C/2025 J1 (Borisov) (Record n° 29855)
Perihelion distance : 3.58 AU
Inclination to ecliptic : 95 °
Eccentricity : 1
NASA/JPL elements
IAU/MPC elements
On 2025 Jul 30 21h52 UT by Jean-Gabriel Bosch
(Copyright Jean-Gabriel Bosch)Magnitude (MPC m2) 18.6 Magnitude standard deviation 0.1 Aperture radius for m2 6.4 " r (dist/Sun) 4.552 AU d (dist/Earth) 5.004 AU Right ascension 153.143 ° Declination +75.24158 ° 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 19
ACK MPCReport file updated 2025.07.31 07:59:04
NET Gaia DR2
AC2 jgbosch@free.fr
CK25J010 KB2025 07 30.91093 10 12 34.32 +75 14 29.7 18.5 G Y87
CK25J010 KB2025 07 30.92115 10 12 34.82 +75 14 23.8 18.8 G Y87
CK25J010 KB2025 07 30.93137 10 12 35.51 +75 14 17.8 18.5 G Y87
Instrument type Newton Instrument aperture (0=naked eye) 250 mm Instrument focale length 1187.5 mm Instrument focale/diameter 4.75 Camera Asi 294MM Sensor CMOS Sensor temperature -10 °C Binning 4x4 Mount EQ6 Picture exposure details 99x25s Observatory MPC code Y87 Location Trevinca skies-Amalthea Reference stars catalog (ast) Gaia DR2
Used softwares Tycho Tracker Image resize factor 2 Resulting picture sampling (scale) 1.6 "/pix Observation submission date 2025 Jul 31 08h20m48s Observation modification date 2025 Oct 18 15h21m15s