OTO - Ohshima Tamashima Observatory- - V881_Per Diff

!VRc Photometry of V881 Per

GSC 02846-00404 =2MASS J02595311+3801482 =1SWASP J025953.10+380148.1
=NSVS 4027822 =1RXS J025952.4+38014

RA:02 59 53.12 Dec:+38 01 48.3
    =2.998089       =38.030083
ICRS coord. (ep=J2000): 02 59 53.1132423916 +38 01 47.982904785

Spectral type: K0IV
not weak-line T Tau Star (Li and Hu, 1998, A&A Suppl, Vol.312, p.173)
Proper motions mas/yr : 53.826 -28.922 [0.080 0.064 90] A 2018yCat.1345....0G
Parallaxes (mas):       8.1346 [0.0532] A 2018yCat.1345....0G
                      122.9[0.80]pc
B 10.7
V 11.09
R 10.34
G 10.5474
J 9.142
H 8.654
K 8.540



*Observation at OTO

  Telescope: Meade LX-200R 20cm f/6.3
  CCD:       ST-8XE 90sec
  Filter:    V and Rc
  Comp. SAO 56072 (A5V B 9.71 [0.03] V 9.50 [0.03] G 9.3923 [0.0005]

*Light Curve of V881 Per
**Min = 2452500.1272(2) + 0.38737785(4) x E  (Zola et al., 2013)
[[/bin/V881_Per/V881_PerLC_RV.png]]


!! In 2011 season
*Dec. 18, 2011
[[/bin/V881_Per/V881_Per20111218RV.png]]

*Dec. 19, 2011
[[/bin/V881_Per/V881_Per20111219RV.png]]
*Dec. 29, 2011
[[/bin/V881_Per/V881_Per20111229RV.png]]
*Dec. 30, 2011
[[/bin/V881_Per/V881_Per20111230RV.png]]
*Dec. 31, 2011
[[/bin/V881_Per/V881_Per20111231RV.png]]
*Jan. 2, 2012
**A flare occurred.
[[/bin/V881_Per/V881_Per20120102RV.png]]
*Jan. 4, 2012
[[/bin/V881_Per/V881_Per20120104RV.png]]
*Jan. 5, 2012
[[/bin/V881_Per/V881_Per20120105RV.png]]
*Jan. 6, 2012
[[/bin/V881_Per/V881_Per20120106RV.png]]

!!  in 2018 season
30cmRC f/8 FLI ML6303 Rc-30sec, V-60sec, B-60sec

*Sep.16, 2018
[[/bin/V881_Per/V881_Per378RV_C2.png]]
*Sep.17, 2018
[[/bin/V881_Per/V881_Per379RV.png]]
*Sep.22, 2018
[[/bin/V881_Per/V881_Per384RV.png]]
*Sep.27, 2018
[[/bin/V881_Per/V881_Per389RV.png]]
*Oct.01, 2018
[[/bin/V881_Per/V881_Per393RV.png]]
*Oct.02, 2018
[[/bin/V881_Per/V881_Per394RV.png]]
*Oct.03, 2018
[[/bin/V881_Per/V881_Per395IRV.png]]
*Oct.05, 2018
[[/bin/V881_Per/V881_Per397RV.png]]
*Oct.06, 2018
[[/bin/V881_Per/V881_Per398RV.png]]
*Oct.07, 2018
[[/bin/V881_Per/V881_Per399RV.png]]
*Oct.08, 2018
[[/bin/V881_Per/V881_Per400RV.png]]
*Oct.12, 2018
Comparison:GSC 2847-0323
[[/bin/V881_Per/V881_Per404BVR.png]]
*Oct.13, 2018
Comparison:GSC 2847-0323
[[/bin/V881_Per/V881_Per405BVRsum.png]]
*Oct.17, 2018
Comparison:GSC 2847-0323
[[/bin/V881_Per/V881_Per409BVRsum.png]]
*Oct.18, 2018
Comparison:GSC 2847-0323
[[/bin/V881_Per/V881_Per410BVR.png]]
*Oct.20, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per412BVRsum.png]]
*Oct.21, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per413BVRsum.png]]
*Oct.24, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per416BVRsum.png]]
*Oct.25, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per417BVRsum.png]]
*Oct.28, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per420BVRsum.png]]
*Oct.29, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per421BVRsum.png]]
*Oct.31, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per423BVRsum.png]]
*Nov.1, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per424BVRsum.png]]
*Nov.2, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per425BVRsum.png]]
*Nov.3, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-08223
[[/bin/V881_Per/V881_Per426BVRsum.png]]
*Nov.4, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per427BVRsum.png]]
*Nov.5, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per428BVRsum.png]]
*Nov.6, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per429BVRsum.png]]
*Nov.7, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per430BVRsum.png]]
*Nov.10, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per433BVRsum.png]]
*Nov.13, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per436BVRsum.png]]
*Nov.14, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per437BVRsum.png]]
*Nov.15, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per438BVRsum.png]]
*Nov.19, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per442BVRsum.png]]
*Nov.20, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per443BVRsum.png]]
*Nov.22, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per445BVRsum.png]]
*Nov.23, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per446BVRsum.png]]
*Nov.28, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per451BVRsum.png]]
*Nov.29, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per452BVRsum.png]]
*Nov.30, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per453BVRsum.png]]
*Dec.10, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per463BVRsum.png]]
*Dec.13, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per466BVRsum.png]]
*Dec.14, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per467BVRsum.png]]
*Dec.15, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per468BVRsum.png]]
*Dec.17, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per470BVRsum.png]]
*Dec.18, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per471BVRsum.png]]
*Dec.19, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per472BVRsum.png]]
*Dec.24, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per477BVRsum.png]]
*Dec.25, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per478BVRsum.png]]
*Dec.27, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per480BVRsum.png]]
*Dec.28, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per481BVRsum.png]]
*Dec.29, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per482BVRsum.png]]
*Dec.30, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per483BVRsum.png]]
*Dec.31, 2018
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per484BVRsum.png]]
*Jan 2, 2019
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per486BVRsum.png]]
*Jan 3, 2019
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per487BVRsum.png]]
*Jan 5, 2019
Comparisons:GSC 2847-0323 GSC2846-0138 GSC2846-0822
[[/bin/V881_Per/V881_Per489BVRsum.png]]
*Jan 7, 2019
Comparisons:GSC2846-0138 GSC2846-0786 GSC2846:0798
[[/bin/V881_Per/V881_Per491BVRsum.png]]
*Jan 8, 2019
Comparisons:GSC2846-0138 GSC2846-0786 GSC2846:0798
[[/bin/V881_Per/V881_Per492BVRsum.png]]
*Jan 9, 2019
Comparisons:GSC2846-0138 GSC2846-0786 GSC2846:0798
[[/bin/V881_Per/V881_Per493BVRsum.png]]
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