[vsnet-alert 11251] New flare star candidates

[Seiichito Kiyota]

Hideo Nishimura (Shizuoka, Japan) found brightning of GSC 02170-01762  
on 21 Mar. 2009 during his photographic nova patrol.
Yukio Sakurai (Ibaraki, Japan) and Koichi Itagaki (yamagata, Japan)  
confirmed it.
Nishimura checked his patrol images since Nov. 2007 but no other  
brightnig was recorded.
It is a red star (B-V=1.61 ;multi-color CCD photometry by S. Kiyota).
And it might be nearby dowarf star had large proper motion because it  
is listed in Wolf catalog.
Type of variable was unknown but it might be a flare star.

GSC 02170-01762
RA(J2000)	Dec(J2000)	type	Mag.	per.
20 43 34.33	+24 07 41.2	-	8.6-11.6	-

Cross-identification(s):
  GSC 02170-01762 = CSS 1237 = 1RXS J204334.9+240732 = Wolf 1360

Spectroscopic observation is encouraged to confirm nature of the star.


                                             Thank you.
                                             Seiichiro Kiyota



Observer              Instruments
Nis: Hideo Nishimura  Canon EOS5D digital camera 120mm lens
Siy: Yukio Sakurai    Fuji Finpix S2pro digital camera 85mm lens
Ita: Kouichi Itagaki  21cm (fl=628mm) Reflector Bitran BN-52E CCD camera
Kis: Seiichiro Kiyota 25cm Ritchey-Chretien ST-10XE CCD camera

JD　mag. Observer
2454407.8958 11.5 Nis
2454408.8862 11.5 Nis
2454415.8940 11.5 Nis
2454416.8919 11.5 Nis
2454417.9059 11.5 Nis
2454424.9091 <10.0 Nis
2454426.8874 <10.0 Nis
2454428.8778 11.5 Nis
2454435.8872 11.5 Nis
2454436.8775 11.5 Nis
2454437.9641 <11.5 Nis
2454439.8800 11.5 Nis
2454440.8813 <11.5 Nis
2454441.8667 11.5 Nis
2454442.8652 <11.5 Nis
2454449.8798 <11.5 Nis
2454450.8639 <11.5 Nis
2454451.8798 <10.5 Nis
2454452.8775 <10.5 Nis
2454454.8805 <11.5 Nis
2454460.9552 <10.0 Nis
2454461.8719 <11.5 Nis
2454463.8774 <10.5 Nis
2454467.8770 11.5 Nis
2454470.8795 <11.5 Nis
2454471.8777 <10.5 Nis
2454478.8779 <10.5 Nis
2454481.8976 <10.5 Nis
2454495.3547 <9.5 Nis
2454496.3558 <9.5 Nis
2454497.3553 <10.0 Nis
2454501.3564 <9.5 Nis
2454509.3544 <10.5 Nis
2454510.3457 <10.0 Nis
2454511.3449 <10.5 Nis
2454512.3428 <10.5 Nis
2454513.3525 <11.5 Nis
2454514.3467 <10.5 Nis
2454516.3377 <10.0 Nis
2454517.3400 <10.0 Nis
2454520.3463 <10.5 Nis
2454521.3435 <10.5 Nis
2454523.3426 <11.5 Nis
2454524.3417 <11.5 Nis
2454528.3459 <10.5 Nis
2454531.3190 <11.0 Nis
2454534.3202 <10.5 Nis
2454536.3079 11.5 Nis
2454537.3069 <10.5 Nis
2454540.3081 <11.5 Nis
2454541.3068 <11.5 Nis
2454543.3097 <10.5 Nis
2454547.3009 <10.5 Nis
2454550.3045 <10.5 Nis
2454552.3049 <11.5 Nis
2454557.3148 <11.0 Nis
2454558.2994 <10.5 Nis
2454559.3049 <10.5 Nis
2454560.3003 <11.5 Nis
2454561.2925 11.5 Nis
2454562.3033 <11.5 Nis
2454565.2814 11.5 Nis
2454569.2675 11.5 Nis
2454572.2806 <11.0 Nis
2454581.2658 11.5 Nis
2454586.2685 <11.0 Nis
2454587.2572 11.5 Nis
2454592.2516 11.5 Nis
2454593.2397 11.5 Nis
2454594.2624 <10.5 Nis
2454601.2717 11.5 Nis
2454607.2544 11.5 Nis
2454612.2197 11.5 Nis
2454613.2060 11.5 Nis
2454616.2022 11.5 Nis
2454627.1807 11.5 Nis
2454631.1792 11.5 Nis
2454649.0827 11.5 Nis
2454659.0601 <11.0 Nis
2454660.0636 11.5 Nis
2454661.0506 11.5 Nis
2454662.0752 <11.0 Nis
2454670.0241 11.5 Nis
2454671.0107 <11.5 Nis
2454673.1351 11.5 Nis
2454675.0157 <11.5 Nis
2454676.9983 11.5 Nis
2454684.9928 11.5 Nis
2454685.9954 11.5 Nis
2454698.1043 11.5 Nis
2454699.0234 11.5 Nis
2454699.9725 11.5 Nis
2454705.0674 11.5 Nis
2454709.9881 11.5 Nis
2454710.9645 11.5 Nis
2454713.9757 11.5 Nis
2454715.9694 11.5 Nis
2454717.9472 <11.0 Nis
2454720.0627 11.5 Nis
2454721.0659 <11.0 Nis
2454725.9538 11.5 Nis
2454729.9211 11.5 Nis
2454732.9311 11.5 Nis
2454733.9646 11.5 Nis
2454736.0149 11.5 Nis
2454745.9275 11.5 Nis
2454747.9220 11.5 Nis
2454748.9708 11.5 Nis
2454751.0568 11.5 Nis
2454754.9273 11.5 Nis
2454755.9735 11.5 Nis
2454757.9159 11.5 Nis
2454759.9194 11.5 Nis
2454764.0153 11.5 Nis
2454766.9051 11.5 Nis
2454767.8969 11.5 Nis
2454771.8954 11.5 Nis
2454774.8992 11.5 Nis
2454783.8781 11.5 Nis
2454784.8826 11.5 Nis
2454787.8806 11.5 Nis
2454790.8847 11.5 Nis
2454791.8830 11.5 Nis
2454793.8801 11.5 Nis
2454795.8923 11.5 Nis
2454796.8657 11.5 Nis
2454798.9150 11.5 Nis
2454800.8715 11.5 Nis
2454802.8697 11.5 Nis
2454803.8982 11.5 Nis
2454804.8963 11.5 Nis
2454805.9466 11.5 Nis
2454806.8698 11.5 Nis
2454807.8856 11.5 Nis
2454810.8672 11.5 Nis
2454812.8741 11.5 Nis
2454814.8940 11.5 Nis
2454815.8719 11.5 Nis
2454816.8661 11.5 Nis
2454818.8933 11.5 Nis
2454820.8699 11.5 Nis
2454823.8745 11.5 Nis
2454825.8895 11.5 Nis
2454826.8803 11.5 Nis
2454827.8705 11.5 Nis
2454828.8718 11.5 Nis
2454829.8699 11.5 Nis
2454830.8728 11.5 Nis
2454831.8708 11.5 Nis
2454832.8695 11.5 Nis
2454833.8723 11.5 Nis
2454834.8702 <10.5 Nis
2454835.8708 <10.5 Nis
2454837.8897 11.5 Nis
2454841.8699 11.5 Nis
2454843.8749 <10.5 Nis
2454844.8806 11.5 Nis
2454845.8774 <10.5 Nis
2454846.8800 11.5 Nis
2454860.3555 <9.0 Nis
2454865.3541 <8.0 Nis
2454868.3371 <10.0 Nis
2454874.3409 <9.0 Nis
2454877.3494 <10.5 Nis
2454879.3385 <10.5 Nis
2454880.3038 <10.5 Nis
2454881.3524 <10.0 Nis
2454883.3359 <10.5 Nis
2454884.3419 <10.5 Nis
2454892.3181 <10.5 Nis
2454897.3131 11.5 Nis
2454902.3074 11.5 Nis
2454905.3303 11.5 Nis
2454906.3134 11.5 Nis
2454908.3066 11.5 Nis
2454909.3035 <10.5 Nis
2454911.3034 8.8 Nis
2454911.3037 9.3 Nis
2454911.3063 9.3 Siy
2454915.2869 11.5 Nis
2454916.3097 11.5 Nis
2454917.2978 11.5 Nis
2454919.2980 11.5 Nis
2454921.2876 11.5 Nis
2454912.2156 10.0 Ita
2454921.9154　13.22 B Kis
2454921.9119 11.61 V Kis
2454921.9189 9.45 Ic Kis