AAVSO: American Association of Variable Star Observers
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Showing 124 observations by BDAD

Star JD Calendar Date Magnitude Error Filter Observer
ASASSN-18TD 2458355.50822 2018 Aug. 25.00822 16.510 0.202 CV BDAD Details...
Comp Star Check Star Transformed Chart Comment Codes Notes
ensemble — No Astrometrica — Stack 10x20s (3x3 bin), 0.25-m f/8 RC + CCD, UCAC4 comp. stars 14-16.5 mag
ASASSN-18TD 2458355.50337 2018 Aug. 25.00337 16.412 0.189 CV BDAD Details...
Comp Star Check Star Transformed Chart Comment Codes Notes
ensemble — No Astrometrica — Stack 10x20s (3x3 bin), 0.25-m f/8 RC + CCD, UCAC4 comp. stars 14-16.5 mag
ASASSN-18TD 2458355.50096 2018 Aug. 25.00096 16.497 0.197 CV BDAD Details...
Comp Star Check Star Transformed Chart Comment Codes Notes
ensemble — No Astrometrica — Stack 10x20s (3x3 bin), 0.25-m f/8 RC + CCD, UCAC4 comp. stars 14-16.5 mag
ASASSN-18TD 2458355.49854 2018 Aug. 24.99854 16.617 0.160 CV BDAD Details...
Comp Star Check Star Transformed Chart Comment Codes Notes
ensemble — No Astrometrica — Stack 10x20s (3x3 bin), 0.25-m f/8 RC + CCD, UCAC4 comp. stars 14-16.5 mag
ASASSN-18QO 2458340.49484 2018 Aug. 09.99484 16.99 0.124 CV BDAD Details...
Comp Star Check Star Transformed Chart Comment Codes Notes
ensemble — No Astrometrica — 0.25-m f/8 Ritchey-Chretien + CCD, 20x20s 3x3 bin. URAT-1 V comp. stars
ASASSN-18QO 2458340.49000 2018 Aug. 09.99000 16.54 0.102 CV BDAD Details...
Comp Star Check Star Transformed Chart Comment Codes Notes
ensemble — No Astrometrica — 0.25-m f/8 Ritchey-Chretien + CCD, 20x20s 3x3 bin. URAT-1 V comp. stars
ASASSN-18QO 2458340.48515 2018 Aug. 09.98515 16.42 0.093 CV BDAD Details...
Comp Star Check Star Transformed Chart Comment Codes Notes
ensemble — No Astrometrica — 0.25-m f/8 Ritchey-Chretien + CCD, 20x20s 3x3 bin. URAT-1 V comp. stars
ASASSN-13ah 2458306.47019 2018 Jul. 06.97019 16.36 0.02 CV BDAD Details...
Comp Star Check Star Transformed Chart Comment Codes Notes
ensemble — No Astrometrica — 10x60s, 3x3 bin, 0.25-m f/8 RC + CCD. Comp. stars 14.5-17 mag from URAT-1 star catalog. Imaged as AT 2018dbi.
AT 2017EAW 2458294.53854 2018 Jun. 25.03854 17.81 0.09 CV BDAD Details...
Comp Star Check Star Transformed Chart Comment Codes Notes
ensemble — No Astrometrica — 13x60s, 3x3 bin. 0.25-m f/8 RC + CCD, URAT-1 comp stars
AT 2018COW 2458291.48715 2018 Jun. 21.98715 14.94 0.01 CV BDAD Details...
Comp Star Check Star Transformed Chart Comment Codes Notes
ensemble — No Astrometrica — 48x20s 3x3 bin, URAT-1 comp stars 12-16 mag. 8" aperture, 20" gap, not corrected for contamination from background source
AT 2017EAW 2458273.50050 2018 Jun. 04.00050 17.97 0.07 CV BDAD Details...
Comp Star Check Star Transformed Chart Comment Codes Notes
ensemble — No Astrometrica — 0.25-m f/8 RC+CCD. 60x20s, 3x3 bin. URAT1 comp stars 15.5-17 mag
ASASSN-18kg 2458269.44427 2018 May. 30.94427 <18.3 — CV BDAD Details...
Comp Star Check Star Transformed Chart Comment Codes Notes
ensemble — No Astrometrica — 0.25-m f/8 RC+CCD. Stack 58x20s, 3x3 bin. No detection with limiting magnitude 18.3
V392 PER 2458246.42166 2018 May. 07.92166 8.30 0.04 CV BDAD Details...
Comp Star Check Star Transformed Chart Comment Codes Notes
ensemble — No Astrometrica — 40x1s, 3x3 bin. 0.25-m f/8 Ritchey-Chretien. UCAC4 comp stars 8-14 mag.
V392 PER 2458241.42856 2018 May. 02.92856 7.62 0.03 CV BDAD Details...
Comp Star Check Star Transformed Chart Comment Codes Notes
ensemble — No Astrometrica — 120x1s, 3x3 bin. 0.25-m f/8 RC. 4 UCAC4 comp stars (9-13 mag)
AT 2017EAW 2458234.46667 2018 Apr. 25.96667 17.62 0.09 CV BDAD Details...
Comp Star Check Star Transformed Chart Comment Codes Notes
ensemble — No Astrometrica — stack 30x20s, 3x3 bin. 0.25-m f/8 RC + CCD. URAT-1 comp. stars 13.5-17.5 mag
SN 2017EAW 2458182.57812 2018 Mar. 05.07812 16.77 0.06 CV BDAD Details...
Comp Star Check Star Transformed Chart Comment Codes Notes
ensemble — No Astrometrica — 0.25-m f/8 RC CCD. 7x60s, 3x3 bin. Comp stars 12-17 mag.
SN 2017EAW 2458182.57326 2018 Mar. 05.07326 16.71 0.05 CV BDAD Details...
Comp Star Check Star Transformed Chart Comment Codes Notes
ensemble — No Astrometrica — 0.25-m f/8 RC + CCD. 14x60s, 3x3 bin. Comp stars 12-17 mag.
SN 2018GJ 2458150.42986 2018 Jan. 31.92986 14.96 0.01 CV BDAD Details...
Comp Star Check Star Transformed Chart Comment Codes Notes
ensemble — No Astrometrica — 0.25-m f/8 RC + CCD. 23x10s. URAT1 comp stars 12-15m.
AT 2017EAW 2458150.34981 2018 Jan. 31.84981 16.58 0.06 CV BDAD Details...
Comp Star Check Star Transformed Chart Comment Codes Notes
ensemble — No Astrometrica — 0.25-m f/8 RC + CCD. 20x20s stack, 3x3 bin. URAT1 comp stars 12-16 mag.
AT 2017EAW 2458150.34497 2018 Jan. 31.84497 16.54 0.06 CV BDAD Details...
Comp Star Check Star Transformed Chart Comment Codes Notes
ensemble — No Astrometrica — 0.25-m f/8 RC + CCD. 20x20s stack, 3x3 bin. URAT1 comp stars 12-16 mag.
AT 2017EAW 2458150.34012 2018 Jan. 31.84012 16.43 0.06 CV BDAD Details...
Comp Star Check Star Transformed Chart Comment Codes Notes
ensemble — No Astrometrica — 0.25-m f/8 RC + CCD. 20x20s stack, 3x3 bin. URAT1 comp stars 12-16 mag.
SN 2018GV 2458148.47083 2018 Jan. 29.97083 13.15 0.01 CV BDAD Details...
Comp Star Check Star Transformed Chart Comment Codes Notes
ensemble — No Astrometrica — 30x20s, 3x3 bin. 0.25-m f/8 RC+CCD. URAT-1 comp. stars 12-15 mag.
SN 2018GJ 2458142.39722 2018 Jan. 23.89722 14.35 0.06 CV BDAD Details...
Comp Star Check Star Transformed Chart Comment Codes Notes
ensemble — No Astrometrica — 0.07-m f/5.9 refractor + CCD. 28x20s. URAT1 comp stars 9-14 mag.
SN 2018GV 2458138.45278 2018 Jan. 19.95278 14.58 0.02 CV BDAD Details...
Comp Star Check Star Transformed Chart Comment Codes Notes
ensemble — No Astrometrica — 42x20s, 3x3 bin. 0.25-m f/8 RC+CCD. URAT-1 comp. stars 12-15 mag.
SN 2018GJ 2458134.40278 2018 Jan. 15.90278 14.76 0.03 CV BDAD Details...
Comp Star Check Star Transformed Chart Comment Codes Notes
ensemble — No Astrometrica — 0.25-m f/8 RC + CCD. 23x10s. URAT1 comp stars 12-15m.
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