J/ApJS/73/661 H II regions in M 101 (Hodge+ 1990) ================================================================================ The H II regions of M 101. I. An atlas of 1264 emission regions Hodge P., Gurwell M., Goldader J.D., Kennicutt R.C. Jr. =1990ApJS...73..661H (SIMBAD/NED BibCode) ================================================================================ ADC_Keywords: Atlases ; H II regions Keywords: galaxies: individual (M101) - nebulae: H II regions Abstract: A previous survey of the H II regions in M101 (Hodge and Kennicutt) has been extended by a series of CCD images and image tube plates of the galaxy, approximately tripling the number of known emission regions. This paper provides maps and a catalog of a total of 1264 H II regions in M101. Objects: ---------------------------------------------------------- RA (2000) DE Designation(s) ---------------------------------------------------------- 14 03.3 +54 21 M101 = NGC 5457 ---------------------------------------------------------- File Summary: -------------------------------------------------------------------------------- FileName Lrecl Records Explanations -------------------------------------------------------------------------------- ReadMe 80 . This file table1 39 660 H II regions with positions from CCD frames table2 40 604 H II regions with positions from image tube plates table3 15 109 H II regions within NGC complexes -------------------------------------------------------------------------------- Byte-by-byte Description of file: table1 table2 -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 4 I4 --- Seq Sequental number 6- 10 A5 --- Frame CCD frame (table1) or image tube plate localisation (table2) 12- 13 I2 h RAh Right ascension (J2000.0) 15- 16 I2 min RAm Right ascension (J2000.0) 18- 21 F4.1 s RAs Right ascension (J2000.0) 23 A1 --- DE- Declination sign 24- 25 I2 deg DEd Declination (J2000.0) 27- 28 I2 arcmin DEm Declination (J2000.0) 30- 31 I2 arcsec DEs Declination (J2000.0) 33- 35 I3 --- N1982 ? Chart number in Hodge & Kennicutt, 1983ApJ...267..563H 37- 39 I3 --- N1969 ? Chart number in Hodge, 1969ApJS...18...73H -------------------------------------------------------------------------------- Byte-by-byte Description of file: table3 -------------------------------------------------------------------------------- Bytes Format Units Label Explanations -------------------------------------------------------------------------------- 1- 8 A8 --- NGC NGC name 10- 13 I4 --- HII HII region number -------------------------------------------------------------------------------- History: Prepared via OCR at CDS. ================================================================================ (End) Marie-Jose Wagner, Patricia Bauer [CDS] 02-May-1997