C/2015 V2 (Johnson) (Record n° 17715)
NASA/JPL elements
IAU/MPC elements
On 2017 May 21 20h42 UT by Marc Deldem
(Copyright Marc Deldem)Nuclear magnitude (m2) 12.4 m2 standard deviation 0.1 Aperture radius used for m2 6.25 " r (dist/Sun) 1.664 AU d (dist/Earth) 0.854 AU Right ascension 15 05 27.42 h m s Declination +32 07 04.1 ° ' " MPC report COD K22
CON Marc DELDEM [marc.deldem@free.fr]
OBS M. Deldem
MEA M. Deldem
TEL 0.20-m f/10 Schmidt-Cassegrain + CCD + f/7.4 focal reducer
ACK MPCReport file updated 2017.05.22 21:56:41
AC2 marc.deldem@free.fr
NET Gaia DR1
CK15V020 KC2017 05 21.86254 15 05 27.42 +32 07 04.1 12.3 N K22
CK15V020 KC2017 05 21.87605 15 05 25.53 +32 06 24.5 12.5 N K22
CK15V020 KC2017 05 21.88547 15 05 24.21 +32 05 56.2 12.5 N K22
Instrumental configuration Config1 Instrument C8 Instrument type Schmidt-Cassegrain Instrument aperture (0=naked eye) 200 mm Instrument focale length 1480 mm Instrument focale/diameter 7.4 Filter(s) None Camera SBIG ST8-XME Sensor CCD Sensor size 13.8x9.2 mm2 Sensor pixels number 1530x1020 Sensor temperature -15 °C Binning 1x1 Mount G11 Motorization Yes Autoguide Yes Exposure total time 1740 s Exposure details 58x30sec Air mass 1.09 Observatory MPC code K22 Reference stars catalog Gaia DR1
Used softwares ASTROMETRICA Resulting picture sampling (scale) 1.25 "/pix Image processing DDP Observation submission date 2017 May 22 21h59m38s Observation modification date 2017 May 22 22h10m19s