J/AN/323/484 Accurate coordinates of Planetary Nebulae (Kohoutek+, 2002)
Accurate coordinates of Planetary Nebulae.
Kohoutek L., Kuehl D.
<Astron. Nachrichten, 323, 484 (2002)>
=2002AN....323..484K 2002AN....323..484K
ADC_Keywords: Planetary nebulae ; Positional data
Keywords: planetary nebulae: general; stars: evolution
Description:
Accurate optical coordinates of 734 PNe, measured on the charts of the
Digitized Palomar Sky Survey (DSS-2), are presented. As a result of
the discussion about the external accuracy the constants -0.8" in RA
and +0.8" in DEC should be added to the coordinates measured by us.
They were used but rounded off already in CGPN(2000).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 68 761 Accurate coordinates
table3.dat 76 41 Central star candidates
remarks.dat 111 58 Remarks (concerns PNe and central stars)
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See also:
IV/24 : Catalogue of Galactic Planetary Nebulae (Kohoutek, 2001)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1 A1 --- n_PK [*M] Possible (*) or Misclassified (M) PN.
2- 10 A9 --- PK PK Designation
12- 32 A21 --- Name Other name of the PN
33- 35 A3 --- n_Name [old ] old for old coordinates
37- 38 I2 h RAh Right Ascension J1950 (hours)
40- 41 I2 min RAm Right Ascension J1950 (minutes)
43- 47 F5.2 s RAs Right Ascension J1950 (seconds)
49 A1 --- DE- Declination J1950 (sign)
50- 51 I2 deg DEd Declination J1950 (degrees)
53- 54 I2 arcmin DEm Declination J1950 (minutes)
56- 59 F4.1 arcsec DEs Declination J1950 (seconds)
62 I1 --- C [1,5] Positional accuracy category (1)
65 A1 --- Cs [s] s: suspected central star measured
(see Table 3)
67- 68 I2 --- Rem [1/39]? Remarks, in remarks.dat file
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Note (1): this quality (1=best) indicates the accuracy of the position:
1 = 1meas. σ=0.12arcsec
2 = 4meas. σ=0.14arcsec
3 = 4-6meas. σ=0.18arcsec
4 = 4meas. σ=0.49arcsec
5 = σ up to 12.8arcsec
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1 A1 --- n_PK [*M] Possible (*) or Misclassified (M) PN.
2- 10 A9 --- PK PK Designation
12- 21 A10 --- PNG Designation in PNG (V/84) catalog
24- 33 A10 --- Name Other name of the PN
35- 36 I2 h RAh Right Ascension J2000 (hours)
38- 39 I2 min RAm Right Ascension J2000 (minutes)
41- 45 F5.2 s RAs Right Ascension J2000 (seconds)
47 A1 --- DE- Declination J2000 (sign)
48- 49 I2 deg DEd Declination J2000 (degrees)
51- 52 I2 arcmin DEm Declination J2000 (minutes)
54- 57 F4.1 arcsec DEs Declination J2000 (seconds)
60- 65 F6.2 deg GLon Galactic longitude
67- 72 F6.2 deg GLat Galactic latitude
75- 76 I2 --- Rem [40,50]? Remarks, in remarks.dat file
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Byte-by-byte Description of file: remarks.dat
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Bytes Format Units Label Explanations
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1- 2 I2 --- Rem Remark number
5 A1 --- --- [(]
6- 14 A9 --- PK PK number
15 A1 --- --- [)] Uncertainty flag on PK number
17-111 A95 --- Text Text of the remark
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History:
* 12-Sep-2002: Original version
* 26-Apr-2009: Reformatted at CDS to isolate the * or M indication
of possible/miclassified PN (was originally mixed with the
PK name). Added table3.
Acknowledgements:
Lubos Kohoutek [lkohoutek(ar)hs.uni-hamburg.de]
(End) L. Kohoutek, D. Kuehl [Hamburg Observatory] 12-Sep-2002