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II/171 Parenago Catalog of Stars in Orion Nebula (Parenago 1954)
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Machine-Readable version of the Parenago Catalogue of stars
in the area of the Orion Nebula
Parenago P.P.
<Trudy Gos. Astron. Inst. im. Shternberga, 25 (1954)>
=1954TrSht..25....1P
Malkov O.Yu.
<Bull. Inf. CDS 40, 13 (1992)>
=1992BICDS..40...13M
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ADC_Keywords: Magnitudes, photographic ; Nebulae ; Stars, variable
Description:
The present catalogue is a machine-readable version of the catalogue
of stars in the area of the Orion nebula, published by P.P. Parenago
(1954). The sky area between 5h 24m and 5h 36m in right ascension
(1900.0) and between -4 and -7 degrees in declination (1900.0),
containing the Orion nebula, has been investigated in that work.
Ten of variable stars in original Parenago (1954) catalogue had CSV
numbers (Kukarkin et al., 1951) but since that time all of them were
confirmed as variables and included in GCVS (Kholopov et al., 1985a&b,
1987). We superseded CSV-numbers by GCVS-names in the machine-readable
version for the following stars:
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Number in CSV-number GCVS-name
the catalogue
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1605 606 V372 ORI
1613 607 V373 ORI
1635 608 V374 ORI
1713 609 V375 ORI
1748 610 V387 ORI
1762 100569 V376 ORI
1974 617 V377 ORI
2183 625 V388 ORI
2393 630 V380 ORI
2478 634 V381 ORI
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
catalog.dat 51 2983 The Parenago Catalogue
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See also:
V/73 : Emission-Line Stars of the Orion Population (Herbig+ 1988)
III/177 : H-alpha emission stars in the Orion region (Wiramihardja+ 1993)
Byte-by-byte Description of file: catalog.dat
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Bytes Format Units Label Explanations
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1 A1 --- Member *[*] asterisk if star is a member.
2- 5 I4 --- Parenago Sequential number.
6 A1 --- m_Parenago *[A] Blank for one star
8 I1 h RAh [5] Right Ascension 1900 (hours)
10- 11 I2 min RAm Right Ascension 1900 (minutes)
13- 14 I2 s RAs Right Ascension 1900 (seconds)
15 A1 --- DE- [-] Declination 1900 (sign)
16- 17 I2 deg DEd [4/7] Declination 1900 (degrees)
19- 22 F4.1 arcmin DEm Declination 1900 (minutes)
24- 27 F4.1 mag mpg *[2/18]? Photographic magnitudes.
28 A1 --- n_mpg *[ENS] Flag on mpg
30 A1 --- l_mpv [<] '<' should be read as "mpv fainter than"
31- 34 F4.1 mag mpv [2/18]? photovisual magnitudes, if existing
36- 43 A8 --- GCVS Name of variable star in GCVS <II/139>
45- 51 A7 --- SpType *Spectral type
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Note on Member:
the asterisk is set if a star is a member of the Orion nebula, blank
otherwise. Probably, not every member of the nebula is marked by '*',
but as Parenago (1954) noted "it was better to omit some of them
(members), than to include nonmember stars" (p.250). Altogether 634
stars have asterisks.
Note on m_Parenago:
There are two different stars with number 2617 in the catalogue:
2617 and 2617A.
Note on mpg:
Blank when the star is variable; in that case the corresponding
designation from GCVS (Kholopov et al., 1985a&b, 1987) appears in
columns 36-45.
Note on n_mpg: the flag has the following meaning:
'E' - if photographic magnitude represents approximate estimation
of visual or infrared magnitudes;
'N' - if the star is in the nebula and its influence
can be perceptible;
'S' - if the influence of the nebula is strong;
blank otherwise.
Note on SpType:
the spectral type (if existing) is a mean value both from literature
and from Parenago's classification.
The peculiarities 'e', 'ea' (read "e alpha") and 'eb' (read "e beta")
mean hydrogen emission at the moment of observations.
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References:
Kholopov P.N., Samus' N.N., Frolov M.S., Goranskij V.P.,
Gorynya N.A., Kireeva N.N., Kukarkina N.P., Kurochkin
N.E, Medvedeva G.I., Perova N.B., Shugarov S.Yu. 1985a,
General Catalogue of Variable Stars, Fourth Edition,
vol.I, Nauka, Moscow. (Catalog <II/139>)
Kholopov P.N., Samus' N.N., Frolov M.S., Goranskij V.P.,
Gorynya N.A., Kazarovets E.V., Kireeva N.N., Kukarkina
N.P., Kurochkin N.E, Medvedeva G.I., Perova N.B.,
Rastorguev A.S., Shugarov S.Yu. 1985b, General
Catalogue of Variable Stars, Fourth Edition, vol.II,
Nauka, Moscow. (Catalog <II/139>)
Kholopov P.N., Samus' N.N., Frolov M.S., Goranskij V.P.,
Gorynya N.A., Karitskaya E.A., Kazarovets E.V., Kireeva
N.N., Kukarkina N.P., Medvedeva G.I., Pastukhova E.N.,
Perova N.B., Shugarov S.Yu. 1987, General Catalogue of
Variable Stars, Fourth Edition, vol.III, Nauka, Moscow.
(Catalog <II/139>)
Kukarkin B.V., Parenago P.P., Efremov Yu.I., Kholopov P.N.
1951, Catalogue of Suspected Variable Stars, Moscow.
Parenago P.P. 1954, "Trudy Gosudarstvennogo Astronomicheskogo
Instituta im Shternberga", vol.25.
Historical Notes:
The catalogue was keypunched at the CDS and was checked at the
Soviet Center of Astronomical Data. It was documented by
O.Yu. Malkov in 1992.
* 04-Oct-1997: documentation standardized at CDS (F. Ochsenbein)
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(End) Malkov O.Yu (25-Feb-1992), Francois Ochsenbein [CDS] 04-Oct-1997