternalplanetssatellitesusingtheplatearchivefirstresults |
| first_indexed |
2025-07-06T03:43:45Z |
| last_indexed |
2025-07-06T03:43:45Z |
| _version_ |
1836867571692863488 |
| fulltext |
FINDING OF THE OBSERVATIONS OF EXTERNAL PLANETS’
SATELLITES USING THE PLATE ARCHIVE. FIRST RESULTS
S. Shatokhina, O. Yizhakevych
Main Astronomical Observatory, NAS of Ukraine
27 Akademika Zabolotnoho Str., 03680 Kyiv, Ukraine
e-mail: svetash@mao.kiev.ua
The first efforts were made to find observations of the external planets and their satellites using
the database of photographic observations of celestial bodies at the Main Astronomical Observatory
in Kyiv (MAO NASU).
One of the programs of observations performed at the Main Astronomical Observatory of the NAS of Ukraine
(MAO NASU) during the last years was the program of photographic observations of the external planets of
Solar System and their satellites.
Almost during 30 years (from 1963 to 1990) more than 1275 positions of the satellites of Saturn, Uranus, and
Neptune were received at Golosiiv (Ukraine) and at Majdanak (Uzbekistan) [3]. Unfortunately, their significant
part is garnered in 1980–1990. The best observational accuracy was obtained at Majdanak (the standard devia-
tions σα, σδ of both coordinates are equal to 0.22 and 0.23 arcsec, respectively), an enough good one – with
the Double Long-Focus Astrograph (DLA) (σα, σδ are equal to 0.27 arcsec) and a poor one – with the Double
Wide-Angle Astrograph (DWA) (σα, σδ are equal to 0.37 and 0.27 arcsec, respectively).
All the external planets’ satellites observations which were obtained worldwide, are well completed and
accessible: the first visual ones (from 1874) are presented in the catalogue of Stragnell and Taylor; the pho-
tographic ones gathered till 1988–1989; and observations with the use of CCD-receivers obtained in the last
decades. As a rule, the greater part of these observations is obtained in 1980–2000.
Unfortunately, there are not enough observations from 1960–1970. And this fact till now does not allow one
to prolong into the past the exact theories of movement of the satellites.
It is possible to try “to get” these observations in the past using databases of observations, and, in particular,
our archive of plates created at the MAO NASU.
During 60 years of the existence of our observatory, over 20 thousand various photoplates were taken, on
which astronomical objects and events are fixed since 1948. This information can be used for the decision of
various scientific tasks and including the detection of images of the external planets’ satellites.
For this purpose, the electronic archives of observations performed with the telescopes DLA and DWA were
just used [1, 2, 4]. Numbers of plates involved are 6445 (for 1960–1986 with the telescope DLA) and 4597 (for
1976–1997 with the DWA). (See in Fig. 1 the distribution of observations on time for both telescopes).
On the one hand, the DLA plates have a small scale (37.48 arcsec/mm) that allows one to divide the close
located images of satellite and planet and to achieve a good accuracy by the determination of their coordinates.
On the other hand, a DWA plate has the large star field for search for objects.
Figures 2 and 3 illustrated the results of searching the plates with the satellites. Trajectories of movement of
the planets (Saturn, Uranus, Neptune, Pluto) on each coordinate are shown in dependency on time. The points
present the centers of plates available in the archive for the telescopes DLA and DWA.
There are a few objective difficulties which influence on a successful searching the necessary plates: 1) nega-
tive planets’ declinations; 2) simultaneous finding the necessary plate for an given area and exposing date in
accordance with ephemeris; 3) astrometric suitability of the found plate.
We developed a program for plate search using the database with data records and planet’s (satellite’s)
ephemeris. Then, we verified this search method. As a result, we have found a small number of plates (15) with
the exception of those, which were processed within the framework of the program of observations of the external
c© S. Shatokhina, O. Yizhakevych, 2004
570
Figure 1. The distribution of observations on time for the DLA and DWA telescopes
Figure 2. The trajectories of the planet’s movement and the dispersion of observations on time for telescope DLA
571
Figure 3. The trajectories of the planet’s movement and the dispersion of observations on time for telescope DWA
planets and their satellites. Unfortunately, any of them is not acceptable for the precise astrometry. It is possible
that the results would be more successful when we involve more plates obtained with the aid of other telescopes
into the process of search.
[1] Golovnya V. V. The minor planets bank of plates obtained using the Zeiss Double Wide-angle Astrograph the MAO
NASU in Kyiv. [http://www.mao.kiev.ua/ast/minortxt.html].
[2] Pakulyak L., Kharchenko N., Izhakevich E., et al. Data base of photographic observations of celestial bodies
Golosiiv observatory in Kiev // Newsletter.–1997.–N 9.–P. 13–15.
[3] Yizhakevych O., Kulyk I., Major S., Shatokhina S. Catalogue of astrometric positions of the satellites of Saturn,
Uranus, and Neptune at 1990 opposition. [http://www.mao.kiev.ua/ast/sat1/90 txt.htm].
[4] Yizhakevych O., Shatokhina S. The preliminary list (card-index) of photographic observations of some se-
lected objects obtained using the Double Wide-angle Astrograph (DWA) of the Main Astronomical Ob-
servatory of the National Academy of Sciences of Ukraine (MAO NASU) in Kyiv during 1976–1996.
[http://www.mao.kiev.ua/ast/astrom.htm].
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