7068A VII/68A Dark Nebulae and Globules for l=240-360deg J V Feitzinger J A Stuewe Astron. Astrophys. Suppl. Ser. 58 365 1984 1984A&AS...58..365F J V Feitzinger J A Stuewe Astron. Astrophys. Suppl. Ser. 63 203 1986 1986A&AS...63..203F Globules Nebulae (adapted from Anne C. Raugh, NASA STI-T-1-5810-508-86) The catalog is a compilation of data gleened from a study of the European Southern Observatory Quick Blue Survey (ESO(b)) and SRC-J Sky Atlas on 489 dark clouds and 331 globules. The data compiled include position, size, opacity and morphological classification (in the system of van den Bergh, 1972). Also included is a FITS file containing a 500x1400 pixel map of the survey area.

FEST Running Number --- Field Field number in ESO/SRC Survey --- Foil Foil (SRC) or Plate (ESO) number=1 In general, the SRC-J foils were the primary source of data and the corresponding ESO(B) glass plates were used as a validity check. When the foil was not available the plate became the primary source. "ESO" indicates the data were taken from the ESO(B) glass plate of the survey field. "SRC" indicates the data were taken from the SRC-J foil of the survey field. --- Seq Number in field number=2 Generally this is an integer, but in two cases (both globular filaments) this is a Roman numeral, right-justified within the character field. --- Desc Two-letter code description number=3 the two-letter code describing the appearance of the object: CG Cometary globule DC Dark cloud DF Dark filament EN Embedded in (bright) nebulosity GF Globular filament ST Worm track or elephant trunk (equivalent to WT) TA Tail of a cometary globule WT Worm track or elephant trunk (equivalent to ST) --- GLON Galactic longitude of center deg GLAT Galactic latitude of center deg RAh Right Ascension 1950 (hours) h RAm Right Ascension 1950 (minutes) min DE- Declination 1950 (sign) --- DEd Declination 1950 (degrees) deg DEm Declination 1950 (minutes) arcmin Area Area (for dark nebulae) deg2 Mult Number of globules ("globules" file) number=8 if the object is actually a complex of globules, Mult is the number of individual globules. The coordinates given refer to the approximate center of the entire complex. --- OpClass Opacity class number=4 Opacity on a scale of 1 to 6, 6 being the most opaque. --- Class van den Bergh Classification number=5 van den Bergh classification scheme consists of four different classes, each denoted by a single Greek letter: ALPHA Amorphous cloud exhibiting very fuzzy or indistinct edges BETA Clouds with some structure and relatively well-defined edges GAMMA Absorption features with sharp edges which are not located in H II regions DELTA Sharp-edged absorption features located in H II regions For objects that fall between classes, the Greek letters are abbreviated as A B G D respectively. For some cometary globules the head and tail have distinct opacities and van den Bergh classifications. --- i Galactic inclination angle number=6 Inclination angle of elongated dark clouds measured counterclockwise against the galactic plane,:eq. in degrees. deg Xmm X-plate coordinate mm Ymm Y-plate coordinate mm Ident Cross-references number=7 Cross references consist in two-letter code followed by an up to three-digit number that identifies the object as also being listed in the reference denoted by the letter code. SL Sandqvist and Lindroos S Sandqvist (1977) CG Zealy et al. (1983) The numbers are those of the object in the cited paper. In some cases the object appeared in more than one paper, in which case there are two or more full references, or appears more than once in a single paper, in which case the additional numbers are separated by commas (for example, the cross-reference for dark nebula number 225 is S 155,157) --- skymap.fitFITS Map of survey area Anne C. Raugh ADC Francois Ochsenbein CDS 1995Jun13 UNKNOWN UNKNOWN * 1986 (Anne C. Raugh, ADC): The catalogue was sent to the Astronomical Data Center (ADC), NASA Goddard Space Flight Center, by the Centre de Donnees Astronomiques (CDS), in February 1986. The original tape contained four text files formatted in the same manner as in the published catalog. The catalog was so well formatted that the only editing done was to correct several minor typographic errors and to replace the character string "---" indicating a null value for the inclination field, with a string of blanks, in order to avoid errors in trying to read that field with a FORTRAN I5 format. A FORTRAN program was run that checked the validity of each field according to its data type and value. * 13-Jun-1995: standardised at CDS, and homogenized the formats of the two files "darkneb" and "globules" such that they share the same "Byte-by-Byte description" VII_68A.xml