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(vsnet 687, Brian Skiff)
In IBVS 4329 (24 April 1996) Lennart Dahlmark has published information about three dozen new variables found on his wide-field photographic surveys of the northern Milky Way. Although semi-accurate positions and charts are provided, no other IDs are made. Since they lie in crowded fields, precise (~1") positions are required if the variables are to be recovered for further study.
I have used Dahlmark's charts to produce the list below. The positions are mostly from either the GSC or the U. S. Naval Observatory's "UJ1.0" CD-ROM star catalogue. The remainder were obtained from inspection of the digitized sky survey at a large image-scale using the Goddard SkyView facility...
http://skview.gsfc.nasa.gov/cgi-bin/v2.3/skyview_advanced
...which allows a grid and other information to be overlaid on the DSS image. The source of the positions is specified in the column 's' (G = GSC, U = UJ1.0, S = SkyView). IRAS and GSC identifications are then given as appropriate.
Dahlmark's positions and charts are fairly good, so there are no serious ambiguities in the identifications. He does query possible variable-star identities, which I have checked using original charts. Such problems arise because the positions for most variable stars were not accurately determined. These are discussed in the remarks.
\Brian Skiff (bas@lowell.edu)
==========
Name RA (2000) Dec s IRAS GSC Remarks
LD 186 21 53 29.3 +44 05 05 G 21514+0543 3197-0543 V1093 Cyg, see note
LD 187 21 57 32.0 +38 24 24 U
LD 188 21 58 53.7 +50 12 01 U 21570+4957
LD 189 22 06 32.9 +48 07 28 U
LD 190 22 07 54.2 +41 05 13 S 22057+4050
LD 191 22 09 05.1 +45 30 29 G 22070+4515 3606-0442
LD 192 22 09 30.9 +52 11 30 G 3618-2113
LD 193 22 09 35.0 +52 12 30 G 3618-0137
LD 194 22 10 15.7 +38 15 46 U 22081+3801 FBS L 1-19
LD 195 22 13 50.0 +43 54 38 G 3211-1072
LD 196 22 14 46.8 +46 54 39 U
LD 197 22 15 58.8 +42 22 48 S 22138+4207
LD 198 22 19 38.2 +48 13 20 U 22175+4757
LD 199 22 23 29.0 +47 44 32 U
LD 200 22 24 49.9 +47 49 24 U
LD 201 22 25 41.0 +50 18 17 S 22236+5002 see note
LD 202 22 26 22.7 +48 24 05 U
LD 203 22 28 13.1 +44 27 52 G 3212-0933
LD 204 22 29 56.5 +45 46 54 U
LD 205 22 31 34.5 +48 16 01 G 22294+4800 3624-1959
LD 206 22 41 10.5 +40 34 11 U
LD 207 22 43 21.0 +41 17 20 G 22410+4101 3222-0149 see note
LD 208 22 45 14.9 +50 51 54 S
LD 209 22 46 21.6 +52 15 39 G 3633-2484 not FK Lac, see note
LD 210 22 49 35.5 +52 18 11 G 22474+5202 3633-2259
LD 211 22 50 15.7 +53 24 18 S 22481+5308
LD 212 22 59 06.4 +49 07 59 S
LD 213 23 01 06.4 +37 50 45 G 3216-1210
LD 214 23 02 02.4 +39 59 51 G 22597+3943 3220-2872
LD 215 23 02 24.0 +41 43 37 G 3224-1028 see note
LD 216 23 06 24.5 +38 15 35 U 23040+3759 3216-2107 see note
LD 217 23 16 25.9 +38 43 48 S 23140+3827
LD 218 23 25 41.7 +45 42 03 S 23233+4525
LD 219 23 31 08.3 +50 02 35 U
LD 220 23 34 07.5 +46 20 05 S 23317+4603 NSV 14621 = SV* R 101
Notes
LD 186 ID with V1093 Cyg verified on chart (Hoffmeister 1965 AN 288, 49).
LD 186 is not = V677 Cyg, which is GSC 3197-0163 at: 21 53 17.7
+44 03 23 (chart on MVS no. 274).
LD 201 ID somewhat uncertain: position is for northeastern star of a pair.
LD 207 spectral type M7 (Dolidze 1975, Byull. Abastumanskaya Astrofiz. Obs.,
47, 171.
LD 209 FK Lac = GSC 3633-2237 at: 22 46 33.5 +52 09 29 (chart on MVS
no. 280).
LD 215 faint on POSS-I red print (R ~16-17), bright in GSC.
LD 216 southwestern star of a pair, resolved in UJ1.0.