VII/20 Catalogue of HII Regions (Sharpless 1959)
Catalogue of HII Regions
Sharpless S.
<Astrophys. J. Suppl. Ser. 4, 257 (1959)>
=1959ApJS....4..257S 1959ApJS....4..257S
ADC_Keywords: H II regions; Nebulae
Description:
The catalogue describes the position, maximum angular diameters,
classifications according to form, structure and brightness,
and the number of associated stars.
The acronym used in the literature to designate objects from
this catalogue is Sh 2 (e.g. Sh 2-1 for the first HII region
of the catalogue)
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
adc.doc 79 392 ADC Documentation by Theresa A. Nagy
catalog.dat 57 313 The Sharpless (Sh 2) Catalogue
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See also:
VII/216 : H-α emission regions in Southern Milky Way (Rodgers+ 1960)
Byte-by-byte Description of file: catalog.dat
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Bytes Format Units Label Explanations
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1- 4 I4 --- Sh2 [1/313]+ Sharpless HII catalog number
5- 8 I4 0.1deg GlLund [0/3600[ Galactic longitude based on
Lund pole
9- 12 I4 0.1deg GbLund [-900/+900] Galactic latitude based on
Lund pole
13- 16 I4 0.1deg GLon [0/3600[ Galactic longitude (1)
17- 20 I4 0.1deg GLat [-900/+900] Galactic latitude (1)
21- 22 I2 h RAh Hours RA, 1900.0
23- 24 I2 min RAm Minutes RA, 1900.0
25- 27 I3 0.1s RAds Deci-seconds RA, 1900.0
28 A1 --- DE- Sign Dec, 1900.0
29- 30 I2 deg DEd Degrees Dec, 1900.0
31- 32 I2 arcmin DEm Minutes Dec, 1900.0
33- 34 I2 arcsec DEs Seconds Dec, 1900.0
35- 36 I2 h RA1950h Right Ascension (hours) 1950 (1)
37- 38 I2 min RA1950m Right Ascension (minutes) 1950 (1)
39- 41 I3 0.1s RA1950ds Right Ascension (deci-seconds) 1950 (1)
42 A1 --- DE1950- Declination (sign) 1950 (1)
43- 44 I2 deg DE1950d Declination (degrees) 1950 (1)
45- 46 I2 arcmin DE1950m Declination (minutes) 1950 (1)
47- 48 I2 arcsec DE1950s Declination (seconds) 1950 (1)
49- 52 I4 arcmin Diam Maximun angular diameter of H II region
53 I1 --- Form [1/3] Classification as to form:
1=circular; 2=elliptical; 3=irregular
54 I1 --- Struct [1/3] Classification as to structure,
from 1=amorphous to 3=filamentary
55 I1 --- Bright [1/3] Classification as to brightness,
from 1=faintest to 3=brightest
56- 57 I2 --- Stars Number of associated stars with the
H II region
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Note (1): Not in the original publication
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Historical Notes:
* 31-Jan-1995: From the "Selected Astronomical Catalogs" Vol. 1 CD-ROM (1992),
directory /nonstell/nebulae/hii with a few modifications:
=> The 'S' in column 1 has been dropped
=> The blank hours of RA 1900 were transformed to zero.
(End) Francois Ochsenbein [CDS] 31-Jan-1995