Electronic catalogue of the cometary physical characteristics
Lack of the new catalogues of the physical characteristics of comets (the last one was published in 1985) was the reason of our work. Vsehsvyatskiy and Andrienko catalogues of the physical characteristics of comets from 1950 to 1985 and the data on the comets orbital elements of Jet Propulsion Labor...
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Головна астрономічна обсерваторія НАН України
2012
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| Cite this: | Electronic catalogue of the cometary physical characteristics / J. Andrienko, V. Reshetnyk // Advances in Astronomy and Space Physics. — 2012. — Т. 2., вип. 1. — С. 79-81. — Бібліогр.: 7 назв. — англ. |
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nasplib_isofts_kiev_ua-123456789-1191552025-02-09T14:31:33Z Electronic catalogue of the cometary physical characteristics Andrienko, J. Reshetnyk, V. Lack of the new catalogues of the physical characteristics of comets (the last one was published in 1985) was the reason of our work. Vsehsvyatskiy and Andrienko catalogues of the physical characteristics of comets from 1950 to 1985 and the data on the comets orbital elements of Jet Propulsion Laboratory NASA were used for compilation of our electronic catalogue. The special software was developed for this task. The input data were identified, corrected and transformed to the unified format. The data from IAU Central Bureau for Astronomical Telegrams from 1969 to 2008 years were used for determination of the comets visual magnitudes. We obtained the apparent magnitudes for 943 comets. Some of them were used for the comet absolute magnitude calculation. The main criterion for determination of the absolute magnitude was the presence of enough data on their apparent magnitudes. We also obtained the light curves for some comets. 2012 Article Electronic catalogue of the cometary physical characteristics / J. Andrienko, V. Reshetnyk // Advances in Astronomy and Space Physics. — 2012. — Т. 2., вип. 1. — С. 79-81. — Бібліогр.: 7 назв. — англ. 2227-1481 https://nasplib.isofts.kiev.ua/handle/123456789/119155 en Advances in Astronomy and Space Physics application/pdf Головна астрономічна обсерваторія НАН України |
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Lack of the new catalogues of the physical characteristics of comets (the last one was published in 1985) was the reason of our work. Vsehsvyatskiy and Andrienko catalogues of the physical characteristics of comets from 1950 to 1985 and the data on the comets orbital elements of Jet Propulsion Laboratory NASA were used for compilation of our electronic catalogue. The special software was developed for this task. The input data were identified, corrected and transformed to the unified format. The data from IAU Central Bureau for Astronomical Telegrams from 1969
to 2008 years were used for determination of the comets visual magnitudes. We obtained the apparent magnitudes for 943 comets. Some of them were used for the comet absolute magnitude calculation. The main criterion for determination of the absolute magnitude was the presence of enough data on their apparent magnitudes. We also obtained the light curves for some comets. |
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Andrienko, J. Reshetnyk, V. |
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Andrienko, J. Reshetnyk, V. Electronic catalogue of the cometary physical characteristics Advances in Astronomy and Space Physics |
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Andrienko, J. Reshetnyk, V. |
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Andrienko, J. |
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Electronic catalogue of the cometary physical characteristics |
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Electronic catalogue of the cometary physical characteristics |
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Electronic catalogue of the cometary physical characteristics |
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Electronic catalogue of the cometary physical characteristics |
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Electronic catalogue of the cometary physical characteristics |
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electronic catalogue of the cometary physical characteristics |
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Головна астрономічна обсерваторія НАН України |
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2012 |
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https://nasplib.isofts.kiev.ua/handle/123456789/119155 |
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Electronic catalogue of the cometary physical characteristics / J. Andrienko, V. Reshetnyk // Advances in Astronomy and Space Physics. — 2012. — Т. 2., вип. 1. — С. 79-81. — Бібліогр.: 7 назв. — англ. |
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Advances in Astronomy and Space Physics |
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AT andrienkoj electroniccatalogueofthecometaryphysicalcharacteristics AT reshetnykv electroniccatalogueofthecometaryphysicalcharacteristics |
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Electronic catalogue of the cometary physical characteristics
J. Andrienko∗, V. Reshetnyk
Advances in Astronomy and Space Physics, 2, 79-81 (2012)
c© J. Andrienko, V. Reshetnyk, 2012
Taras Shevchenko National University of Kyiv, Glushkova ave., 4, 03127, Kyiv, Ukraine
Lack of the new catalogues of the physical characteristics of comets (the last one was published in 1985) was the
reason of our work. Vsehsvyatskiy and Andrienko catalogues of the physical characteristics of comets from 1950 to
1985 and the data on the comets orbital elements of Jet Propulsion Laboratory NASA were used for compilation of
our electronic catalogue. The special software was developed for this task. The input data were identified, corrected
and transformed to the unified format. The data from IAU Central Bureau for Astronomical Telegrams from 1969
to 2008 years were used for determination of the comets visual magnitudes. We obtained the apparent magnitudes
for 943 comets. Some of them were used for the comet absolute magnitude calculation. The main criterion for
determination of the absolute magnitude was the presence of enough data on their apparent magnitudes. We also
obtained the light curves for some comets.
Key words: astronomical data bases, comets, catalogues
introduction
In cometary astronomy the specialized catalogues
are used. They contain only the parameters of
cometary orbits or information about groups of
comets selected by the certain attribute such as an
observer name. Sometimes it is useful to know the
photometric parameters of comets for each of them
approaching the Sun. Such the data were published
in Vsehsvyatskiy and Andrienko catalogues of the
physical characteristics of comets. They contain in-
formation about 1166 passages of comets since 466
BC to 1985 [1]-[7]: name, orbital elements, absolute
magnitude H10, photometric parameters Hy and n,
diameter of the head, tail length. The values were
reduced to a standard distance to the Earth. The
number of estimates of cometary brightness that
were used to determine the H10, Hy and n is given
also. For the comets with perihelion passage af-
ter 1985 no catalogues of physical parameters were
published. To fill this gap we created a new gen-
eral electronic catalogue of comets with photometric,
geometric and orbital characteristics of all known
comets of XIX, XX and early XXI century.
data processing
The special software was developed for creation
of the catalogue and testing it. Software allows to
process large volumes of the data. Catalogues [1]-
[7] were digitized, verified and have used as a ba-
sis for a new electronic catalogue. The electronic
catalogues of the orbital elements of comets from
NASA1,2 were used to extend and refine the pre-
vious data. As a result of comparison of common
parts of the available catalogues some inaccuracies
and their errors were found. To resolve ambiguities
arose in the catalogue, the comparison of observed
data with information from outside sources3,4 were
used. The comet’s names were corrected, they were
changed according to a modern standard. Names
that are not used now were also preserved.
The resulting catalogue is presented in tabular
form. It consists of fields similar to the published
version and contains information about 3597 ob-
served passages of the comets that passed or will
pass perihelion since 1801 to 2012. 2341 of them are
aperiodic comets and 1256 are periodic ones that
returned (see Table 1).
Table 1: Statistics of the comets observation
P > 1000 1000 > P > 15 P < 15
Period Total years years years
1800-1849 94 63 9 22
1850-1899 223 129 19 75
1900-1949 275 120 25 130
1950-2000 1145 554 91 500
2000-2010 1860 1379 107 374
∗andrienko.j@gmail.com
1http://pds-smallbodies.astro.umd.edu/comet data/comet.catalog
2http://ssd.jpl.nasa.gov/dat/ELEMENTS.COMET
3http://ssd.jpl.nasa.gov/sbdb.cgi
4http://ssd.jpl.nasa.gov/horizons.cgi
79
Advances in Astronomy and Space Physics J. Andrienko, V. Reshetnyk
Distribution of the number of comets which ap-
proach to the Sun is shown in Fig. 1. There are
noticeable achievements in recent years in comets
discovery. Huge amount of the comets was discov-
ered in the mid of nineties after the launch of SOHO
and STEREO spacecraft for study the Sun.
In Fig. 2 the dependence of the comet’s inclina-
tion on their argument of perihelion is shown. Here
some groups of comets can be seen. One of that
rgoups (marked with arrow) is Kreutz comet family.
Fig. 1: Distribution of the number of comets approach-
ing to the Sun.
Fig. 2: Dependence inclination – argument of periap-
sis.
The database of visual magnitudes obtained from
IAU Central Bureau for Astronomical Telegrams
(CBAT)5 is added to the catalogue.
At the first step the special software was created
that got data from International Comet Quarterly
in digital form. The information is separated into
files. Total amount of the files is 6800. Information
about 941 comets was extracted from them. Every
comet data are collected in a single file which con-
tains the date of observation, apparent magnitude
and observation device parameters that is enough to
build the light curve. Periodic comet files contain
apparent magnitude information for more than one
perihelion passage.
The catalogue was extended with absolute mag-
nitude H10 value and photometric parameters Hy
and n using apparent magnitude data. The follow-
ing equations were used for calculation:
H10 = m− 10 lg r − 5 lg ∆
m = Hy + 5 lg ∆− 2.5n lg r,
where r is the comet-Sun distance in AU, ∆ is the
comet-Earth distance in AU. Correction for aperture
was not carried out.
In Fig. 3 the absolute magnitudes of the observed
comets (H10) are presented. One can see that dur-
ing last 200 years more and more weaker objects are
detected.
Fig. 3: Absolute magnitudes of the observed comets.
Light curves of some observed comets, 1P/Halley,
C/1995 O1 (Hale-Bopp) and C/1996 B2 (Hyaku-
take), are shown as example of the obtained data
in Fig. 4–6. The amount of the observed data is
maximum near perihelion. The light curve form cor-
responds to the modern theoretical conception. The
relative position of the comet, the Sun and the Earth
explains the compound form of the light curve.
5http://www.iau.org
80
Advances in Astronomy and Space Physics J. Andrienko, V. Reshetnyk
conclusions
The special software was developed for the comet
catalogue compilation. Our software identifies and
corrects the input data. New electronic catalogue
consists of the data about orbital and photometric
parameters for 3597 comet passages. The apparent
magnitude for 943 comets were obtained and used
for the absolute magnitude comet calculation.
Fig. 4: Light curve of the comet 1P/Halley.
Fig. 5: Light curve of the comet C/1995 O1 (Hale-
Bopp).
Fig. 6: Light curve of the comet C/1996 B2 (Hyaku-
take).
references
[1] Andrienko D. A. Karpenko A.V. ’Physical characteristic
of the comets in 1976-1980’, 1987, Moscow, Nauka (in
Russian)
[2] Andrienko D. A. Karpenko A.V. ’Physical characteristic
of the comets in 1981-1985’, 1993, Kyiv, Phoenix (in Rus-
sian)
[3] Vsehsvyatskiy S.K. ’Physical characteristics of the
comets’, 1958, Moscow, Nauka (in Russian)
[4] Vsehsvyatskiy S.K. ’Physical characteristics of the comets
observed in 1954-1960’, 1966, Moscow, Nauka (in Rus-
sian)
[5] Vsehsvyatskiy S.K. ’Comets 1961-1965’, 1967, Moscow,
Nauka (in Russian)
[6] Vsehsvyatskiy S.K. ’Physical characteristics of the comets
in 1971-1975’, 1979, Kyiv, Naukova Dumka (in Russian)
[7] Vsehsvyatskiy S.K., Ilchishina N. I. ’Physical character-
istics of the comets in 1965-1970’, 1974, Moscow, Nauka
(in Russian)
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