Objects found by Mike Collins on UK Nova Patrol Photographs in 1989 Designation Q no. Mag range Date reported Announced on 1950 Position Notes Con Area(s) V667 Cas 1989/1 8.7-13.2 11 Jan 1989 TA EC-241 NSV 01098 Object appeared bright in Dec 1988 but still bright in early 89. 0315+70 Identified as NSV 1098 discovered by Otto Morgenroth in 1936. Cas (12) IRAS PSC lists NSV 1098 as IRAS 03159+7035. Recovery announced on IAUC 4712, BAA Circ. 684, and Yamamoto Circ. 2119. Further magnitude estimates appeared on IAU Circs. 4722, 4764, 4903, 4948, 5157 and 5375. Dietmar Bohme, using 295 Sonneberg plates, suggests Mira variation with JDmax = 2444465 + 347E as announced on TA EC-341. Hans Bengtsson has published details including a finder, sequence and light curve based on Swedish observations in Sky & Telescope, Vol. 80, no. 5, p. 520 (November 1990). Designated V667 Cas on IBVS 3530 (70th Name-List). V666 Cas 1989/17 9.8-13.8 12 Mch 1989 TA EC-276 LD 103 John Isles identified it as LD 103 = DHK 1 on TA EC-286. DHK 1 Lennart Dahlmark first described the star on IBVS 2878. TAV 0157+58 Considered to be a Mira with JDmax = 2447220 + 360E by Daniel Cas 20 Kaiser on IBVS 3313. IRAS 01580+5803 is nearby emission star G-G 1-139. Further details are given in J.AAVSO, vol.18,no.1,p.3-6 (1989). Kaiser (correspondence of 28 May 1990) suggests an improved period of approx. 425 days. Without period analysis I suggest JDmax = 2447680 + 425E as of mid-August 1990 but more observations are needed. Designated V666 Cas on IBVS 3530 (70th Name-List). TASV 1949+51 1989/29 9.4-10.1 4 May 1989 TA EC-295 Cyg 14 Brighter component of pair may have brightened in Feb 1989. Image doubling hindered inspection of negatives. May be IRAS 19492+5122. V836 Her 1989/44 10.4-11.4 5 Jun 1989 TA EC-309 TASV 1809+23 Object appeared suddenly faint on 5 June. Her 57 Identified with HDE 341703. 8 June back to 10.6. Not a known spectroscopic binary. Tristram Brelstaff has found that this is an eclipsing binary with light elements JDmin = 2447758.67 + 8.453E and announced in TA, vol. 26, no. 310, p. 216-7 (1990 February). Designated V836 Her on IBVS 3840 (71st Name-List). TASV 2326+50 1989/49 9.7-10.4 20 Jun 1989 TA EC-312 Cas 18(31) Object appears to have faded. Confusion with NSV 14587. However NSV gives magnitude at max of 13 and Sp M8. IRAS 23269+5056 = SAO 35462 is F8 star at 9.8. Richter+ originally quote NSV object as northern component of close pair. Fainter component confirmed by Martin Mobberley. A TASV designation assigned on 14 July TA EC-318 suggesting that the F star has faded - a double variable! TAV 2034+61 1989/50 9.6-13.5 26 Jun 1989 TA EC-313 Cep 5 (15) Object brightened in May 1989. Identified as IRAS 20341+6137 = Dearborn 38642 NSV 203 1989/51 10.3-(13.3? 1 Jul 1989 TA EC-318 0031+61 Object bright in June 1989. Variable C star. Cas 9 (19) NSV 203 is nearby but is given as mag 13.3. NSV 203 = Poulakos 22 = Case 33 = CCS 20 = IRAS 00321+6102. Dearborn 23497 is very close at mag 11.5 and Sp M0. Ichikawa, Publ. Astron. Soc. Japan, Vol.33, p. 107-33 (1981) lists this star as number 20 in Table 3 (C-type stars). Maehara and Soyano, Ann. Tokyo Astron. Obs., 2nd. Ser., Vol. 21, No.3, p. 293-310 (1987) list this star as number 91. Possibility of ephemeris with JDmax = 2447690 + 525E ? TAV 0136+60 1989/52 7.3-8.1? 5 Jul 1989 TA EC-318 Cas 10(20) Faint in late 1988. Another fade in mid-1992 reported on TA EC-643. Identified as SAO 11899 = IRAS 01364+6038 = Dearborn 24581. TASV 2321+46 1989/53 9.9-10.6? 17 Jul 1989 TA EC-320 And 31 Bright in January 1989? Identified as IRAS 23216+4635 = Dearborn 43000 = GSC 3636.1830. NSV 10836 1989/57 10.6-(15.5 5 Aug 1989 TA EC-326 1825+15 Bright on August 3 undetected on earlier exposures. Her 73 Identified as NSV 10836 discovered by Morgenroth in 1934. Also = IRAS 18252+1539. TASV 1946+00 1989/58 10.0-(12.1 7 Aug 1989 TA EC-327 Aql 87(97) Bright on August 4 but at film limit on earlier frames. Identified as IRAS 19464+0021. Reanalysis in 1996 shows that star is GSC 0480.02811 and can be represented by an ephemeris JDmax = 2447743.4 + 360 E. TASV 1812+40 1989/59 9.5-10.3 9 Aug 1989 TA EC-330 Her 25 Faint in February 1989 then slowly brightening Identified as SAO 47327 = IRAS 18123+4024. Also likely to be Dearborn 16601 and 36114 (in zone overlap). NSV 783 1989/63 9.9-12.0 4 Sep 1989 TA EC-342 0215+63 Bright in November 1988 then fading with slight recovery mid-89. Cas 11(10) Identified as NSV 783 = IRC +60080. IRAS PSC gives IRAS 02157+6355 = Dearborn 25546. TASV 0449+47 1989/64 10.2-11.2 4 Sep 1989 TA EC-342 Aur 38 Bright in January and March 1989. Identified as IRAS 04494+4701 = Dearborn 28696. TASV 0510+42 1989/65 9.9-10.7 4 Sep 1989 TA EC-342 Aur 38 Bright in early 1989. Identified as IRAS 05100+4233 = Dearborn 29064. TASV 0327+44 1989/68 9.8-10.9 8 Sep 1989 TA EC-343 BAA Circ. 692 Per 36 Fade in August 1989. Object in Y Per field, close to VW Per. Identified as IRAS 03272+4425 = Dearborn 27197 = CCS 146. Confirmed as C star by objective prism survey of Perraud and Pelletier (1959). TASV 0626+34 1989/75 9.8-11.9 7 Oct 1989 TA EC-352 Aur 55 Bright in March 1989 and faint in October 1989. Identified as IRAS 06262+3444 = Dearborn 12237. Lewis et al. (1990) failed to detect this suspect at 1612 MHz. TASV 0722+37 1989/76 10.8-(11.5? 7 Oct 1989 TA EC-352 Aur 56 Faint in January 1989. There are two nearby IR sources. IRAS 07221+3751 agrees with the measured position and shows IR variability. Dearborn 12999 may be mistakenly associated with IRAS 07219+3749 which is the brighter nonvariable source. V1990 Cyg 1989/78 10.4-12.5 27 Oct 1989 TA EC-358 TAV 1941+34 At limit until September 1989. IM Cyg is nearby. Cyg 44 Identified as IRAS 19416+3422 = AFGL 2443 = IRC+30385, a very bright IR source, and the carbon star CCS 2783 = Case 456. Found independently by Lennart Dahlmark on 15 February 1988. Dahlmark had read the article by Stefan Korth (1992) in German which mentioned the discovery and 'phoned on 10 May 1992 to say that he had independently found the star to have a period of approximately 560 days. This was the precursory contact which led to my visit to meet Lennart in France in September 1992. Also studied by Lloyd Evans (1990) who suggests that this has a silicate dust shell. Jones et al., Astrophys. J. Supp., 74, 785-817 (1990) found that the star did not vary by more than +/-0.1 mag rms in the L filter on five occasions between JD 2447017 and 7503. Steven Vogt in Astron J., 78, 389-94 and 443 (1973) provides the identification BD +34 3680, confirms the suspect as a C star and reports that Bidelman, in a private communication, points out that the position was published incorrectly by Nassau and Blanco (1957). Chen et al. (1991) have studied the silicate feature at 10 microns. Designated V1990 Cyg on IBVS 4140 (72nd Name-List). Dahlmark (1994) presents further details including light curve. TASV 2204+59 1989/79 10.1-11.5 2 Nov 1989 TA EC-358 Cep 17 (7) Bright in mid-1989. Another bright IR source. Identified as IRAS 22048+5914 = AFGL 4286 = IRC 60342 and the red star Dearborn 40745. Does not appear in 24P radiosource catalogue. Subsequently identified as GSC 3981.1408. TAV 0216+48 1989/84 9.5-10.5 6 Nov 1989 TA EC-364 And 35 Brightening in late 1989. Another carbon star, brightest found. Identified as IRAS 02169+4801 = CCS 95 = Case 713 TASV 0654+45 1989/85 9.9-10.5 6 Nov 1989 TA EC-364 Lyn 40 Faint in late 1989. Close to SAO 41463. Identified as IRAS 06543+4514 = Dearborn 31070. Does not appear in 7C radiosource catalogue. TASV 0630+37 1989/86 10.5-11.2 8 Nov 1989 TA EC-364 Aur 55 Bright in March and November 1989. Identified as IRAS 06304+3738 = Dearborn 12304. NSV 11453 1989/91 11.6-15 28 Nov 1989 TA EC-369 1850+46 Brightening but at film limit on 25 November. Possibly recorded Lyr 26 in February and March 1989. Position would suggest the Identification NSV 11453 = S 9339 discovered by Hoffmeister in 1966. Also = IRAS 18500+4613. Astron. Nach. chart very deep but recognisable on prime focus shot by Mobberley on Dec 22. Brightening in September 1990 alert on TA EC-452. Subsequently found catalogued by Stephenson (1986) as Sp M7-8 with accurate (1900) position. TASV 2159+48 1989/93 9.8-10.8 30 Nov 1989 TA EC-369 Cyg 29(30) Faint in November 1989 but irregular. FG Cyg is nearby. Identified as IRAS 21592+4817 = RAFGL 5659S = Dearborn 40575. NSV 13806 1989/94 9.8-(11.8 2 Dec 1989 TA EC-369 2134+32 Bright in late 1988 with max in mid-November. Cyg 46 Identified as NSV 13806 = IRC+30475. Not in PSC or Dearborn. Vogt in Astron. J., 78, 389-94 and 443 (1973) classifies the suspect as Sp. M9 and reports that there is a possible M10 star 3-4' to the south. NSV 01020 1989/95 10.0-(16 3 Dec 1989 TA EC-375 0258+69 Bright in early April and late November 1989. Two max in 1936. Cas 11(12) Identified as NSV 01020 discovered by Morgenroth in 1936. 634.1936 Cas = CSV 263 = Prager 2552 = IRAS 02588+6956 = GSC 4317.00077. Not in Dearborn. An analysis of 260 magnitude estimates from March 1989 to mid- October 1994 reveals a sinusoidal lightcurve indicating a Mira variable with a period of 244 days. The results appeared in The Astronomer, vol.32, no.373, p.17-18 (1995 May) in a paper co-authored with Margareta Westlund. CC Cam 1989/96 10.7-14.5 3 Dec 1989 TA EC-375 TAV 0451+69 Bright in December 1988 and January 1989. Cam 13 Identified as IRAS 04518+6922. Not in Dearborn. A study by Dietmar Boehme published in Mitt. Verand. Sterne and The Astronomer, vol.29, no.337, p.15 (1992 May) showed that this is a Mira with ephemeris JDmax = 2441990 + 242E. Designated CC Cam on IBVS 3840 (71st Name-List). Marsakova et al. (1994) report a periodogram analysis of 57 plates in the Odessa collection confirming the 242-day period and revealing another oscillation at 151.7 days. Abramyan and Gigoyan (1995) report the detection of this star on the First Byurakan Spectral Sky Survey (sixth list of late-type stars) with the designation FBS 0451+693. Further study by Mickaelian (1997). TASV 0356+34 1989/102 10.8-11.7 20 Dec 1989 TA EC-375 Per 51 Faint in January 1989 bright in December 1989. Identified as IRAS 03565+3432 but not in Dearborn. Rudolf (1994) reports an analysis of 315 Sonneberg plates from 1963 to 1993 showing a slow irregular lightcurve with small amplitude (0.5 mag). [Note that Rudolf refers to the star as "TASV 0365+34" and attributes the discovery to Dahlmark.] Marsakova et al. (1994) report a periodogram analysis of 94 plates in the Odessa collection suggesting a 10 kday period! TASV 0413+31 1989/104 10.0-11.0 24 Dec 1989 Per 51(63) Bright in January-February 1989, faint in mid-December 1989. Probably IRAS 04137+3114 = RAFGL 560. May be Dearborn 10379. Wilson and Barrett (1972) failed to detect an OH maser. Crocker and Hagen (1983) failed to detect a water maser. Lewis et al. (1990) failed to detect OH maser emission at 1612 MHz. However, Lewis (1992) reports detection of water maser emission at 22 GHz using the Arecibo telescope. Marsakova et al. (1994) report a periodogram analysis of 100 plates in the Odessa collection in three subintervals indicating an increase in brightness and scatter but with periods in the 116-137 days range. TASV 0714+39 1989/105 9.2-10.3 27 Dec 1989 Aur 56 Bright in March and December 1989. Identified as IRAS 07145+3912 = Dearborn 12910. Marsakova et al. (1994) report a periodogram analysis of 98 plates in the Odessa collection which shows a 3-harmonic wave with a fundamental period of 403.2 days. V513 Per 1989/106 10.4-13? 28 Dec 1989 TA-EC 380 TAV 0329+41 Bright in February 1989. Carbon star. Per 36(50) Identified as IRAS 03291+4116 = Dearborn 9974 = CCS 149 = D 161 and 263. Dave McAdam has archives suggesting maxima in March 1983, October 1986 and December 1987. Period analysis suggests JDmax = 2447559 + 423E. Details published in The Astronomer, vol.27, no.319, p.149 (1990). Designated V513 Per on IBVS 3840 (71st Name-List). REFERENCES Abramyan, G.V., Gigoyan, K.S. 1995, Astrofizika, 38, 211 Chen P.-s. et al. 1991, Acta Astron. Sin., 32, 389-96 Crocker, D.A., Hagen, W. 1983, Astron. Astrophys. Suppl., 54, 405- Dahlmark, L. 1993, Inf. Bull. Variable Stars, 3855 Dahlmark, L. 1994, J. Am. Assoc. Variable Star Obs., 23, 34-63 Korth, S. 1992, Sterne und Weltraum, 31, 254-5 Lewis, B.M. et al. 1990, Astrophys. J., 362, 634-51 Lewis, B.M. 1992, Astrophys. J., 396, 251-66 Lloyd Evans, T. 1990, Mon. Not. R. Astron. Soc., 243, 336-48 Marsakova, V.I. et al. 1994, Odessa Astron. Publ., 7, 70-5 Mickaelian, A.M. 1997, Astrofizika, 40, 5-18 Rudolf, E. 1994, Mitt. Veranderliche Sterne, 12, 186-7 Stephenson, C.B. 1986, Astrophys. J., 301, 927-37 Wilson, W.J., Barrett, A.H. 1972, Astron. Astrophys., 17, 385- VSTAT89.TXT 19 January 1999