GR Boo (Eclipsing binary)

RA: 14h 59m 54.50s, DE: +25° 54' 34.00" (224.9770833283, 25.9094444444)

5/18/2017, 20:02 - 5/18/2017, 22:35 (UTC)

Data:
  • Observer: Martin Lehky
  • Created: 6/7/2017, 16:16
  • Station: Hradec Králové, CZ (MPC 048)
  • Instrument: HK25, NWT 250/1000 + SBIG ST-7 + BVRcIc
  • Photometric band: I
  • Time standard: Gjd
  • Brightness in: Mag
Note:
GENERATED FROM MINIMUM id=10082
Determined minima
  • S: 2457892.39471 (5/18/2017, 21:28)
    HJDmin: 2457892.39870 +/- 0.00039  
    Heliocentric correction: 0.00399
    Note: 
    # NAME GR Boo
# VAR 14:59:54.55 +25:54:33.6 2451996.584 0.37667 11.45-11.9 EW (VSX 20170503)
# OBS Martin Lehky (Hradec Kralove CZ; 0.25-m f/4 reflector + CCD ST7)
# FLT VRcIc
# RED CMunipack 1.1.26 + Peranso 2.50 + SPHE/VSES Upload Form (2012) var.astro.cz
# NOTE 18/19 V 2017; V_40_90s (37/23); Rc_40_60s (38/21); Ic_40_60s (39/22); 2.5h; minimum S
# NOTE FLT V 2457892.39408 +/- 0.00032; 20170518 21:27:29 (UT) GEO
# NOTE FLT Rc 2457892.39445 +/- 0.00020; 20170518 21:28:00 (UT) GEO
# NOTE FLT Ic 2457892.39506 +/- 0.00026; 20170518 21:28:53 (UT) GEO
# NOTE FLT VRcIc average 2457892.39453 +/- 0.00032; 20170518 21:28:07 (UT) GEO
# COND fine clear weather

----- EBFit result: -----
Tmin = 2457892.39471
Error (1 sigma): +0.00040/-0.00039 (Bootstrapping), +0.00022/-0.00026 (Prayer bead), +0.00030/-0.00030 (LSM)
Error (95% CI):  +0.00078/-0.00078 (Bootstrapping), +0.00035/-0.00037 (Prayer bead)
LSM: chi^2 = 35.6, n_freedom = 23
Actions:
Light curve
Neighborhood of the object, comparison and check stars
Chart - GR Boo, JD 2457892.33473
Comments