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II/238 Dahlmark variables (Dahlmark, 1982-2001)
Dahlmark variables. Dahlmark L. <IAU Inform. Bull. Var. Stars, 2157, 2878, 3855, 4329, 4458, 4642, 4734, 4898, 5181 (1982-2001)> =1982IBVS.2157....1D +1986IBVS.2878....1D +1993IBVS.3855....1D +1996IBVS.4329....1D +1997IBVS.4458....1D +1998IBVS.4642....1D +1999IBVS.4734....1D +2000IBVS.4898....1D +2001IBVS.5181....1D
ADC_Keywords: Stars, variable ; Photometry Description: Since 1967 32 fields in the Milky Way were observed for variable stars. * New variable stars in Cygnus (1982IBVS.2157....1D) [8/65] Survey of an area of 20°x15° centered at 20h50m, +45° in Cygnus. This area has been followed photographically in two colours during the period 1967 to 1981. As a rule one observation per summer was obtained. * New variable stars in Cassiopeia (1986IBVS.2878....1D) [66/105] Survey in an area 20°x15° centered at 1h06m, +60°01'. Seventeen plate pairs exposed in the period 1967 to 1981 were collected and treated in the same way as described in the previous report. These observations provide approximate B and V magnitudes. In addition, six exposures were obtained in the period August 8 to September 23, 1985 on Technical Pan film. * New variable stars in Cygnus, Lyra and Vulpecula (1993IBVS.3855....1D) [106/185] Area of 20°x15° centred at 19h46m +30°. * New variable stars in Cygnus, Lacerta and Andromeda (1996IBVS.4329....1D) [186/220] Area of 20°x15° centered at 20h40m, +45° (1950). * New variable stars in the northern Milky Way (1997IBVS.4458....1D) [221/280] Area of 20°x15° centered at 22h42m, +60° (1950) * New variable stars in the northern Milky Way (1998IBVS.4642....1D) [281/315] Results of a variable-star search in the 20°x15° area centered at 20h18m, +60° (1950). * New variable stars in Andromeda and Cassiopeia (1999IBVS.4734....1D [316/341] Results of a variable-star search in the 20°x15° area centered at 0h30m, +45° (1950). * New variable stars in Lyra and Cygnus (2000IBVS.4898....1D) [342/366] Results of a variable-star search in the 20°x15° area centered at 19h00m/+45° (1950). * New variable stars along the northern Milky way (2001IBVS.5181....1D) [367/420] Results of a variable-star search in the 20°x15° area centered at 21h22m/+° (1950). File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file tab82-96.dat 89 213 New variables in Cygnus (8/65), Cassiopeia (66/105), Cyg, Lyr and Vul (106/185), And, Gyg, Lac (186/220) northern Milki Way (221/280) tab97-01.dat 106 213 New variables in the northern Milky Way (221-315), And and Cas (316-341), Lyra and Cygnus (342-366), along the northern Milky Way (367-420) b-v97-98.dat 75 101 New variables in northern Milky Way (221-315) b-r99-01.dat 91 118 New variables in And and Cas (316-341), Lyra and Cygnus (342-366), along the northern Milky Way (367-420) not82-96.dat 80 41 Notes of tab82-96.dat file not97-01.dat 80 42 Notes of tab97-01.dat file notescol.dat 80 44 Notes of b-r99-01.dat and b-v97-98.dat files
See also: IV/29 : Identification of Dahlmark variables (Skiff+, 1997) Byte-by-byte Description of file: tab82-96.dat
Bytes Format Units Label Explanations
1- 3 I3 --- LD [8/280] LD (Lennart Dahlmark) number 5- 13 A9 --- Name LD designation or other name 16- 17 I2 h RAh Right ascension (1950) 19- 20 I2 min RAm Right ascension (1950) 22- 25 F4.0 s RAs Right ascension (1950) 27 A1 --- DE- Declination sign (1950) 28- 29 I2 deg DEd Declination (1950) 31- 32 I2 arcmin DEm Declination (1950) 34- 35 I2 arcsec DEs ? Declination (1950) 37- 40 F4.1 mag Vmax Maximum V magnitude (G1) 41 A1 --- --- [-] 42 A1 --- l_Vmin [(<>] Limit flag on Vmin 43- 46 F4.1 mag Vmin ?=45 Minimum V magnitude (G1) 48 A1 --- l_B-V [>)] Limit flag on B-V 49- 52 F4.1 mag B-V ? B-V colour index 53 A1 --- u_B-V [?] Uncertainty flag on B-V 55- 59 A5 --- Type Type of variable 60- 66 I7 d Epoch ? Epoch of maximum 68- 70 I3 d Per ? Period 71 A1 --- u_Per [?] Uncertainty flag on Per 73 A1 --- n_Per [c] c: period constant between 1967 and 1992 75- 78 F4.1 mag NStar ? Approximate V magnitude of a close neighbour star that may influence magnitude estimations made with an instrument with small focal length. 80- 89 A10 --- Notes Notes, separated by comma, in not82-96.dat file
Byte-by-byte Description of file: tab97-01.dat
Bytes Format Units Label Explanations
1- 3 I3 --- LD [221/420]? LD number 5- 13 A9 --- Name Name (LD if exist) 14 A1 --- n_Name [*] *: Note in not97-01.dat file 16- 17 I2 h RAh Right ascension (J2000) 19- 20 I2 min RAm Right ascension (J2000) 22- 26 F5.2 s RAs Right ascension (J2000) 28 A1 --- DE- Declination sign (J2000) 29- 30 I2 deg DEd Declination (J2000) 32- 33 I2 arcmin DEm Declination (J2000) 35- 38 F4.1 arcsec DEs Declination (J2000) 40 A1 --- rPos [AGSMTg] Source of the position (1) 42- 50 A9 --- GSC GSC designation 52- 62 A11 --- IRAS IRAS designation 63- 85 A23 --- OName Other names (2) 87-106 A20 --- Rem Remarks
Note (1): The coordinates were extracted from either as follows: G = GSC, Cat. I/220 A = U.S. Naval Observatory A1.0 catalogue, Cat. I/243 S = Goddard SkyView facility (Scollick 1997, http://skview.gsfc.nasa.gov/cgi-bin/v3.0/skyview_advanced.pl ) M = 2MASS, Cat. <B/2mass> T = Tycho-2 Cat. I/259 g = GSC-2.2, Cat. I/271 Note (2): Other names: DO = Dearborn red stars catalogue (Lee et al., 1947, Cat. II/68) MSX = MSX catalogue (Cat. V/107) [D75] = Dolidze, 1975AbaOB..47..171D [PCC93] = Palagi et al., 1993, Cat. J/A+AS/101/153 JHHMMSS.ss+DDMMSS.s = ROTSE1 name. Akerlof et al., 2000, Cat. J/AJ/119/1901
Byte-by-byte Description of file: b-v97-98.dat
Bytes Format Units Label Explanations
1- 3 I3 --- LD [8/351]? LD number 5- 13 A9 --- Name LD designation or other name 14 A1 --- n_Name [*] Note in notescol.dat file 16- 17 I2 h RAh Right ascension (J2000) 19- 20 I2 min RAm Right ascension (J2000) 22- 25 F4.1 s RAs Right ascension (J2000) 27 A1 --- DE- Declination sign (J2000) 28- 29 I2 deg DEd Declination (J2000) 31- 32 I2 arcmin DEm Declination (J2000) 34- 35 I2 arcsec DEs ? Declination (J2000) 37- 40 F4.1 mag Vmax Maximum V magnitude (G1) 41 A1 --- --- [-] 42 A1 --- l_Vmin Limit flag on Vmin 43- 46 F4.1 mag Vmin Minimum V magnitude (G1) 48 A1 --- l_B-V Limit flag on B-V 49- 52 F4.1 mag B-V ? B-V colour index 55- 59 A5 --- Type Type of variable 60- 66 I7 d Epoch ? Epoch of maximum 70- 72 I3 d Per ? Period 73 A1 --- u_Per [?:] Uncertainty flag on Per 75 A1 --- n_Per [s] s: short
Byte-by-byte Description of file: b-r99-01.dat
Bytes Format Units Label Explanations
1- 3 I3 --- LD [8/420]? LD number 5- 13 A9 --- Name LD designation or other name 14 A1 --- n_Name [*] Note in notescol.dat file 16- 17 I2 h RAh Right ascension (J2000) 19- 20 I2 min RAm Right ascension (J2000) 22- 26 F5.2 s RAs Right ascension (J2000) 28 A1 --- DE- Declination sign (J2000) 29- 30 I2 deg DEd Declination (J2000) 32- 33 I2 arcmin DEm Declination (J2000) 35- 38 F4.1 arcsec DEs ? Declination (J2000) 40- 43 F4.1 mag Vmax Maximum V magnitude (G1) 44 A1 --- --- [-] 45 A1 --- l_Vmin Limit flag on Vmin 46- 49 F4.1 mag Vmin Minimum V magnitude (G1) 52- 55 F4.1 mag b-r ? b-r colour index 58- 62 A5 --- Type Type of variable 63- 71 F9.1 d Epoch ? Epoch of maximum 72- 73 A2 --- l_Per [≤ ] Limit flag on Per 74- 79 F6.2 d Per ? Period 80 A1 --- u_Per [?:] Uncertainty flag on Per 82- 91 A10 --- Range Period range 1967-1999
Byte-by-byte Description of file: not82-96.dat
Bytes Format Units Label Explanations
1- 3 A3 --- Note Note number 5- 80 A76 --- Text Text of the note
Byte-by-byte Description of file: not97-01.dat notescol.dat
Bytes Format Units Label Explanations
1- 9 A9 --- Name Star name 10- 80 A71 --- Text Text of the note
Global notes: Note (G1): Magnitudes with an accuracy of ±0.2 magnitudes
History: From electronic version of the journal
(End) James Marcout, Patricia Bauer [CDS] 18-Jan-2002
| The document above follows the rules of the Standard Description for Astronomical Catalogues.From this documentation it is possible to generate f77 program to load files into arrays or line by line |
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