C/2025 J1 (Borisov) (Record n° 31357)
NASA/JPL elements
IAU/MPC elements
On 2026 Apr 19 21h39 UT by Jean-Gabriel Bosch
(Copyright Jean-Gabriel Bosch)Nuclear magnitude (m2) 17.3 m2 standard deviation 0.2 Aperture radius used for m2 6.4 " r (dist/Sun) 3.613 AU d (dist/Earth) 4.069 AU Right ascension 05 20 04.46 h m s Declination +44 20 32.9 ° ' " MPC report COD Y87
CON J.-G. Bosch
OBS J.-G. Bosch
MEA J.-G. Bosch
TEL 0.25-m f/4.75 reflector + CMO
NUM 33
ACK MPCReport file updated 2026.04.20 10:20:53
NET Gaia DR2
AC2 jgbosch@free.fr
CK25J010 KB2026 04 19.90206 05 20 04.46 +44 20 32.9 17.2 G Y87
CK25J010 KB2026 04 19.91378 05 20 05.06 +44 20 22.3 17.2 G Y87
CK25J010 KB2026 04 19.92549 05 20 05.73 +44 20 12.7 17.6 G Y87
Instrument type Newton Instrument aperture (0=naked eye) 250 mm Instrument focale length 1187.5 mm Instrument focale/diameter 4.75 Camera 294MM Sensor CMOS Sensor temperature 0 °C Binning 4x4 Mount EQ6-R pro Exposure details 120 Observatory MPC code Y87 Location Trevinca skies-Amalthea Reference stars catalog Gaia DR2
Used softwares Tycho Tracker Image resize factor 2 Resulting picture sampling (scale) 1.6 "/pix Observation submission date 2026 Apr 20 10h22m35s Observation modification date 2026 Apr 20 10h25m31s